Eignere Block FIR Filer

5 files changed, 1005 insertions, 56 deletions

diff --git a/simulation/QAM_Fading/epy_block_0.py b/simulation/QAM_Fading/epy_block_0.py
index 8c7e300..286e5f1 100644
--- a/simulation/QAM_Fading/epy_block_0.py
+++ b/simulation/QAM_Fading/epy_block_0.py
@@ -7,13 +7,14 @@ be the parameters. All of them are required to have default values!
 """
 
 import numpy as np
+from numpy.fft import fft,ifft,fftshift
 from gnuradio import gr
 
 
 class blk(gr.sync_block):  # other base classes are basic_block, decim_block, interp_block
     """Embedded Python Block example - a simple multiply const"""
 
-    def __init__(self, amplitudes=[], delays=[]):  # only default arguments here
+    def __init__(self, amplitudes=[], delays=[], los=True):  # only default arguments here
         """arguments to this function show up as parameters in GRC"""
         gr.sync_block.__init__(
             self,
@@ -23,28 +24,45 @@ class blk(gr.sync_block):  # other base classes are basic_block, decim_block, in
         )
         # if an attribute with the same name as a parameter is found,
         # a callback is registered (properties work, too).
-        self.amplitues = amplitudes
+        self.amplitudes = amplitudes
         self.delays = delays
-
+        self.temp = [0]
+        if los:
+            self.amplitudes.append(1)
+            self.delays.append(0)
         #self.fir = 
 
     def work(self, input_items, output_items):
         """example: multiply with constant"""
         inp = input_items[0]
         oup = output_items[0]
-        amplitudes = [0.2, 0.5 ,0.8]
-        delays = [3,5,2]
-        i = len(amplitudes)
+        
+        if len(self.amplitudes) != len(self.delays):
+            raise Exception("Amplitudes and Delay length dont match")
+
+        #    raise Exception("Delay length can't be one")
+        #if np.min(self.delays)<=1:
+        #    raise Exception("Delay length can't be one")
+        max_len = np.max(self.delays)
+        sum_x = np.zeros(max_len)
+        for(a,d) in zip(self.amplitudes,self.delays):
+            if d-1 <= 0:
+                x = np.concatenate([[a], np.zeros(max_len-1)])
+            else:                
+                x = np.concatenate([np.zeros(d-1), [a], np.zeros(max_len-d)])
+            sum_x += x
+        
 
-        outp[:] = [([1]+[0 for n in range (0,delays[i])]+[amplitudes[i]]) for i in range(0,i)]
+        H_int = fft(sum_x)
+        h = ifft(H_int)
 
-        return len(output_items[0])
 
 
-if __name__ == '__main__':
-    ampl = [0.2, 0.5 ,0.8]
-    delays = [3,5,2]
-    i = len(ampl)
-    [([1]+[0 for n in range (0,delays[i])]+[ampl[i]]) for i in range(0,i)]
+        y = np.convolve(inp, h)
+        y+=np.concatenate([self.temp,np.zeros(len(y)-len(self.temp))])
 
+        oup[:] = y[:len(inp)]
+        self.temp = y[len(inp):]        
+        
 
+        return len(oup)
\ No newline at end of file
diff --git a/simulation/QAM_Fading/qam_fading.py b/simulation/QAM_Fading/qam_fading.py
index ac1106c..957530d 100755
--- a/simulation/QAM_Fading/qam_fading.py
+++ b/simulation/QAM_Fading/qam_fading.py
@@ -87,12 +87,16 @@ class qam_fading(gr.top_block, Qt.QWidget):
         self.phase_bw = phase_bw = 2 * 3.141592653589793 / 100
         self.noise_volt = noise_volt = 0.0001
         self.freq_offset = freq_offset = 0
+        self.fading_3 = fading_3 = 0
+        self.fading_2 = fading_2 = 0
         self.fading_1 = fading_1 = 2
         self.eq_ntaps = eq_ntaps = 15
         self.eq_mod = eq_mod = 1
         self.eq_gain = eq_gain = .01
         self.const = const = digital.constellation_16qam().base()
         self.chn_taps = chn_taps = [1.0 + 0.0j, ]
+        self.amp_3 = amp_3 = 0
+        self.amp_2 = amp_2 = 0
         self.amp_1 = amp_1 = 0.2
         self.LOS_NLOS = LOS_NLOS = 1
 
@@ -168,6 +172,27 @@ class qam_fading(gr.top_block, Qt.QWidget):
             self.params_grid_layout_0.setRowStretch(r, 1)
         for c in range(0, 1):
             self.params_grid_layout_0.setColumnStretch(c, 1)
+        self._fading_3_range = Range(0, 30, 1, 0, 200)
+        self._fading_3_win = RangeWidget(self._fading_3_range, self.set_fading_3, 'Fading 3', "counter_slider", int)
+        self.params_grid_layout_2.addWidget(self._fading_3_win, 3, 0, 1, 1)
+        for r in range(3, 4):
+            self.params_grid_layout_2.setRowStretch(r, 1)
+        for c in range(0, 1):
+            self.params_grid_layout_2.setColumnStretch(c, 1)
+        self._fading_2_range = Range(0, 30, 1, 0, 200)
+        self._fading_2_win = RangeWidget(self._fading_2_range, self.set_fading_2, 'Fading 2', "counter_slider", int)
+        self.params_grid_layout_2.addWidget(self._fading_2_win, 2, 0, 1, 1)
+        for r in range(2, 3):
+            self.params_grid_layout_2.setRowStretch(r, 1)
+        for c in range(0, 1):
+            self.params_grid_layout_2.setColumnStretch(c, 1)
+        self._fading_1_range = Range(1, 30, 1, 2, 200)
+        self._fading_1_win = RangeWidget(self._fading_1_range, self.set_fading_1, 'Fading', "counter_slider", int)
+        self.params_grid_layout_2.addWidget(self._fading_1_win, 1, 0, 1, 1)
+        for r in range(1, 2):
+            self.params_grid_layout_2.setRowStretch(r, 1)
+        for c in range(0, 1):
+            self.params_grid_layout_2.setColumnStretch(c, 1)
         self._eq_gain_range = Range(0, .1, .001, .01, 200)
         self._eq_gain_win = RangeWidget(self._eq_gain_range, self.set_eq_gain, 'Equalizer Rate', "counter_slider", float)
         self.params_grid_layout_1.addWidget(self._eq_gain_win, 0, 0, 1, 1)
@@ -175,11 +200,32 @@ class qam_fading(gr.top_block, Qt.QWidget):
             self.params_grid_layout_1.setRowStretch(r, 1)
         for c in range(0, 1):
             self.params_grid_layout_1.setColumnStretch(c, 1)
+        self._amp_3_range = Range(0, 5, 0.1, 0, 200)
+        self._amp_3_win = RangeWidget(self._amp_3_range, self.set_amp_3, 'Ampliude 3', "counter_slider", float)
+        self.params_grid_layout_2.addWidget(self._amp_3_win, 3, 1, 1, 1)
+        for r in range(3, 4):
+            self.params_grid_layout_2.setRowStretch(r, 1)
+        for c in range(1, 2):
+            self.params_grid_layout_2.setColumnStretch(c, 1)
+        self._amp_2_range = Range(0, 5, 0.1, 0, 200)
+        self._amp_2_win = RangeWidget(self._amp_2_range, self.set_amp_2, 'Ampliude 2', "counter_slider", float)
+        self.params_grid_layout_2.addWidget(self._amp_2_win, 2, 1, 1, 1)
+        for r in range(2, 3):
+            self.params_grid_layout_2.setRowStretch(r, 1)
+        for c in range(1, 2):
+            self.params_grid_layout_2.setColumnStretch(c, 1)
         self._amp_1_range = Range(0, 5, 0.1, 0.2, 200)
         self._amp_1_win = RangeWidget(self._amp_1_range, self.set_amp_1, 'Ampliude', "counter_slider", float)
-        self.params_grid_layout_2.addWidget(self._amp_1_win, 1, 0, 1, 1)
+        self.params_grid_layout_2.addWidget(self._amp_1_win, 1, 1, 1, 1)
         for r in range(1, 2):
             self.params_grid_layout_2.setRowStretch(r, 1)
+        for c in range(1, 2):
+            self.params_grid_layout_2.setColumnStretch(c, 1)
+        self._LOS_NLOS_range = Range(0, 1, 1, 1, 200)
+        self._LOS_NLOS_win = RangeWidget(self._LOS_NLOS_range, self.set_LOS_NLOS, 'LOS_NLOS', "counter_slider", int)
+        self.params_grid_layout_2.addWidget(self._LOS_NLOS_win, 0, 0, 1, 1)
+        for r in range(0, 1):
+            self.params_grid_layout_2.setRowStretch(r, 1)
         for c in range(0, 1):
             self.params_grid_layout_2.setColumnStretch(c, 1)
         self.qtgui_time_sink_x_0 = qtgui.time_sink_f(
@@ -498,15 +544,8 @@ class qam_fading(gr.top_block, Qt.QWidget):
             self.plots_grid_layout_0.setRowStretch(r, 1)
         for c in range(0, 1):
             self.plots_grid_layout_0.setColumnStretch(c, 1)
-        self.interp_fir_filter_xxx_0 = filter.interp_fir_filter_ccc(1, [amp_1])
-        self.interp_fir_filter_xxx_0.declare_sample_delay(2)
-        self._fading_1_range = Range(1, 30, 1, 2, 200)
-        self._fading_1_win = RangeWidget(self._fading_1_range, self.set_fading_1, 'Fading', "counter_slider", int)
-        self.params_grid_layout_2.addWidget(self._fading_1_win, 0, 0, 1, 1)
-        for r in range(0, 1):
-            self.params_grid_layout_2.setRowStretch(r, 1)
-        for c in range(0, 1):
-            self.params_grid_layout_2.setColumnStretch(c, 1)
+        self.interp_fir_filter_xxx_0 = filter.interp_fir_filter_ccc(1, [LOS_NLOS]+(([0]*fading_1)+[amp_1])+(([0]*fading_2)+[amp_2])+(([0]*fading_3)+[amp_3]))
+        self.interp_fir_filter_xxx_0.declare_sample_delay(0)
         self.digital_pfb_clock_sync_xxx_0_0 = digital.pfb_clock_sync_ccf(sps , timing_loop_bw, rrc_taps, nfilts, nfilts/2, 1.5, 1)
         self.digital_pfb_clock_sync_xxx_0 = digital.pfb_clock_sync_ccf(sps, timing_loop_bw, rrc_taps, nfilts, nfilts/2, 1.5, 1)
         self.digital_map_bb_0_0 = digital.map_bb([0, 1, 3, 2])
@@ -543,13 +582,6 @@ class qam_fading(gr.top_block, Qt.QWidget):
         self.blocks_char_to_float_0_0 = blocks.char_to_float(1, 1)
         self.blocks_char_to_float_0 = blocks.char_to_float(1, 1)
         self.analog_random_source_x_0 = blocks.vector_source_b(list(map(int, numpy.random.randint(0, 256, 1000))), True)
-        self._LOS_NLOS_range = Range(0, 1, 1, 1, 200)
-        self._LOS_NLOS_win = RangeWidget(self._LOS_NLOS_range, self.set_LOS_NLOS, 'LOS_NLOS', "counter_slider", int)
-        self.params_grid_layout_2.addWidget(self._LOS_NLOS_win, 0, 1, 1, 1)
-        for r in range(0, 1):
-            self.params_grid_layout_2.setRowStretch(r, 1)
-        for c in range(1, 2):
-            self.params_grid_layout_2.setColumnStretch(c, 1)
 
 
 
@@ -677,11 +709,26 @@ class qam_fading(gr.top_block, Qt.QWidget):
         self.freq_offset = freq_offset
         self.channels_channel_model_0.set_frequency_offset(self.freq_offset)
 
+    def get_fading_3(self):
+        return self.fading_3
+
+    def set_fading_3(self, fading_3):
+        self.fading_3 = fading_3
+        self.interp_fir_filter_xxx_0.set_taps([self.LOS_NLOS]+(([0]*self.fading_1)+[self.amp_1])+(([0]*self.fading_2)+[self.amp_2])+(([0]*self.fading_3)+[self.amp_3]))
+
+    def get_fading_2(self):
+        return self.fading_2
+
+    def set_fading_2(self, fading_2):
+        self.fading_2 = fading_2
+        self.interp_fir_filter_xxx_0.set_taps([self.LOS_NLOS]+(([0]*self.fading_1)+[self.amp_1])+(([0]*self.fading_2)+[self.amp_2])+(([0]*self.fading_3)+[self.amp_3]))
+
     def get_fading_1(self):
         return self.fading_1
 
     def set_fading_1(self, fading_1):
         self.fading_1 = fading_1
+        self.interp_fir_filter_xxx_0.set_taps([self.LOS_NLOS]+(([0]*self.fading_1)+[self.amp_1])+(([0]*self.fading_2)+[self.amp_2])+(([0]*self.fading_3)+[self.amp_3]))
 
     def get_eq_ntaps(self):
         return self.eq_ntaps
@@ -718,18 +765,33 @@ class qam_fading(gr.top_block, Qt.QWidget):
         self.chn_taps = chn_taps
         self.channels_channel_model_0.set_taps(self.chn_taps)
 
+    def get_amp_3(self):
+        return self.amp_3
+
+    def set_amp_3(self, amp_3):
+        self.amp_3 = amp_3
+        self.interp_fir_filter_xxx_0.set_taps([self.LOS_NLOS]+(([0]*self.fading_1)+[self.amp_1])+(([0]*self.fading_2)+[self.amp_2])+(([0]*self.fading_3)+[self.amp_3]))
+
+    def get_amp_2(self):
+        return self.amp_2
+
+    def set_amp_2(self, amp_2):
+        self.amp_2 = amp_2
+        self.interp_fir_filter_xxx_0.set_taps([self.LOS_NLOS]+(([0]*self.fading_1)+[self.amp_1])+(([0]*self.fading_2)+[self.amp_2])+(([0]*self.fading_3)+[self.amp_3]))
+
     def get_amp_1(self):
         return self.amp_1
 
     def set_amp_1(self, amp_1):
         self.amp_1 = amp_1
-        self.interp_fir_filter_xxx_0.set_taps([self.amp_1])
+        self.interp_fir_filter_xxx_0.set_taps([self.LOS_NLOS]+(([0]*self.fading_1)+[self.amp_1])+(([0]*self.fading_2)+[self.amp_2])+(([0]*self.fading_3)+[self.amp_3]))
 
     def get_LOS_NLOS(self):
         return self.LOS_NLOS
 
     def set_LOS_NLOS(self, LOS_NLOS):
         self.LOS_NLOS = LOS_NLOS
+        self.interp_fir_filter_xxx_0.set_taps([self.LOS_NLOS]+(([0]*self.fading_1)+[self.amp_1])+(([0]*self.fading_2)+[self.amp_2])+(([0]*self.fading_3)+[self.amp_3]))
 
 
 
diff --git a/simulation/QAM_Fading/qam_fading_V2.grc b/simulation/QAM_Fading/qam_fading_V2.grc
index 5ab2545..3bfc382 100644
--- a/simulation/QAM_Fading/qam_fading_V2.grc
+++ b/simulation/QAM_Fading/qam_fading_V2.grc
@@ -797,7 +797,7 @@ blocks:
     bus_sink: false
     bus_source: false
     bus_structure: null
-    coordinate: [1000, 340.0]
+    coordinate: [1000, 348.0]
     rotation: 0
     state: enabled
 - name: params
diff --git a/simulation/QAM_Fading/qam_fading_V2_eigerner_block.grc b/simulation/QAM_Fading/qam_fading_V2_eigerner_block.grc
index 359e3d0..3b2c926 100644
--- a/simulation/QAM_Fading/qam_fading_V2_eigerner_block.grc
+++ b/simulation/QAM_Fading/qam_fading_V2_eigerner_block.grc
@@ -10,7 +10,7 @@ options:
     gen_linking: dynamic
     generate_options: qt_gui
     hier_block_src_path: '.:'
-    id: qam_fading
+    id: qam_fading_block
     max_nouts: '0'
     output_language: python
     placement: (0,0)
@@ -859,41 +859,85 @@ blocks:
       \ GRC will instantiate the first class it finds\nto get ports and parameters\
       \ of your block. The arguments to __init__  will\nbe the parameters. All of\
       \ them are required to have default values!\n\"\"\"\n\nimport numpy as np\n\
-      from gnuradio import gr\n\n\nclass blk(gr.sync_block):  # other base classes\
-      \ are basic_block, decim_block, interp_block\n    \"\"\"Embedded Python Block\
-      \ example - a simple multiply const\"\"\"\n\n    def __init__(self, amplitudes=[],\
-      \ delays=[]):  # only default arguments here\n        \"\"\"arguments to this\
-      \ function show up as parameters in GRC\"\"\"\n        gr.sync_block.__init__(\n\
-      \            self,\n            name='Embedded Python Block',   # will show\
-      \ up in GRC\n            in_sig=[np.complex64],\n            out_sig=[np.complex64]\n\
-      \        )\n        # if an attribute with the same name as a parameter is found,\n\
-      \        # a callback is registered (properties work, too).\n        self.amplitues\
-      \ = amplitudes\n        self.delays = delays\n\n        #self.fir = \n\n   \
-      \ def work(self, input_items, output_items):\n        \"\"\"example: multiply\
-      \ with constant\"\"\"\n        inp = input_items[0]\n        oup = output_items[0]\n\
-      \        amplitudes = [0.2, 0.5 ,0.8]\n        delays = [3,5,2]\n        i =\
-      \ len(amplitudes)\n\n        outp[:] = [([1]+[0 for n in range (0,delays[i])]+[amplitudes[i]])\
-      \ for i in range(0,i)]\n\n        return len(output_items[0])\n\n\nif __name__\
-      \ == '__main__':\n    ampl = [0.2, 0.5 ,0.8]\n    delays = [3,5,2]\n    i =\
-      \ len(ampl)\n    [([1]+[0 for n in range (0,delays[i])]+[ampl[i]]) for i in\
-      \ range(0,i)]\n\n\n"
+      from numpy.fft import fft,ifft,fftshift\nfrom gnuradio import gr\n\n\nclass\
+      \ blk(gr.sync_block):  # other base classes are basic_block, decim_block, interp_block\n\
+      \    \"\"\"Embedded Python Block example - a simple multiply const\"\"\"\n\n\
+      \    def __init__(self, amplitudes=[], delays=[], los=True):  # only default\
+      \ arguments here\n        \"\"\"arguments to this function show up as parameters\
+      \ in GRC\"\"\"\n        gr.sync_block.__init__(\n            self,\n       \
+      \     name='Embedded Python Block',   # will show up in GRC\n            in_sig=[np.complex64],\n\
+      \            out_sig=[np.complex64]\n        )\n        # if an attribute with\
+      \ the same name as a parameter is found,\n        # a callback is registered\
+      \ (properties work, too).\n        self.amplitudes = amplitudes\n        self.delays\
+      \ = delays\n        self.temp = [0]\n        if los:\n            self.amplitudes.append(1)\n\
+      \            self.delays.append(0)\n        #self.fir = \n\n    def work(self,\
+      \ input_items, output_items):\n        \"\"\"example: multiply with constant\"\
+      \"\"\n        inp = input_items[0]\n        oup = output_items[0]\n        \n\
+      \        if len(self.amplitudes) != len(self.delays):\n            raise Exception(\"\
+      Amplitudes and Delay length dont match\")\n\n        #    raise Exception(\"\
+      Delay length can't be one\")\n        #if np.min(self.delays)<=1:\n        #\
+      \    raise Exception(\"Delay length can't be one\")\n        max_len = np.max(self.delays)\n\
+      \        sum_x = np.zeros(max_len)\n        for(a,d) in zip(self.amplitudes,self.delays):\n\
+      \            if d-1 <= 0:\n                x = np.concatenate([[a], np.zeros(max_len-1)])\n\
+      \            else:                \n                x = np.concatenate([np.zeros(d-1),\
+      \ [a], np.zeros(max_len-d)])\n            sum_x += x\n        \n\n        H_int\
+      \ = fft(sum_x)\n        h = ifft(H_int)\n\n\n\n        y = np.convolve(inp,\
+      \ h)\n        y+=np.concatenate([self.temp,np.zeros(len(y)-len(self.temp))])\n\
+      \n        oup[:] = y[:len(inp)]\n        self.temp = y[len(inp):]        \n\
+      \        \n\n        return len(oup)"
     affinity: ''
     alias: ''
-    amplitudes: '[0.2, 0.5 ,0.8]'
+    amplitudes: '[0.3]'
     comment: ''
-    delays: '[3,5,2]'
+    delays: '[3]'
+    los: 'True'
     maxoutbuf: '0'
     minoutbuf: '0'
   states:
     _io_cache: ('Embedded Python Block', 'blk', [('amplitudes', '[]'), ('delays',
-      '[]')], [('0', 'complex', 1)], [('0', 'complex', 1)], 'Embedded Python Block
-      example - a simple multiply const', ['delays'])
+      '[]'), ('los', 'True')], [('0', 'complex', 1)], [('0', 'complex', 1)], 'Embedded
+      Python Block example - a simple multiply const', ['amplitudes', 'delays'])
     bus_sink: false
     bus_source: false
     bus_structure: null
-    coordinate: [992, 340.0]
+    coordinate: [960, 308.0]
     rotation: 0
     state: true
+- name: epy_block_1
+  id: epy_block
+  parameters:
+    _source_code: "\"\"\"\nEmbedded Python Blocks:\n\nEach time this file is saved,\
+      \ GRC will instantiate the first class it finds\nto get ports and parameters\
+      \ of your block. The arguments to __init__  will\nbe the parameters. All of\
+      \ them are required to have default values!\n\"\"\"\n\nimport numpy as np\n\
+      from gnuradio import gr\n\n\nclass blk(gr.sync_block):  # other base classes\
+      \ are basic_block, decim_block, interp_block\n    \"\"\"Embedded Python Block\
+      \ example - a simple multiply const\"\"\"\n\n    def __init__(self, example_param=1.0):\
+      \  # only default arguments here\n        \"\"\"arguments to this function show\
+      \ up as parameters in GRC\"\"\"\n        gr.sync_block.__init__(\n         \
+      \   self,\n            name='Embedded Python Block',   # will show up in GRC\n\
+      \            in_sig=[np.complex64],\n            out_sig=[np.complex64]\n  \
+      \      )\n        # if an attribute with the same name as a parameter is found,\n\
+      \        # a callback is registered (properties work, too).\n        self.example_param\
+      \ = example_param\n\n    def work(self, input_items, output_items):\n      \
+      \  \"\"\"example: multiply with constant\"\"\"\n        output_items[0][:] =\
+      \ input_items[0] * self.example_param\n        return len(output_items[0])\n"
+    affinity: ''
+    alias: ''
+    comment: ''
+    example_param: ''
+    maxoutbuf: '0'
+    minoutbuf: '0'
+  states:
+    _io_cache: ('Embedded Python Block', 'blk', [('example_param', '1.0')], [('0',
+      'complex', 1)], [('0', 'complex', 1)], 'Embedded Python Block example - a simple
+      multiply const', ['example_param'])
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [984, 284.0]
+    rotation: 0
+    state: disabled
 - name: import_0
   id: import
   parameters:
diff --git a/simulation/QAM_Fading/qam_fading_block.py b/simulation/QAM_Fading/qam_fading_block.py
new file mode 100755
index 0000000..52f5fe3
--- /dev/null
+++ b/simulation/QAM_Fading/qam_fading_block.py
@@ -0,0 +1,825 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+#
+# SPDX-License-Identifier: GPL-3.0
+#
+# GNU Radio Python Flow Graph
+# Title: QAM mit Fading
+# Author: Pross Naoki, Halter Sara Cinzia
+# GNU Radio version: 3.8.2.0
+
+from distutils.version import StrictVersion
+
+if __name__ == '__main__':
+    import ctypes
+    import sys
+    if sys.platform.startswith('linux'):
+        try:
+            x11 = ctypes.cdll.LoadLibrary('libX11.so')
+            x11.XInitThreads()
+        except:
+            print("Warning: failed to XInitThreads()")
+
+from PyQt5 import Qt
+from gnuradio import qtgui
+from gnuradio.filter import firdes
+import sip
+from gnuradio import blocks
+import numpy
+from gnuradio import channels
+from gnuradio import digital
+from gnuradio import gr
+import sys
+import signal
+from argparse import ArgumentParser
+from gnuradio.eng_arg import eng_float, intx
+from gnuradio import eng_notation
+from gnuradio.qtgui import Range, RangeWidget
+import epy_block_0
+import numpy as np
+
+from gnuradio import qtgui
+
+class qam_fading_block(gr.top_block, Qt.QWidget):
+
+    def __init__(self):
+        gr.top_block.__init__(self, "QAM mit Fading")
+        Qt.QWidget.__init__(self)
+        self.setWindowTitle("QAM mit Fading")
+        qtgui.util.check_set_qss()
+        try:
+            self.setWindowIcon(Qt.QIcon.fromTheme('gnuradio-grc'))
+        except:
+            pass
+        self.top_scroll_layout = Qt.QVBoxLayout()
+        self.setLayout(self.top_scroll_layout)
+        self.top_scroll = Qt.QScrollArea()
+        self.top_scroll.setFrameStyle(Qt.QFrame.NoFrame)
+        self.top_scroll_layout.addWidget(self.top_scroll)
+        self.top_scroll.setWidgetResizable(True)
+        self.top_widget = Qt.QWidget()
+        self.top_scroll.setWidget(self.top_widget)
+        self.top_layout = Qt.QVBoxLayout(self.top_widget)
+        self.top_grid_layout = Qt.QGridLayout()
+        self.top_layout.addLayout(self.top_grid_layout)
+
+        self.settings = Qt.QSettings("GNU Radio", "qam_fading_block")
+
+        try:
+            if StrictVersion(Qt.qVersion()) < StrictVersion("5.0.0"):
+                self.restoreGeometry(self.settings.value("geometry").toByteArray())
+            else:
+                self.restoreGeometry(self.settings.value("geometry"))
+        except:
+            pass
+
+        ##################################################
+        # Variables
+        ##################################################
+        self.sps = sps = 4
+        self.nfilts = nfilts = 32
+        self.excess_bw = excess_bw = 350e-3
+        self.timing_loop_bw = timing_loop_bw = 2 * 3.141592653589793 / 100
+        self.time_offset = time_offset = 1.0
+        self.samp_rate = samp_rate = 32000
+        self.rrc_taps = rrc_taps = firdes.root_raised_cosine(nfilts, nfilts, 1.0/float(sps), excess_bw, 45*nfilts)
+        self.phase_bw = phase_bw = 2 * 3.141592653589793 / 100
+        self.noise_volt = noise_volt = 0.0001
+        self.freq_offset = freq_offset = 0
+        self.fading_3 = fading_3 = 0
+        self.fading_2 = fading_2 = 0
+        self.fading_1 = fading_1 = 2
+        self.eq_ntaps = eq_ntaps = 15
+        self.eq_mod = eq_mod = 1
+        self.eq_gain = eq_gain = .01
+        self.const = const = digital.constellation_16qam().base()
+        self.chn_taps = chn_taps = [1.0 + 0.0j, ]
+        self.amp_3 = amp_3 = 0
+        self.amp_2 = amp_2 = 0
+        self.amp_1 = amp_1 = 0.2
+        self.LOS_NLOS = LOS_NLOS = 1
+
+        ##################################################
+        # Blocks
+        ##################################################
+        self.params = Qt.QTabWidget()
+        self.params_widget_0 = Qt.QWidget()
+        self.params_layout_0 = Qt.QBoxLayout(Qt.QBoxLayout.TopToBottom, self.params_widget_0)
+        self.params_grid_layout_0 = Qt.QGridLayout()
+        self.params_layout_0.addLayout(self.params_grid_layout_0)
+        self.params.addTab(self.params_widget_0, 'Channel')
+        self.params_widget_1 = Qt.QWidget()
+        self.params_layout_1 = Qt.QBoxLayout(Qt.QBoxLayout.TopToBottom, self.params_widget_1)
+        self.params_grid_layout_1 = Qt.QGridLayout()
+        self.params_layout_1.addLayout(self.params_grid_layout_1)
+        self.params.addTab(self.params_widget_1, 'Receiver')
+        self.params_widget_2 = Qt.QWidget()
+        self.params_layout_2 = Qt.QBoxLayout(Qt.QBoxLayout.TopToBottom, self.params_widget_2)
+        self.params_grid_layout_2 = Qt.QGridLayout()
+        self.params_layout_2.addLayout(self.params_grid_layout_2)
+        self.params.addTab(self.params_widget_2, 'Fading')
+        self.top_grid_layout.addWidget(self.params)
+        self._timing_loop_bw_range = Range(0, 200e-3, 10e-3, 2 * 3.141592653589793 / 100, 200)
+        self._timing_loop_bw_win = RangeWidget(self._timing_loop_bw_range, self.set_timing_loop_bw, 'Time Bandwidth', "counter_slider", float)
+        self.params_grid_layout_0.addWidget(self._timing_loop_bw_win, 1, 1, 1, 1)
+        for r in range(1, 2):
+            self.params_grid_layout_0.setRowStretch(r, 1)
+        for c in range(1, 2):
+            self.params_grid_layout_0.setColumnStretch(c, 1)
+        self._time_offset_range = Range(0.999, 1.001, 0.0001, 1.0, 200)
+        self._time_offset_win = RangeWidget(self._time_offset_range, self.set_time_offset, 'Timing Offset', "counter_slider", float)
+        self.params_grid_layout_0.addWidget(self._time_offset_win, 0, 1, 1, 1)
+        for r in range(0, 1):
+            self.params_grid_layout_0.setRowStretch(r, 1)
+        for c in range(1, 2):
+            self.params_grid_layout_0.setColumnStretch(c, 1)
+        self.plots = Qt.QTabWidget()
+        self.plots_widget_0 = Qt.QWidget()
+        self.plots_layout_0 = Qt.QBoxLayout(Qt.QBoxLayout.TopToBottom, self.plots_widget_0)
+        self.plots_grid_layout_0 = Qt.QGridLayout()
+        self.plots_layout_0.addLayout(self.plots_grid_layout_0)
+        self.plots.addTab(self.plots_widget_0, 'Constellations')
+        self.plots_widget_1 = Qt.QWidget()
+        self.plots_layout_1 = Qt.QBoxLayout(Qt.QBoxLayout.TopToBottom, self.plots_widget_1)
+        self.plots_grid_layout_1 = Qt.QGridLayout()
+        self.plots_layout_1.addLayout(self.plots_grid_layout_1)
+        self.plots.addTab(self.plots_widget_1, 'Frequency')
+        self.plots_widget_2 = Qt.QWidget()
+        self.plots_layout_2 = Qt.QBoxLayout(Qt.QBoxLayout.TopToBottom, self.plots_widget_2)
+        self.plots_grid_layout_2 = Qt.QGridLayout()
+        self.plots_layout_2.addLayout(self.plots_grid_layout_2)
+        self.plots.addTab(self.plots_widget_2, 'Time')
+        self.top_grid_layout.addWidget(self.plots)
+        self._phase_bw_range = Range(0, 1, .01, 2 * 3.141592653589793 / 100, 200)
+        self._phase_bw_win = RangeWidget(self._phase_bw_range, self.set_phase_bw, 'Phase Bandwidth', "counter_slider", float)
+        self.params_grid_layout_1.addWidget(self._phase_bw_win, 1, 0, 1, 1)
+        for r in range(1, 2):
+            self.params_grid_layout_1.setRowStretch(r, 1)
+        for c in range(0, 1):
+            self.params_grid_layout_1.setColumnStretch(c, 1)
+        self._noise_volt_range = Range(0, 1, 0.01, 0.0001, 200)
+        self._noise_volt_win = RangeWidget(self._noise_volt_range, self.set_noise_volt, 'Noise Voltage', "counter_slider", float)
+        self.params_grid_layout_0.addWidget(self._noise_volt_win, 0, 0, 1, 1)
+        for r in range(0, 1):
+            self.params_grid_layout_0.setRowStretch(r, 1)
+        for c in range(0, 1):
+            self.params_grid_layout_0.setColumnStretch(c, 1)
+        self._freq_offset_range = Range(-100e-3, 100e-3, 1e-3, 0, 200)
+        self._freq_offset_win = RangeWidget(self._freq_offset_range, self.set_freq_offset, 'Frequency Offset', "counter_slider", float)
+        self.params_grid_layout_0.addWidget(self._freq_offset_win, 1, 0, 1, 1)
+        for r in range(1, 2):
+            self.params_grid_layout_0.setRowStretch(r, 1)
+        for c in range(0, 1):
+            self.params_grid_layout_0.setColumnStretch(c, 1)
+        self._eq_gain_range = Range(0, .1, .001, .01, 200)
+        self._eq_gain_win = RangeWidget(self._eq_gain_range, self.set_eq_gain, 'Equalizer Rate', "counter_slider", float)
+        self.params_grid_layout_1.addWidget(self._eq_gain_win, 0, 0, 1, 1)
+        for r in range(0, 1):
+            self.params_grid_layout_1.setRowStretch(r, 1)
+        for c in range(0, 1):
+            self.params_grid_layout_1.setColumnStretch(c, 1)
+        self.qtgui_time_sink_x_0 = qtgui.time_sink_f(
+            1024, #size
+            samp_rate, #samp_rate
+            "Decoded", #name
+            3 #number of inputs
+        )
+        self.qtgui_time_sink_x_0.set_update_time(0.10)
+        self.qtgui_time_sink_x_0.set_y_axis(-1, 1)
+
+        self.qtgui_time_sink_x_0.set_y_label('Amplitude', "")
+
+        self.qtgui_time_sink_x_0.enable_tags(True)
+        self.qtgui_time_sink_x_0.set_trigger_mode(qtgui.TRIG_MODE_FREE, qtgui.TRIG_SLOPE_POS, 0.0, 0, 0, "")
+        self.qtgui_time_sink_x_0.enable_autoscale(False)
+        self.qtgui_time_sink_x_0.enable_grid(False)
+        self.qtgui_time_sink_x_0.enable_axis_labels(True)
+        self.qtgui_time_sink_x_0.enable_control_panel(False)
+        self.qtgui_time_sink_x_0.enable_stem_plot(False)
+
+
+        labels = ['Received', 'Sent', 'Signal 3', 'Signal 4', 'Signal 5',
+            'Signal 6', 'Signal 7', 'Signal 8', 'Signal 9', 'Signal 10']
+        widths = [1, 1, 1, 1, 1,
+            1, 1, 1, 1, 1]
+        colors = ['blue', 'red', 'green', 'black', 'cyan',
+            'magenta', 'yellow', 'dark red', 'dark green', 'dark blue']
+        alphas = [1.0, 1.0, 1.0, 1.0, 1.0,
+            1.0, 1.0, 1.0, 1.0, 1.0]
+        styles = [1, 1, 1, 1, 1,
+            1, 1, 1, 1, 1]
+        markers = [-1, -1, -1, -1, -1,
+            -1, -1, -1, -1, -1]
+
+
+        for i in range(3):
+            if len(labels[i]) == 0:
+                self.qtgui_time_sink_x_0.set_line_label(i, "Data {0}".format(i))
+            else:
+                self.qtgui_time_sink_x_0.set_line_label(i, labels[i])
+            self.qtgui_time_sink_x_0.set_line_width(i, widths[i])
+            self.qtgui_time_sink_x_0.set_line_color(i, colors[i])
+            self.qtgui_time_sink_x_0.set_line_style(i, styles[i])
+            self.qtgui_time_sink_x_0.set_line_marker(i, markers[i])
+            self.qtgui_time_sink_x_0.set_line_alpha(i, alphas[i])
+
+        self._qtgui_time_sink_x_0_win = sip.wrapinstance(self.qtgui_time_sink_x_0.pyqwidget(), Qt.QWidget)
+        self.plots_grid_layout_2.addWidget(self._qtgui_time_sink_x_0_win, 0, 0, 1, 1)
+        for r in range(0, 1):
+            self.plots_grid_layout_2.setRowStretch(r, 1)
+        for c in range(0, 1):
+            self.plots_grid_layout_2.setColumnStretch(c, 1)
+        self.qtgui_freq_sink_x_2_1 = qtgui.freq_sink_f(
+            1024, #size
+            firdes.WIN_BLACKMAN_hARRIS, #wintype
+            0, #fc
+            samp_rate, #bw
+            "", #name
+            2
+        )
+        self.qtgui_freq_sink_x_2_1.set_update_time(0.10)
+        self.qtgui_freq_sink_x_2_1.set_y_axis(-140, 10)
+        self.qtgui_freq_sink_x_2_1.set_y_label('Relative Gain', 'dB')
+        self.qtgui_freq_sink_x_2_1.set_trigger_mode(qtgui.TRIG_MODE_FREE, 0.0, 0, "")
+        self.qtgui_freq_sink_x_2_1.enable_autoscale(False)
+        self.qtgui_freq_sink_x_2_1.enable_grid(False)
+        self.qtgui_freq_sink_x_2_1.set_fft_average(1.0)
+        self.qtgui_freq_sink_x_2_1.enable_axis_labels(True)
+        self.qtgui_freq_sink_x_2_1.enable_control_panel(False)
+
+
+        self.qtgui_freq_sink_x_2_1.set_plot_pos_half(not True)
+
+        labels = ['Fading', '', '', '', '',
+            '', '', '', '', '']
+        widths = [1, 1, 1, 1, 1,
+            1, 1, 1, 1, 1]
+        colors = ["blue", "red", "green", "black", "cyan",
+            "magenta", "yellow", "dark red", "dark green", "dark blue"]
+        alphas = [1.0, 1.0, 1.0, 1.0, 1.0,
+            1.0, 1.0, 1.0, 1.0, 1.0]
+
+        for i in range(2):
+            if len(labels[i]) == 0:
+                self.qtgui_freq_sink_x_2_1.set_line_label(i, "Data {0}".format(i))
+            else:
+                self.qtgui_freq_sink_x_2_1.set_line_label(i, labels[i])
+            self.qtgui_freq_sink_x_2_1.set_line_width(i, widths[i])
+            self.qtgui_freq_sink_x_2_1.set_line_color(i, colors[i])
+            self.qtgui_freq_sink_x_2_1.set_line_alpha(i, alphas[i])
+
+        self._qtgui_freq_sink_x_2_1_win = sip.wrapinstance(self.qtgui_freq_sink_x_2_1.pyqwidget(), Qt.QWidget)
+        self.plots_grid_layout_1.addWidget(self._qtgui_freq_sink_x_2_1_win, 1, 0, 1, 1)
+        for r in range(1, 2):
+            self.plots_grid_layout_1.setRowStretch(r, 1)
+        for c in range(0, 1):
+            self.plots_grid_layout_1.setColumnStretch(c, 1)
+        self.qtgui_freq_sink_x_0 = qtgui.freq_sink_c(
+            1024, #size
+            firdes.WIN_BLACKMAN_hARRIS, #wintype
+            0, #fc
+            samp_rate, #bw
+            "Channel", #name
+            2
+        )
+        self.qtgui_freq_sink_x_0.set_update_time(0.10)
+        self.qtgui_freq_sink_x_0.set_y_axis(-140, 10)
+        self.qtgui_freq_sink_x_0.set_y_label('Relative Gain', 'dB')
+        self.qtgui_freq_sink_x_0.set_trigger_mode(qtgui.TRIG_MODE_FREE, 0.0, 0, "")
+        self.qtgui_freq_sink_x_0.enable_autoscale(False)
+        self.qtgui_freq_sink_x_0.enable_grid(False)
+        self.qtgui_freq_sink_x_0.set_fft_average(1.0)
+        self.qtgui_freq_sink_x_0.enable_axis_labels(True)
+        self.qtgui_freq_sink_x_0.enable_control_panel(False)
+
+
+
+        labels = ['Fading', '', '', '', '',
+            '', '', '', '', '']
+        widths = [1, 1, 1, 1, 1,
+            1, 1, 1, 1, 1]
+        colors = ["blue", "red", "green", "black", "cyan",
+            "magenta", "yellow", "dark red", "dark green", "dark blue"]
+        alphas = [1.0, 1.0, 1.0, 1.0, 1.0,
+            1.0, 1.0, 1.0, 1.0, 1.0]
+
+        for i in range(2):
+            if len(labels[i]) == 0:
+                self.qtgui_freq_sink_x_0.set_line_label(i, "Data {0}".format(i))
+            else:
+                self.qtgui_freq_sink_x_0.set_line_label(i, labels[i])
+            self.qtgui_freq_sink_x_0.set_line_width(i, widths[i])
+            self.qtgui_freq_sink_x_0.set_line_color(i, colors[i])
+            self.qtgui_freq_sink_x_0.set_line_alpha(i, alphas[i])
+
+        self._qtgui_freq_sink_x_0_win = sip.wrapinstance(self.qtgui_freq_sink_x_0.pyqwidget(), Qt.QWidget)
+        self.plots_grid_layout_1.addWidget(self._qtgui_freq_sink_x_0_win, 0, 0, 1, 1)
+        for r in range(0, 1):
+            self.plots_grid_layout_1.setRowStretch(r, 1)
+        for c in range(0, 1):
+            self.plots_grid_layout_1.setColumnStretch(c, 1)
+        self.qtgui_const_sink_x_2 = qtgui.const_sink_c(
+            1024, #size
+            "Locked", #name
+            2 #number of inputs
+        )
+        self.qtgui_const_sink_x_2.set_update_time(0.10)
+        self.qtgui_const_sink_x_2.set_y_axis(-2, 2)
+        self.qtgui_const_sink_x_2.set_x_axis(-2, 2)
+        self.qtgui_const_sink_x_2.set_trigger_mode(qtgui.TRIG_MODE_FREE, qtgui.TRIG_SLOPE_POS, 0.0, 0, "")
+        self.qtgui_const_sink_x_2.enable_autoscale(False)
+        self.qtgui_const_sink_x_2.enable_grid(False)
+        self.qtgui_const_sink_x_2.enable_axis_labels(True)
+
+
+        labels = ['fading', 'normal', '', '', '',
+            '', '', '', '', '']
+        widths = [1, 1, 1, 1, 1,
+            1, 1, 1, 1, 1]
+        colors = ["blue", "red", "red", "red", "red",
+            "red", "red", "red", "red", "red"]
+        styles = [0, 0, 0, 0, 0,
+            0, 0, 0, 0, 0]
+        markers = [0, 0, 0, 0, 0,
+            0, 0, 0, 0, 0]
+        alphas = [1.0, 1.0, 1.0, 1.0, 1.0,
+            1.0, 1.0, 1.0, 1.0, 1.0]
+
+        for i in range(2):
+            if len(labels[i]) == 0:
+                self.qtgui_const_sink_x_2.set_line_label(i, "Data {0}".format(i))
+            else:
+                self.qtgui_const_sink_x_2.set_line_label(i, labels[i])
+            self.qtgui_const_sink_x_2.set_line_width(i, widths[i])
+            self.qtgui_const_sink_x_2.set_line_color(i, colors[i])
+            self.qtgui_const_sink_x_2.set_line_style(i, styles[i])
+            self.qtgui_const_sink_x_2.set_line_marker(i, markers[i])
+            self.qtgui_const_sink_x_2.set_line_alpha(i, alphas[i])
+
+        self._qtgui_const_sink_x_2_win = sip.wrapinstance(self.qtgui_const_sink_x_2.pyqwidget(), Qt.QWidget)
+        self.plots_grid_layout_0.addWidget(self._qtgui_const_sink_x_2_win, 1, 1, 1, 1)
+        for r in range(1, 2):
+            self.plots_grid_layout_0.setRowStretch(r, 1)
+        for c in range(1, 2):
+            self.plots_grid_layout_0.setColumnStretch(c, 1)
+        self.qtgui_const_sink_x_1 = qtgui.const_sink_c(
+            1024, #size
+            "Equalized", #name
+            2 #number of inputs
+        )
+        self.qtgui_const_sink_x_1.set_update_time(0.10)
+        self.qtgui_const_sink_x_1.set_y_axis(-2, 2)
+        self.qtgui_const_sink_x_1.set_x_axis(-2, 2)
+        self.qtgui_const_sink_x_1.set_trigger_mode(qtgui.TRIG_MODE_FREE, qtgui.TRIG_SLOPE_POS, 0.0, 0, "")
+        self.qtgui_const_sink_x_1.enable_autoscale(False)
+        self.qtgui_const_sink_x_1.enable_grid(False)
+        self.qtgui_const_sink_x_1.enable_axis_labels(True)
+
+
+        labels = ['fading', 'normal', '', '', '',
+            '', '', '', '', '']
+        widths = [1, 1, 1, 1, 1,
+            1, 1, 1, 1, 1]
+        colors = ["blue", "red", "red", "red", "red",
+            "red", "red", "red", "red", "red"]
+        styles = [0, 0, 0, 0, 0,
+            0, 0, 0, 0, 0]
+        markers = [0, 0, 0, 0, 0,
+            0, 0, 0, 0, 0]
+        alphas = [1.0, 1.0, 1.0, 1.0, 1.0,
+            1.0, 1.0, 1.0, 1.0, 1.0]
+
+        for i in range(2):
+            if len(labels[i]) == 0:
+                self.qtgui_const_sink_x_1.set_line_label(i, "Data {0}".format(i))
+            else:
+                self.qtgui_const_sink_x_1.set_line_label(i, labels[i])
+            self.qtgui_const_sink_x_1.set_line_width(i, widths[i])
+            self.qtgui_const_sink_x_1.set_line_color(i, colors[i])
+            self.qtgui_const_sink_x_1.set_line_style(i, styles[i])
+            self.qtgui_const_sink_x_1.set_line_marker(i, markers[i])
+            self.qtgui_const_sink_x_1.set_line_alpha(i, alphas[i])
+
+        self._qtgui_const_sink_x_1_win = sip.wrapinstance(self.qtgui_const_sink_x_1.pyqwidget(), Qt.QWidget)
+        self.plots_grid_layout_0.addWidget(self._qtgui_const_sink_x_1_win, 1, 0, 1, 1)
+        for r in range(1, 2):
+            self.plots_grid_layout_0.setRowStretch(r, 1)
+        for c in range(0, 1):
+            self.plots_grid_layout_0.setColumnStretch(c, 1)
+        self.qtgui_const_sink_x_0_0 = qtgui.const_sink_c(
+            2048, #size
+            "Synchronized", #name
+            2 #number of inputs
+        )
+        self.qtgui_const_sink_x_0_0.set_update_time(0.10)
+        self.qtgui_const_sink_x_0_0.set_y_axis(-2, 2)
+        self.qtgui_const_sink_x_0_0.set_x_axis(-2, 2)
+        self.qtgui_const_sink_x_0_0.set_trigger_mode(qtgui.TRIG_MODE_FREE, qtgui.TRIG_SLOPE_POS, 0.0, 0, "")
+        self.qtgui_const_sink_x_0_0.enable_autoscale(False)
+        self.qtgui_const_sink_x_0_0.enable_grid(False)
+        self.qtgui_const_sink_x_0_0.enable_axis_labels(True)
+
+
+        labels = ['fading', 'normal', '', '', '',
+            '', '', '', '', '']
+        widths = [1, 1, 1, 1, 1,
+            1, 1, 1, 1, 1]
+        colors = ["blue", "red", "red", "red", "red",
+            "red", "red", "red", "red", "red"]
+        styles = [0, 0, 0, 0, 0,
+            0, 0, 0, 0, 0]
+        markers = [0, 0, 0, 0, 0,
+            0, 0, 0, 0, 0]
+        alphas = [1.0, 1.0, 1.0, 1.0, 1.0,
+            1.0, 1.0, 1.0, 1.0, 1.0]
+
+        for i in range(2):
+            if len(labels[i]) == 0:
+                self.qtgui_const_sink_x_0_0.set_line_label(i, "Data {0}".format(i))
+            else:
+                self.qtgui_const_sink_x_0_0.set_line_label(i, labels[i])
+            self.qtgui_const_sink_x_0_0.set_line_width(i, widths[i])
+            self.qtgui_const_sink_x_0_0.set_line_color(i, colors[i])
+            self.qtgui_const_sink_x_0_0.set_line_style(i, styles[i])
+            self.qtgui_const_sink_x_0_0.set_line_marker(i, markers[i])
+            self.qtgui_const_sink_x_0_0.set_line_alpha(i, alphas[i])
+
+        self._qtgui_const_sink_x_0_0_win = sip.wrapinstance(self.qtgui_const_sink_x_0_0.pyqwidget(), Qt.QWidget)
+        self.plots_grid_layout_0.addWidget(self._qtgui_const_sink_x_0_0_win, 0, 1, 1, 1)
+        for r in range(0, 1):
+            self.plots_grid_layout_0.setRowStretch(r, 1)
+        for c in range(1, 2):
+            self.plots_grid_layout_0.setColumnStretch(c, 1)
+        self.qtgui_const_sink_x_0 = qtgui.const_sink_c(
+            2048, #size
+            "Channel", #name
+            2 #number of inputs
+        )
+        self.qtgui_const_sink_x_0.set_update_time(0.10)
+        self.qtgui_const_sink_x_0.set_y_axis(-2, 2)
+        self.qtgui_const_sink_x_0.set_x_axis(-2, 2)
+        self.qtgui_const_sink_x_0.set_trigger_mode(qtgui.TRIG_MODE_FREE, qtgui.TRIG_SLOPE_POS, 0.0, 0, "")
+        self.qtgui_const_sink_x_0.enable_autoscale(False)
+        self.qtgui_const_sink_x_0.enable_grid(False)
+        self.qtgui_const_sink_x_0.enable_axis_labels(True)
+
+
+        labels = ['fading', 'normal', '', '', '',
+            '', '', '', '', '']
+        widths = [1, 1, 1, 1, 1,
+            1, 1, 1, 1, 1]
+        colors = ["blue", "red", "red", "red", "red",
+            "red", "red", "red", "red", "red"]
+        styles = [0, 0, 0, 0, 0,
+            0, 0, 0, 0, 0]
+        markers = [0, 0, 0, 0, 0,
+            0, 0, 0, 0, 0]
+        alphas = [1.0, 1.0, 1.0, 1.0, 1.0,
+            1.0, 1.0, 1.0, 1.0, 1.0]
+
+        for i in range(2):
+            if len(labels[i]) == 0:
+                self.qtgui_const_sink_x_0.set_line_label(i, "Data {0}".format(i))
+            else:
+                self.qtgui_const_sink_x_0.set_line_label(i, labels[i])
+            self.qtgui_const_sink_x_0.set_line_width(i, widths[i])
+            self.qtgui_const_sink_x_0.set_line_color(i, colors[i])
+            self.qtgui_const_sink_x_0.set_line_style(i, styles[i])
+            self.qtgui_const_sink_x_0.set_line_marker(i, markers[i])
+            self.qtgui_const_sink_x_0.set_line_alpha(i, alphas[i])
+
+        self._qtgui_const_sink_x_0_win = sip.wrapinstance(self.qtgui_const_sink_x_0.pyqwidget(), Qt.QWidget)
+        self.plots_grid_layout_0.addWidget(self._qtgui_const_sink_x_0_win, 0, 0, 1, 1)
+        for r in range(0, 1):
+            self.plots_grid_layout_0.setRowStretch(r, 1)
+        for c in range(0, 1):
+            self.plots_grid_layout_0.setColumnStretch(c, 1)
+        self._fading_3_range = Range(0, 30, 1, 0, 200)
+        self._fading_3_win = RangeWidget(self._fading_3_range, self.set_fading_3, 'Fading 3', "counter_slider", int)
+        self.params_grid_layout_2.addWidget(self._fading_3_win, 3, 0, 1, 1)
+        for r in range(3, 4):
+            self.params_grid_layout_2.setRowStretch(r, 1)
+        for c in range(0, 1):
+            self.params_grid_layout_2.setColumnStretch(c, 1)
+        self._fading_2_range = Range(0, 30, 1, 0, 200)
+        self._fading_2_win = RangeWidget(self._fading_2_range, self.set_fading_2, 'Fading 2', "counter_slider", int)
+        self.params_grid_layout_2.addWidget(self._fading_2_win, 2, 0, 1, 1)
+        for r in range(2, 3):
+            self.params_grid_layout_2.setRowStretch(r, 1)
+        for c in range(0, 1):
+            self.params_grid_layout_2.setColumnStretch(c, 1)
+        self._fading_1_range = Range(1, 30, 1, 2, 200)
+        self._fading_1_win = RangeWidget(self._fading_1_range, self.set_fading_1, 'Fading', "counter_slider", int)
+        self.params_grid_layout_2.addWidget(self._fading_1_win, 1, 0, 1, 1)
+        for r in range(1, 2):
+            self.params_grid_layout_2.setRowStretch(r, 1)
+        for c in range(0, 1):
+            self.params_grid_layout_2.setColumnStretch(c, 1)
+        self.epy_block_0 = epy_block_0.blk(amplitudes=[0.3], delays=[3], los=True)
+        self.digital_pfb_clock_sync_xxx_0_0 = digital.pfb_clock_sync_ccf(sps , timing_loop_bw, rrc_taps, nfilts, nfilts/2, 1.5, 1)
+        self.digital_pfb_clock_sync_xxx_0 = digital.pfb_clock_sync_ccf(sps, timing_loop_bw, rrc_taps, nfilts, nfilts/2, 1.5, 1)
+        self.digital_map_bb_0_0 = digital.map_bb([0, 1, 3, 2])
+        self.digital_map_bb_0 = digital.map_bb([0, 1, 3, 2])
+        self.digital_diff_decoder_bb_0_0 = digital.diff_decoder_bb(4)
+        self.digital_diff_decoder_bb_0 = digital.diff_decoder_bb(4)
+        self.digital_costas_loop_cc_0_0 = digital.costas_loop_cc(phase_bw, 4, False)
+        self.digital_costas_loop_cc_0 = digital.costas_loop_cc(phase_bw, 4, False)
+        self.digital_constellation_modulator_0 = digital.generic_mod(
+            constellation=const,
+            differential=True,
+            samples_per_symbol=sps,
+            pre_diff_code=True,
+            excess_bw=excess_bw,
+            verbose=False,
+            log=False)
+        self.digital_constellation_decoder_cb_0_0 = digital.constellation_decoder_cb(const)
+        self.digital_constellation_decoder_cb_0 = digital.constellation_decoder_cb(const)
+        self.digital_cma_equalizer_cc_0_0 = digital.cma_equalizer_cc(eq_ntaps, eq_mod, eq_gain, 2)
+        self.digital_cma_equalizer_cc_0 = digital.cma_equalizer_cc(eq_ntaps, eq_mod, eq_gain, 2)
+        self.channels_channel_model_0 = channels.channel_model(
+            noise_voltage=noise_volt,
+            frequency_offset=freq_offset,
+            epsilon=time_offset,
+            taps=chn_taps,
+            noise_seed=0,
+            block_tags=False)
+        self.blocks_unpack_k_bits_bb_0_1 = blocks.unpack_k_bits_bb(2)
+        self.blocks_unpack_k_bits_bb_0_0 = blocks.unpack_k_bits_bb(2)
+        self.blocks_unpack_k_bits_bb_0 = blocks.unpack_k_bits_bb(2)
+        self.blocks_throttle_0 = blocks.throttle(gr.sizeof_gr_complex*1, samp_rate,True)
+        self.blocks_delay_0 = blocks.delay(gr.sizeof_float*1, 50)
+        self.blocks_char_to_float_0_1 = blocks.char_to_float(1, 1)
+        self.blocks_char_to_float_0_0 = blocks.char_to_float(1, 1)
+        self.blocks_char_to_float_0 = blocks.char_to_float(1, 1)
+        self.analog_random_source_x_0 = blocks.vector_source_b(list(map(int, numpy.random.randint(0, 256, 1000))), True)
+        self._amp_3_range = Range(0, 5, 0.1, 0, 200)
+        self._amp_3_win = RangeWidget(self._amp_3_range, self.set_amp_3, 'Ampliude 3', "counter_slider", float)
+        self.params_grid_layout_2.addWidget(self._amp_3_win, 3, 1, 1, 1)
+        for r in range(3, 4):
+            self.params_grid_layout_2.setRowStretch(r, 1)
+        for c in range(1, 2):
+            self.params_grid_layout_2.setColumnStretch(c, 1)
+        self._amp_2_range = Range(0, 5, 0.1, 0, 200)
+        self._amp_2_win = RangeWidget(self._amp_2_range, self.set_amp_2, 'Ampliude 2', "counter_slider", float)
+        self.params_grid_layout_2.addWidget(self._amp_2_win, 2, 1, 1, 1)
+        for r in range(2, 3):
+            self.params_grid_layout_2.setRowStretch(r, 1)
+        for c in range(1, 2):
+            self.params_grid_layout_2.setColumnStretch(c, 1)
+        self._amp_1_range = Range(0, 5, 0.1, 0.2, 200)
+        self._amp_1_win = RangeWidget(self._amp_1_range, self.set_amp_1, 'Ampliude', "counter_slider", float)
+        self.params_grid_layout_2.addWidget(self._amp_1_win, 1, 1, 1, 1)
+        for r in range(1, 2):
+            self.params_grid_layout_2.setRowStretch(r, 1)
+        for c in range(1, 2):
+            self.params_grid_layout_2.setColumnStretch(c, 1)
+        self._LOS_NLOS_range = Range(0, 1, 1, 1, 200)
+        self._LOS_NLOS_win = RangeWidget(self._LOS_NLOS_range, self.set_LOS_NLOS, 'LOS_NLOS', "counter_slider", int)
+        self.params_grid_layout_2.addWidget(self._LOS_NLOS_win, 0, 0, 1, 1)
+        for r in range(0, 1):
+            self.params_grid_layout_2.setRowStretch(r, 1)
+        for c in range(0, 1):
+            self.params_grid_layout_2.setColumnStretch(c, 1)
+
+
+
+        ##################################################
+        # Connections
+        ##################################################
+        self.connect((self.analog_random_source_x_0, 0), (self.blocks_unpack_k_bits_bb_0_0, 0))
+        self.connect((self.analog_random_source_x_0, 0), (self.digital_constellation_modulator_0, 0))
+        self.connect((self.blocks_char_to_float_0, 0), (self.qtgui_freq_sink_x_2_1, 0))
+        self.connect((self.blocks_char_to_float_0, 0), (self.qtgui_time_sink_x_0, 0))
+        self.connect((self.blocks_char_to_float_0_0, 0), (self.blocks_delay_0, 0))
+        self.connect((self.blocks_char_to_float_0_1, 0), (self.qtgui_freq_sink_x_2_1, 1))
+        self.connect((self.blocks_char_to_float_0_1, 0), (self.qtgui_time_sink_x_0, 2))
+        self.connect((self.blocks_delay_0, 0), (self.qtgui_time_sink_x_0, 1))
+        self.connect((self.blocks_throttle_0, 0), (self.channels_channel_model_0, 0))
+        self.connect((self.blocks_unpack_k_bits_bb_0, 0), (self.blocks_char_to_float_0, 0))
+        self.connect((self.blocks_unpack_k_bits_bb_0_0, 0), (self.blocks_char_to_float_0_0, 0))
+        self.connect((self.blocks_unpack_k_bits_bb_0_1, 0), (self.blocks_char_to_float_0_1, 0))
+        self.connect((self.channels_channel_model_0, 0), (self.digital_pfb_clock_sync_xxx_0_0, 0))
+        self.connect((self.channels_channel_model_0, 0), (self.epy_block_0, 0))
+        self.connect((self.channels_channel_model_0, 0), (self.qtgui_const_sink_x_0, 1))
+        self.connect((self.channels_channel_model_0, 0), (self.qtgui_freq_sink_x_0, 1))
+        self.connect((self.digital_cma_equalizer_cc_0, 0), (self.digital_costas_loop_cc_0, 0))
+        self.connect((self.digital_cma_equalizer_cc_0, 0), (self.qtgui_const_sink_x_1, 0))
+        self.connect((self.digital_cma_equalizer_cc_0_0, 0), (self.digital_costas_loop_cc_0_0, 0))
+        self.connect((self.digital_cma_equalizer_cc_0_0, 0), (self.qtgui_const_sink_x_1, 1))
+        self.connect((self.digital_constellation_decoder_cb_0, 0), (self.digital_diff_decoder_bb_0, 0))
+        self.connect((self.digital_constellation_decoder_cb_0_0, 0), (self.digital_diff_decoder_bb_0_0, 0))
+        self.connect((self.digital_constellation_modulator_0, 0), (self.blocks_throttle_0, 0))
+        self.connect((self.digital_costas_loop_cc_0, 0), (self.digital_constellation_decoder_cb_0, 0))
+        self.connect((self.digital_costas_loop_cc_0, 0), (self.qtgui_const_sink_x_2, 0))
+        self.connect((self.digital_costas_loop_cc_0_0, 0), (self.digital_constellation_decoder_cb_0_0, 0))
+        self.connect((self.digital_costas_loop_cc_0_0, 0), (self.qtgui_const_sink_x_2, 1))
+        self.connect((self.digital_diff_decoder_bb_0, 0), (self.digital_map_bb_0, 0))
+        self.connect((self.digital_diff_decoder_bb_0_0, 0), (self.digital_map_bb_0_0, 0))
+        self.connect((self.digital_map_bb_0, 0), (self.blocks_unpack_k_bits_bb_0, 0))
+        self.connect((self.digital_map_bb_0_0, 0), (self.blocks_unpack_k_bits_bb_0_1, 0))
+        self.connect((self.digital_pfb_clock_sync_xxx_0, 0), (self.digital_cma_equalizer_cc_0, 0))
+        self.connect((self.digital_pfb_clock_sync_xxx_0, 0), (self.qtgui_const_sink_x_0_0, 0))
+        self.connect((self.digital_pfb_clock_sync_xxx_0_0, 0), (self.digital_cma_equalizer_cc_0_0, 0))
+        self.connect((self.digital_pfb_clock_sync_xxx_0_0, 0), (self.qtgui_const_sink_x_0_0, 1))
+        self.connect((self.epy_block_0, 0), (self.digital_pfb_clock_sync_xxx_0, 0))
+        self.connect((self.epy_block_0, 0), (self.qtgui_const_sink_x_0, 0))
+        self.connect((self.epy_block_0, 0), (self.qtgui_freq_sink_x_0, 0))
+
+
+    def closeEvent(self, event):
+        self.settings = Qt.QSettings("GNU Radio", "qam_fading_block")
+        self.settings.setValue("geometry", self.saveGeometry())
+        event.accept()
+
+    def get_sps(self):
+        return self.sps
+
+    def set_sps(self, sps):
+        self.sps = sps
+        self.set_rrc_taps(firdes.root_raised_cosine(self.nfilts, self.nfilts, 1.0/float(self.sps), self.excess_bw, 45*self.nfilts))
+
+    def get_nfilts(self):
+        return self.nfilts
+
+    def set_nfilts(self, nfilts):
+        self.nfilts = nfilts
+        self.set_rrc_taps(firdes.root_raised_cosine(self.nfilts, self.nfilts, 1.0/float(self.sps), self.excess_bw, 45*self.nfilts))
+
+    def get_excess_bw(self):
+        return self.excess_bw
+
+    def set_excess_bw(self, excess_bw):
+        self.excess_bw = excess_bw
+        self.set_rrc_taps(firdes.root_raised_cosine(self.nfilts, self.nfilts, 1.0/float(self.sps), self.excess_bw, 45*self.nfilts))
+
+    def get_timing_loop_bw(self):
+        return self.timing_loop_bw
+
+    def set_timing_loop_bw(self, timing_loop_bw):
+        self.timing_loop_bw = timing_loop_bw
+        self.digital_pfb_clock_sync_xxx_0.set_loop_bandwidth(self.timing_loop_bw)
+        self.digital_pfb_clock_sync_xxx_0_0.set_loop_bandwidth(self.timing_loop_bw)
+
+    def get_time_offset(self):
+        return self.time_offset
+
+    def set_time_offset(self, time_offset):
+        self.time_offset = time_offset
+        self.channels_channel_model_0.set_timing_offset(self.time_offset)
+
+    def get_samp_rate(self):
+        return self.samp_rate
+
+    def set_samp_rate(self, samp_rate):
+        self.samp_rate = samp_rate
+        self.blocks_throttle_0.set_sample_rate(self.samp_rate)
+        self.qtgui_freq_sink_x_0.set_frequency_range(0, self.samp_rate)
+        self.qtgui_freq_sink_x_2_1.set_frequency_range(0, self.samp_rate)
+        self.qtgui_time_sink_x_0.set_samp_rate(self.samp_rate)
+
+    def get_rrc_taps(self):
+        return self.rrc_taps
+
+    def set_rrc_taps(self, rrc_taps):
+        self.rrc_taps = rrc_taps
+        self.digital_pfb_clock_sync_xxx_0.update_taps(self.rrc_taps)
+        self.digital_pfb_clock_sync_xxx_0_0.update_taps(self.rrc_taps)
+
+    def get_phase_bw(self):
+        return self.phase_bw
+
+    def set_phase_bw(self, phase_bw):
+        self.phase_bw = phase_bw
+        self.digital_costas_loop_cc_0.set_loop_bandwidth(self.phase_bw)
+        self.digital_costas_loop_cc_0_0.set_loop_bandwidth(self.phase_bw)
+
+    def get_noise_volt(self):
+        return self.noise_volt
+
+    def set_noise_volt(self, noise_volt):
+        self.noise_volt = noise_volt
+        self.channels_channel_model_0.set_noise_voltage(self.noise_volt)
+
+    def get_freq_offset(self):
+        return self.freq_offset
+
+    def set_freq_offset(self, freq_offset):
+        self.freq_offset = freq_offset
+        self.channels_channel_model_0.set_frequency_offset(self.freq_offset)
+
+    def get_fading_3(self):
+        return self.fading_3
+
+    def set_fading_3(self, fading_3):
+        self.fading_3 = fading_3
+
+    def get_fading_2(self):
+        return self.fading_2
+
+    def set_fading_2(self, fading_2):
+        self.fading_2 = fading_2
+
+    def get_fading_1(self):
+        return self.fading_1
+
+    def set_fading_1(self, fading_1):
+        self.fading_1 = fading_1
+
+    def get_eq_ntaps(self):
+        return self.eq_ntaps
+
+    def set_eq_ntaps(self, eq_ntaps):
+        self.eq_ntaps = eq_ntaps
+
+    def get_eq_mod(self):
+        return self.eq_mod
+
+    def set_eq_mod(self, eq_mod):
+        self.eq_mod = eq_mod
+        self.digital_cma_equalizer_cc_0.set_modulus(self.eq_mod)
+        self.digital_cma_equalizer_cc_0_0.set_modulus(self.eq_mod)
+
+    def get_eq_gain(self):
+        return self.eq_gain
+
+    def set_eq_gain(self, eq_gain):
+        self.eq_gain = eq_gain
+        self.digital_cma_equalizer_cc_0.set_gain(self.eq_gain)
+        self.digital_cma_equalizer_cc_0_0.set_gain(self.eq_gain)
+
+    def get_const(self):
+        return self.const
+
+    def set_const(self, const):
+        self.const = const
+
+    def get_chn_taps(self):
+        return self.chn_taps
+
+    def set_chn_taps(self, chn_taps):
+        self.chn_taps = chn_taps
+        self.channels_channel_model_0.set_taps(self.chn_taps)
+
+    def get_amp_3(self):
+        return self.amp_3
+
+    def set_amp_3(self, amp_3):
+        self.amp_3 = amp_3
+
+    def get_amp_2(self):
+        return self.amp_2
+
+    def set_amp_2(self, amp_2):
+        self.amp_2 = amp_2
+
+    def get_amp_1(self):
+        return self.amp_1
+
+    def set_amp_1(self, amp_1):
+        self.amp_1 = amp_1
+
+    def get_LOS_NLOS(self):
+        return self.LOS_NLOS
+
+    def set_LOS_NLOS(self, LOS_NLOS):
+        self.LOS_NLOS = LOS_NLOS
+
+
+
+
+
+def main(top_block_cls=qam_fading_block, options=None):
+    if gr.enable_realtime_scheduling() != gr.RT_OK:
+        print("Error: failed to enable real-time scheduling.")
+
+    if StrictVersion("4.5.0") <= StrictVersion(Qt.qVersion()) < StrictVersion("5.0.0"):
+        style = gr.prefs().get_string('qtgui', 'style', 'raster')
+        Qt.QApplication.setGraphicsSystem(style)
+    qapp = Qt.QApplication(sys.argv)
+
+    tb = top_block_cls()
+
+    tb.start()
+
+    tb.show()
+
+    def sig_handler(sig=None, frame=None):
+        Qt.QApplication.quit()
+
+    signal.signal(signal.SIGINT, sig_handler)
+    signal.signal(signal.SIGTERM, sig_handler)
+
+    timer = Qt.QTimer()
+    timer.start(500)
+    timer.timeout.connect(lambda: None)
+
+    def quitting():
+        tb.stop()
+        tb.wait()
+
+    qapp.aboutToQuit.connect(quitting)
+    qapp.exec_()
+
+if __name__ == '__main__':
+    main()