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authorNao Pross <np@0hm.ch>2021-10-04 17:34:20 +0200
committerNao Pross <np@0hm.ch>2021-10-04 17:34:20 +0200
commit26fe2c32536ae419cb9056b97772655071c8d52a (patch)
tree18ae312339d6d5d101f9be0f2924bfc13ca6a187
parentMerge branch 'master' of https://github.com/NaoPross/Fading (diff)
downloadFading-26fe2c32536ae419cb9056b97772655071c8d52a.tar.gz
Fading-26fe2c32536ae419cb9056b97772655071c8d52a.zip
Create first AM simulation
It implements the easiest, crappiest AM moulator.
Diffstat (limited to '')
-rw-r--r--tests/Simulation/Simluation.grc399
-rwxr-xr-xtests/Simulation/Simluation.py236
2 files changed, 635 insertions, 0 deletions
diff --git a/tests/Simulation/Simluation.grc b/tests/Simulation/Simluation.grc
new file mode 100644
index 0000000..2a40da6
--- /dev/null
+++ b/tests/Simulation/Simluation.grc
@@ -0,0 +1,399 @@
+options:
+ parameters:
+ author: Naoki Pross
+ category: '[GRC Hier Blocks]'
+ cmake_opt: ''
+ comment: ''
+ copyright: ''
+ description: ''
+ gen_cmake: 'On'
+ gen_linking: dynamic
+ generate_options: qt_gui
+ hier_block_src_path: '.:'
+ id: Simluation
+ max_nouts: '0'
+ output_language: python
+ placement: (0,0)
+ qt_qss_theme: ''
+ realtime_scheduling: '1'
+ run: 'True'
+ run_command: '{python} -u {filename}'
+ run_options: prompt
+ sizing_mode: fixed
+ thread_safe_setters: ''
+ title: Simulation of a fading channel
+ window_size: ''
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [8, 8]
+ rotation: 0
+ state: enabled
+
+blocks:
+- name: carrier_freq
+ id: variable
+ parameters:
+ comment: ''
+ value: 5e3
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [416, 60.0]
+ rotation: 0
+ state: true
+- name: modulation_factor
+ id: variable
+ parameters:
+ comment: ''
+ value: '.7'
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [520, 60.0]
+ rotation: 0
+ state: true
+- name: samp_rate
+ id: variable
+ parameters:
+ comment: ''
+ value: 128e3
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [192, 12.0]
+ rotation: 0
+ state: enabled
+- name: analog_am_demod_cf_0
+ id: analog_am_demod_cf
+ parameters:
+ affinity: ''
+ alias: ''
+ audio_decim: '1'
+ audio_pass: '5000'
+ audio_stop: '5500'
+ chan_rate: samp_rate
+ comment: ''
+ maxoutbuf: '0'
+ minoutbuf: '0'
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [968, 380.0]
+ rotation: 0
+ state: true
+- name: analog_const_source_x_0
+ id: analog_const_source_x
+ parameters:
+ affinity: ''
+ alias: ''
+ comment: ''
+ const: '1'
+ maxoutbuf: '0'
+ minoutbuf: '0'
+ type: complex
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [104, 460.0]
+ rotation: 0
+ state: true
+- name: analog_const_source_x_1
+ id: analog_const_source_x
+ parameters:
+ affinity: ''
+ alias: ''
+ comment: ''
+ const: modulation_factor
+ maxoutbuf: '0'
+ minoutbuf: '0'
+ type: complex
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [104, 268.0]
+ rotation: 0
+ state: true
+- name: analog_sig_source_x_0
+ id: analog_sig_source_x
+ parameters:
+ affinity: ''
+ alias: ''
+ amp: '1'
+ comment: ''
+ freq: carrier_freq
+ maxoutbuf: '0'
+ minoutbuf: '0'
+ offset: '0'
+ phase: '0'
+ samp_rate: samp_rate
+ type: complex
+ waveform: analog.GR_COS_WAVE
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [72, 548.0]
+ rotation: 0
+ state: true
+- name: analog_sig_source_x_1
+ id: analog_sig_source_x
+ parameters:
+ affinity: ''
+ alias: ''
+ amp: '1'
+ comment: ''
+ freq: '50'
+ maxoutbuf: '0'
+ minoutbuf: '0'
+ offset: '0'
+ phase: '0'
+ samp_rate: samp_rate
+ type: complex
+ waveform: analog.GR_SQR_WAVE
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [72, 324.0]
+ rotation: 0
+ state: true
+- name: blocks_add_xx_0
+ id: blocks_add_xx
+ parameters:
+ affinity: ''
+ alias: ''
+ comment: ''
+ maxoutbuf: '0'
+ minoutbuf: '0'
+ num_inputs: '2'
+ type: complex
+ vlen: '1'
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [488, 432.0]
+ rotation: 0
+ state: true
+- name: blocks_complex_to_real_0
+ id: blocks_complex_to_real
+ parameters:
+ affinity: ''
+ alias: ''
+ comment: ''
+ maxoutbuf: '0'
+ minoutbuf: '0'
+ vlen: '1'
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [624, 216.0]
+ rotation: 0
+ state: true
+- name: blocks_multiply_xx_0
+ id: blocks_multiply_xx
+ parameters:
+ affinity: ''
+ alias: ''
+ comment: ''
+ maxoutbuf: '0'
+ minoutbuf: '0'
+ num_inputs: '2'
+ type: complex
+ vlen: '1'
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [632, 560.0]
+ rotation: 0
+ state: true
+- name: blocks_multiply_xx_1
+ id: blocks_multiply_xx
+ parameters:
+ affinity: ''
+ alias: ''
+ comment: ''
+ maxoutbuf: '0'
+ minoutbuf: '0'
+ num_inputs: '2'
+ type: complex
+ vlen: '1'
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [328, 336.0]
+ rotation: 0
+ state: true
+- name: blocks_throttle_0
+ id: blocks_throttle
+ parameters:
+ affinity: ''
+ alias: ''
+ comment: ''
+ ignoretag: 'True'
+ maxoutbuf: '0'
+ minoutbuf: '0'
+ samples_per_second: samp_rate * 2
+ type: complex
+ vlen: '1'
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [760, 572.0]
+ rotation: 0
+ state: true
+- name: fosphor_glfw_sink_c_0
+ id: fosphor_glfw_sink_c
+ parameters:
+ affinity: ''
+ alias: ''
+ comment: ''
+ freq_center: '0'
+ freq_span: samp_rate
+ wintype: firdes.WIN_BLACKMAN_hARRIS
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [1000, 564.0]
+ rotation: 0
+ state: true
+- name: note_0
+ id: note
+ parameters:
+ alias: ''
+ comment: ''
+ note: AM modulator parameters
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [432, 12.0]
+ rotation: 0
+ state: true
+- name: qtgui_time_sink_x_0
+ id: qtgui_time_sink_x
+ parameters:
+ affinity: ''
+ alias: ''
+ alpha1: '1.0'
+ alpha10: '1.0'
+ alpha2: '1.0'
+ alpha3: '1.0'
+ alpha4: '1.0'
+ alpha5: '1.0'
+ alpha6: '1.0'
+ alpha7: '1.0'
+ alpha8: '1.0'
+ alpha9: '1.0'
+ autoscale: 'True'
+ axislabels: 'True'
+ color1: blue
+ color10: dark blue
+ color2: red
+ color3: green
+ color4: black
+ color5: cyan
+ color6: magenta
+ color7: yellow
+ color8: dark red
+ color9: dark green
+ comment: ''
+ ctrlpanel: 'False'
+ entags: 'True'
+ grid: 'True'
+ gui_hint: ''
+ label1: Original
+ label10: Signal 10
+ label2: Demodulated
+ label3: Signal 3
+ label4: Signal 4
+ label5: Signal 5
+ label6: Signal 6
+ label7: Signal 7
+ label8: Signal 8
+ label9: Signal 9
+ legend: 'True'
+ marker1: '-1'
+ marker10: '-1'
+ marker2: '-1'
+ marker3: '-1'
+ marker4: '-1'
+ marker5: '-1'
+ marker6: '-1'
+ marker7: '-1'
+ marker8: '-1'
+ marker9: '-1'
+ name: '"Demodulated AM signal"'
+ nconnections: '2'
+ size: '1024'
+ srate: samp_rate
+ stemplot: 'False'
+ style1: '1'
+ style10: '1'
+ style2: '1'
+ style3: '1'
+ style4: '1'
+ style5: '1'
+ style6: '1'
+ style7: '1'
+ style8: '1'
+ style9: '1'
+ tr_chan: '0'
+ tr_delay: 1e-3
+ tr_level: '0.0'
+ tr_mode: qtgui.TRIG_MODE_NORM
+ tr_slope: qtgui.TRIG_SLOPE_POS
+ tr_tag: '""'
+ type: float
+ update_time: 1e-1
+ width1: '1'
+ width10: '1'
+ width2: '1'
+ width3: '1'
+ width4: '1'
+ width5: '1'
+ width6: '1'
+ width7: '1'
+ width8: '1'
+ width9: '1'
+ ylabel: Amplitude
+ ymax: '1'
+ ymin: '-1'
+ yunit: '""'
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [1192, 204.0]
+ rotation: 0
+ state: true
+
+connections:
+- [analog_am_demod_cf_0, '0', qtgui_time_sink_x_0, '1']
+- [analog_const_source_x_0, '0', blocks_add_xx_0, '1']
+- [analog_const_source_x_1, '0', blocks_multiply_xx_1, '0']
+- [analog_sig_source_x_0, '0', blocks_multiply_xx_0, '1']
+- [analog_sig_source_x_1, '0', blocks_multiply_xx_1, '1']
+- [blocks_add_xx_0, '0', blocks_complex_to_real_0, '0']
+- [blocks_add_xx_0, '0', blocks_multiply_xx_0, '0']
+- [blocks_complex_to_real_0, '0', qtgui_time_sink_x_0, '0']
+- [blocks_multiply_xx_0, '0', blocks_throttle_0, '0']
+- [blocks_multiply_xx_1, '0', blocks_add_xx_0, '0']
+- [blocks_throttle_0, '0', analog_am_demod_cf_0, '0']
+- [blocks_throttle_0, '0', fosphor_glfw_sink_c_0, '0']
+
+metadata:
+ file_format: 1
diff --git a/tests/Simulation/Simluation.py b/tests/Simulation/Simluation.py
new file mode 100755
index 0000000..e9986ee
--- /dev/null
+++ b/tests/Simulation/Simluation.py
@@ -0,0 +1,236 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+#
+# SPDX-License-Identifier: GPL-3.0
+#
+# GNU Radio Python Flow Graph
+# Title: Simulation of a fading channel
+# Author: Naoki Pross
+# 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 analog
+from gnuradio import blocks
+from gnuradio import fosphor
+from gnuradio.fft import window
+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 import qtgui
+
+class Simluation(gr.top_block, Qt.QWidget):
+
+ def __init__(self):
+ gr.top_block.__init__(self, "Simulation of a fading channel")
+ Qt.QWidget.__init__(self)
+ self.setWindowTitle("Simulation of a fading channel")
+ 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", "Simluation")
+
+ 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.samp_rate = samp_rate = 128e3
+ self.modulation_factor = modulation_factor = .7
+ self.carrier_freq = carrier_freq = 5e3
+
+ ##################################################
+ # Blocks
+ ##################################################
+ self.qtgui_time_sink_x_0 = qtgui.time_sink_f(
+ 1024, #size
+ samp_rate, #samp_rate
+ "Demodulated AM signal", #name
+ 2 #number of inputs
+ )
+ self.qtgui_time_sink_x_0.set_update_time(1e-1)
+ 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_NORM, qtgui.TRIG_SLOPE_POS, 0.0, 1e-3, 0, "")
+ self.qtgui_time_sink_x_0.enable_autoscale(True)
+ self.qtgui_time_sink_x_0.enable_grid(True)
+ 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 = ['Original', 'Demodulated', '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(2):
+ 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.top_grid_layout.addWidget(self._qtgui_time_sink_x_0_win)
+ self.fosphor_glfw_sink_c_0 = fosphor.glfw_sink_c()
+ self.fosphor_glfw_sink_c_0.set_fft_window(firdes.WIN_BLACKMAN_hARRIS)
+ self.fosphor_glfw_sink_c_0.set_frequency_range(0, samp_rate)
+ self.blocks_throttle_0 = blocks.throttle(gr.sizeof_gr_complex*1, samp_rate * 2,True)
+ self.blocks_multiply_xx_1 = blocks.multiply_vcc(1)
+ self.blocks_multiply_xx_0 = blocks.multiply_vcc(1)
+ self.blocks_complex_to_real_0 = blocks.complex_to_real(1)
+ self.blocks_add_xx_0 = blocks.add_vcc(1)
+ self.analog_sig_source_x_1 = analog.sig_source_c(samp_rate, analog.GR_SQR_WAVE, 50, 1, 0, 0)
+ self.analog_sig_source_x_0 = analog.sig_source_c(samp_rate, analog.GR_COS_WAVE, carrier_freq, 1, 0, 0)
+ self.analog_const_source_x_1 = analog.sig_source_c(0, analog.GR_CONST_WAVE, 0, 0, modulation_factor)
+ self.analog_const_source_x_0 = analog.sig_source_c(0, analog.GR_CONST_WAVE, 0, 0, 1)
+ self.analog_am_demod_cf_0 = analog.am_demod_cf(
+ channel_rate=samp_rate,
+ audio_decim=1,
+ audio_pass=5000,
+ audio_stop=5500,
+ )
+
+
+
+ ##################################################
+ # Connections
+ ##################################################
+ self.connect((self.analog_am_demod_cf_0, 0), (self.qtgui_time_sink_x_0, 1))
+ self.connect((self.analog_const_source_x_0, 0), (self.blocks_add_xx_0, 1))
+ self.connect((self.analog_const_source_x_1, 0), (self.blocks_multiply_xx_1, 0))
+ self.connect((self.analog_sig_source_x_0, 0), (self.blocks_multiply_xx_0, 1))
+ self.connect((self.analog_sig_source_x_1, 0), (self.blocks_multiply_xx_1, 1))
+ self.connect((self.blocks_add_xx_0, 0), (self.blocks_complex_to_real_0, 0))
+ self.connect((self.blocks_add_xx_0, 0), (self.blocks_multiply_xx_0, 0))
+ self.connect((self.blocks_complex_to_real_0, 0), (self.qtgui_time_sink_x_0, 0))
+ self.connect((self.blocks_multiply_xx_0, 0), (self.blocks_throttle_0, 0))
+ self.connect((self.blocks_multiply_xx_1, 0), (self.blocks_add_xx_0, 0))
+ self.connect((self.blocks_throttle_0, 0), (self.analog_am_demod_cf_0, 0))
+ self.connect((self.blocks_throttle_0, 0), (self.fosphor_glfw_sink_c_0, 0))
+
+
+ def closeEvent(self, event):
+ self.settings = Qt.QSettings("GNU Radio", "Simluation")
+ self.settings.setValue("geometry", self.saveGeometry())
+ event.accept()
+
+ def get_samp_rate(self):
+ return self.samp_rate
+
+ def set_samp_rate(self, samp_rate):
+ self.samp_rate = samp_rate
+ self.analog_sig_source_x_0.set_sampling_freq(self.samp_rate)
+ self.analog_sig_source_x_1.set_sampling_freq(self.samp_rate)
+ self.blocks_throttle_0.set_sample_rate(self.samp_rate * 2)
+ self.fosphor_glfw_sink_c_0.set_frequency_range(0, self.samp_rate)
+ self.qtgui_time_sink_x_0.set_samp_rate(self.samp_rate)
+
+ def get_modulation_factor(self):
+ return self.modulation_factor
+
+ def set_modulation_factor(self, modulation_factor):
+ self.modulation_factor = modulation_factor
+ self.analog_const_source_x_1.set_offset(self.modulation_factor)
+
+ def get_carrier_freq(self):
+ return self.carrier_freq
+
+ def set_carrier_freq(self, carrier_freq):
+ self.carrier_freq = carrier_freq
+ self.analog_sig_source_x_0.set_frequency(self.carrier_freq)
+
+
+
+
+
+def main(top_block_cls=Simluation, 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()