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-rw-r--r--doc/thesis/chapters/implementation.tex4
-rwxr-xr-xsrc/gui.py42
-rw-r--r--src/net.py35
-rw-r--r--src/nix/numpy-ringbuffer.nix12
-rw-r--r--src/shell.nix10
-rw-r--r--tests/correlator/acgen.datbin5120 -> 5120 bytes
-rw-r--r--tests/correlator/acgen.grc6
-rwxr-xr-xtests/correlator/acgen.py13
-rwxr-xr-xtests/correlator/acproc.py7
-rw-r--r--tests/correlator/correlator.grc47
-rwxr-xr-xtests/correlator/correlator.py51
11 files changed, 137 insertions, 90 deletions
diff --git a/doc/thesis/chapters/implementation.tex b/doc/thesis/chapters/implementation.tex
index 91a1856..04549c5 100644
--- a/doc/thesis/chapters/implementation.tex
+++ b/doc/thesis/chapters/implementation.tex
@@ -1,4 +1,4 @@
-% vim: set ts=2 sw=2 noet:
+% vim: set ts=2 sw=2 noet spell:
\chapter{Implementation}
@@ -47,7 +47,7 @@ From the complex space the constellation points are decode to bits.
}
\end{figure}
-To compute the empirical \emph{bit error rate} (BER) of the setup, the data has to be framed on by the sender and the bitstream synchronized on the receiver side. The structure of a data packed used in the implementation is shown in \figref{fig:dataframe}. A frame begins with an user specified \(k\)-byte preamble, that in the current implementation serves as synchronization pattern. Another use case for the preamble sequence could be to introduce channel estimation pilot symbols. Following the preamble are 4 bytes encoded using a (31, 26) Hamming code (plus 1 padding bit), that contain metadata about the packet, namely payload ID and payload length. Because the payload length in bytes is encoded in 21 bits, the maximum payload size is 2 MiB, which together with \(2^5 = 32\) possible unique IDs gives a maximum data transfer with unique frame headers of 64 MiB. These constraints are a result of decisions made to keep the implementation simple.
+To compute the empirical \emph{bit error rate} (BER) of the setup, the data has to be framed on by the sender and the bitstream synchronized on the receiver side. The structure of a data packed used in the implementation is shown in \figref{fig:dataframe}. A frame begins with an user specified \(k\)-byte preamble, that in the current implementation serves as synchronization pattern. Another use case for the preamble sequence could be to introduce channel estimation pilot symbols. Following the preamble are 4 bytes encoded using a (31, 26) Hamming code (plus 1 padding bit), that contain metadata about the packet, namely payload ID and payload length. Because the payload length in bytes is encoded in 21 bits, the maximum payload size is 2 MiB, which together with 32 possible unique IDs gives a maximum data transfer with unique frame headers of 64 MiB. These constraints are a result of decisions made to keep the implementation simple.
On the receiver side the bitstream is synchronized using a XOR correlator. To find the synchronization delay \(d\) (in samples) the XOR correlator computes the binary cross correlation
\begin{equation} \label{eqn:binary-xcorr}
diff --git a/src/gui.py b/src/gui.py
index a0db566..b2cbebb 100755
--- a/src/gui.py
+++ b/src/gui.py
@@ -13,7 +13,6 @@ import signal
# Mathematics
import numpy as np
-from numpy_ringbuffer import RingBuffer
# For debugging
import logging
@@ -37,42 +36,6 @@ setup_dearpygui()
# Show demo for dev
show_demo()
-#================================================
-# Network classes
-
-class network_plot(net.udpsource):
- def __init__(self, url, nsamples, **kwargs):
- net.udpsource.__init__(self, url)
-
- self.nsamples = nsamples
- self.plot = plot(**kwargs)
-
- # create buffer and fill with zeroes
- self.buffer = RingBuffer(capacity=nsamples, dtype=(np.float, 2))
- for i in range(nsamples):
- # TODO: remove random data used for testing
- self.buffer.append(np.array([i, 1 + np.random.rand() / 5]))
-
- self.bind()
-
- def __enter__(self):
- return self.plot.__enter__()
-
- def __exit__(self, t, val, tb):
- self.plot.__exit__(t, val, tb)
-
- @property
- def x_data(self):
- return np.array(self.buffer[:,0])
-
- @property
- def y_data(self):
- return np.array(self.buffer[:,1])
-
- def refresh(self, series_tag):
- # set_value(series_tag, [self.x_data, self.y_data])
- pass
-
#================================================
# GUI Callback functions
@@ -135,8 +98,7 @@ with window(label="RX DSP Flow Graph", width=800, height=400, pos=(25,25), tag="
#================================================
# Network plots Window
-recv_plot = network_plot(url="udp://localhost:31415", nsamples=100, label="Test", height=300, width=800)
-
+recv_plot = net.network_plot(url="udp://localhost:31415", nsamples=100, label="Test", height=300, width=800)
plots = {
recv_plot: "plt_ampl"
@@ -158,7 +120,7 @@ show_viewport()
# Main loop
while is_dearpygui_running():
for plt, tag in plots.items():
- plt.refresh(tag)
+ plt.refresh_series(tag)
render_dearpygui_frame()
diff --git a/src/net.py b/src/net.py
index 6bd71ac..2c91bb8 100644
--- a/src/net.py
+++ b/src/net.py
@@ -3,6 +3,8 @@ import socket
from urllib.parse import urlparse
import numpy as np
+from numpy_ringbuffer import RingBuffer
+import dearpygui.dearpygui as dpg
class udpsource:
@@ -31,3 +33,36 @@ class udpsource:
else:
return None
+
+class network_plot(udpsource):
+ def __init__(self, url, nsamples, **kwargs):
+ udpsource.__init__(self, url)
+
+ self.nsamples = nsamples
+ self.plot = dpg.plot(**kwargs)
+
+ # create buffer and fill with zeroes
+ self.buffer = RingBuffer(capacity=nsamples, dtype=(float, 2))
+ for i in range(nsamples):
+ # TODO: remove random data used for testing
+ self.buffer.append(np.array([i, 1 + np.random.rand() / 5]))
+
+ self.bind()
+
+ def __enter__(self):
+ return self.plot.__enter__()
+
+ def __exit__(self, t, val, tb):
+ self.plot.__exit__(t, val, tb)
+
+ @property
+ def x_data(self):
+ return np.array(self.buffer[:,0])
+
+ @property
+ def y_data(self):
+ return np.array(self.buffer[:,1])
+
+ def refresh_series(self, tag):
+ dpg.set_value(tag, [self.x_data, self.y_data])
+ pass
diff --git a/src/nix/numpy-ringbuffer.nix b/src/nix/numpy-ringbuffer.nix
new file mode 100644
index 0000000..b97b01a
--- /dev/null
+++ b/src/nix/numpy-ringbuffer.nix
@@ -0,0 +1,12 @@
+{ lib, pkgs, buildPythonPackage, fetchPypi, isPy38, autoPatchelfHook }:
+
+buildPythonPackage rec {
+ pname = "numpy_ringbuffer";
+ version = "0.2.1";
+ src = fetchPypi {
+ inherit pname version;
+ sha256 = "1vrw38jb3cy9m0c1xxvkk5sf1hpgv58x649a2nnqi9ljdl5wcydc";
+ };
+
+ buildInputs = (with pkgs.python3Packages; [ numpy ]);
+}
diff --git a/src/shell.nix b/src/shell.nix
index 666bab3..22771e2 100644
--- a/src/shell.nix
+++ b/src/shell.nix
@@ -7,10 +7,18 @@ let
isPy38 = pkgs.python38Packages.isPy38;
};
+ numpy-ringbuffer = callPackage ./nix/numpy-ringbuffer.nix {
+ buildPythonPackage = pkgs.python38Packages.buildPythonPackage;
+ fetchPypi = pkgs.python38Packages.fetchPypi;
+ isPy38 = pkgs.python38Packages.isPy38;
+ };
+
in mkShell {
- buildInputs = [ dearpygui ] ++ (with pkgs; [
+ buildInputs = [ dearpygui numpy-ringbuffer ] ++ (with pkgs; [
gnuradio
python38Packages.setuptools
+ python38Packages.matplotlib
+ python38Packages.numpy
# gnuradio block dev dependencies
cmake ninja pkg-config log4cpp mpir boost175 gmp volk doxygen
python38Packages.pybind11
diff --git a/tests/correlator/acgen.dat b/tests/correlator/acgen.dat
index a6ad193..537dcc5 100644
--- a/tests/correlator/acgen.dat
+++ b/tests/correlator/acgen.dat
Binary files differ
diff --git a/tests/correlator/acgen.grc b/tests/correlator/acgen.grc
index b0aa685..ec7c1e8 100644
--- a/tests/correlator/acgen.grc
+++ b/tests/correlator/acgen.grc
@@ -1,6 +1,7 @@
options:
parameters:
author: Naoki Pross
+ catch_exceptions: 'True'
category: '[GRC Hier Blocks]'
cmake_opt: ''
comment: ''
@@ -22,7 +23,6 @@ options:
sizing_mode: fixed
thread_safe_setters: ''
title: Access Code Symbols Generator
- window_size: ''
states:
bus_sink: false
bus_source: false
@@ -36,7 +36,7 @@ blocks:
id: variable
parameters:
comment: ''
- value: '[ 0xaa, 0xff, 0xff ]'
+ value: '[ 0xaa, 0xff, 0x0a ]'
states:
bus_sink: false
bus_source: false
@@ -50,6 +50,7 @@ blocks:
comment: ''
const_points: '[-1-1j, -1+1j, 1+1j, 1-1j]'
dims: '1'
+ normalization: digital.constellation.AMPLITUDE_NORMALIZATION
precision: '8'
rot_sym: '4'
soft_dec_lut: None
@@ -168,6 +169,7 @@ blocks:
maxoutbuf: '0'
minoutbuf: '0'
samples_per_symbol: sps
+ truncate: 'False'
verbose: 'False'
states:
bus_sink: false
diff --git a/tests/correlator/acgen.py b/tests/correlator/acgen.py
index f4486e4..5fbdbb4 100755
--- a/tests/correlator/acgen.py
+++ b/tests/correlator/acgen.py
@@ -7,12 +7,13 @@
# GNU Radio Python Flow Graph
# Title: Access Code Symbols Generator
# Author: Naoki Pross
-# GNU Radio version: 3.8.2.0
+# GNU Radio version: 3.9.2.0
from gnuradio import blocks
from gnuradio import digital
from gnuradio import gr
from gnuradio.filter import firdes
+from gnuradio.fft import window
import sys
import signal
from argparse import ArgumentParser
@@ -20,10 +21,12 @@ from gnuradio.eng_arg import eng_float, intx
from gnuradio import eng_notation
+
+
class acgen(gr.top_block):
def __init__(self):
- gr.top_block.__init__(self, "Access Code Symbols Generator")
+ gr.top_block.__init__(self, "Access Code Symbols Generator", catch_exceptions=True)
##################################################
# Variables
@@ -32,7 +35,7 @@ class acgen(gr.top_block):
self.samp_rate = samp_rate = 32000
self.excess_bw = excess_bw = 1
self.const = const = digital.constellation_qpsk().base()
- self.access_code = access_code = [ 0xaa, 0xff, 0xff ]
+ self.access_code = access_code = [ 0xaa, 0xff, 0x0a ]
##################################################
# Blocks
@@ -44,7 +47,8 @@ class acgen(gr.top_block):
pre_diff_code=True,
excess_bw=excess_bw,
verbose=False,
- log=False)
+ log=False,
+ truncate=False)
self.blocks_vector_source_x_0 = blocks.vector_source_b([0x00] * 10 + access_code * 10, False, 1, [])
self.blocks_throttle_0 = blocks.throttle(gr.sizeof_char*1, samp_rate,True)
self.blocks_file_sink_0 = blocks.file_sink(gr.sizeof_gr_complex*1, 'acgen.dat', False)
@@ -95,7 +99,6 @@ class acgen(gr.top_block):
-
def main(top_block_cls=acgen, options=None):
tb = top_block_cls()
diff --git a/tests/correlator/acproc.py b/tests/correlator/acproc.py
index 5f6ace3..e119520 100755
--- a/tests/correlator/acproc.py
+++ b/tests/correlator/acproc.py
@@ -49,8 +49,9 @@ ax2.plot(ac.imag, ".-")
ax2.set_title("Symbols of Access Code (time)")
plt.show()
+fir = list(np.conj(ac[::-1]))
+
# print the symbols
print(f"Generated {len(ac)} symbols from a {aclen} byte sequence")
-print(list(ac))
-print("Reversed symbols (for FIR filter)")
-print(list(ac[::-1]))
+print("Reversed symbols (for FIR filter):")
+print(fir)
diff --git a/tests/correlator/correlator.grc b/tests/correlator/correlator.grc
index a5a8c89..cc57e18 100644
--- a/tests/correlator/correlator.grc
+++ b/tests/correlator/correlator.grc
@@ -1,6 +1,7 @@
options:
parameters:
author: Naoki Pross
+ catch_exceptions: 'True'
category: '[GRC Hier Blocks]'
cmake_opt: ''
comment: ''
@@ -22,7 +23,6 @@ options:
sizing_mode: fixed
thread_safe_setters: ''
title: Correlator Test
- window_size: ''
states:
bus_sink: false
bus_source: false
@@ -38,6 +38,7 @@ blocks:
comment: ''
const_points: '[-1-1j, -1+1j, 1+1j, 1-1j]'
dims: '1'
+ normalization: digital.constellation.AMPLITUDE_NORMALIZATION
precision: '8'
rot_sym: '4'
soft_dec_lut: None
@@ -122,6 +123,22 @@ blocks:
coordinate: [696, 420.0]
rotation: 0
state: true
+- name: blocks_complex_to_mag_0
+ id: blocks_complex_to_mag
+ parameters:
+ affinity: ''
+ alias: ''
+ comment: ''
+ maxoutbuf: '0'
+ minoutbuf: '0'
+ vlen: '1'
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [1584, 80.0]
+ rotation: 0
+ state: true
- name: blocks_null_sink_0
id: blocks_null_sink
parameters:
@@ -169,7 +186,7 @@ blocks:
repeat: 'False'
tags: '[]'
type: byte
- vector: '[0x00] * 10 + [0xaa, 0xff, 0xff] + [0x00] * 10'
+ vector: ([0x00] * 10 + [0xaa, 0xff, 0x0a] + [0x00] * 10) * 20
vlen: '1'
states:
bus_sink: false
@@ -196,7 +213,7 @@ blocks:
bus_structure: null
coordinate: [992, 188.0]
rotation: 0
- state: true
+ state: enabled
- name: digital_constellation_decoder_cb_0
id: digital_constellation_decoder_cb
parameters:
@@ -226,6 +243,7 @@ blocks:
maxoutbuf: '0'
minoutbuf: '0'
samples_per_symbol: sps
+ truncate: 'False'
verbose: 'False'
states:
bus_sink: false
@@ -267,17 +285,17 @@ blocks:
maxoutbuf: '0'
minoutbuf: '0'
samp_delay: '0'
- taps: '[(1.4142197+1.4142197j), (1.4142197+1.4142197j), (1.4142197+1.4142197j),
- (1.4142197+1.4142197j), (1.4142197+1.4142197j), (1.4142197+1.4142197j), (-1.4142197+1.4142197j),
- (-1.4142197+1.4142197j), (-1.4142197+1.4142197j), (-1.4142197+1.4142197j), (1.4142197+1.4142197j),
- (1.4142197+1.4142197j), (1.4142197+1.4142197j), (1.4142197+1.4142197j), (1.4142197+1.4142197j),
- (1.4142197+1.4142197j)]'
+ taps: '[(-1.4142197+1.4142197j), (-1.4142197+1.4142197j), (1.4142197-1.4142197j),
+ (1.4142197-1.4142197j), (1.4142197-1.4142197j), (1.4142197-1.4142197j), (-1.4142197-1.4142197j),
+ (-1.4142197-1.4142197j), (-1.4142197-1.4142197j), (-1.4142197-1.4142197j), (-1.4142197-1.4142197j),
+ (-1.4142197-1.4142197j), (-1.4142197+1.4142197j), (-1.4142197+1.4142197j), (1.4142197-1.4142197j),
+ (1.4142197-1.4142197j)]'
type: ccc
states:
bus_sink: false
bus_source: false
bus_structure: null
- coordinate: [1240, 76.0]
+ coordinate: [1328, 68.0]
rotation: 0
state: enabled
- name: qtgui_time_sink_x_0
@@ -354,7 +372,7 @@ blocks:
tr_mode: qtgui.TRIG_MODE_FREE
tr_slope: qtgui.TRIG_SLOPE_POS
tr_tag: '""'
- type: complex
+ type: float
update_time: '0.10'
width1: '1'
width10: '1'
@@ -367,14 +385,14 @@ blocks:
width8: '1'
width9: '1'
ylabel: Amplitude
- ymax: '2'
- ymin: '-2'
+ ymax: '50'
+ ymin: '0'
yunit: '""'
states:
bus_sink: false
bus_source: false
bus_structure: null
- coordinate: [1488, 68.0]
+ coordinate: [1792, 60.0]
rotation: 0
state: true
- name: qtgui_time_sink_x_1
@@ -476,6 +494,7 @@ blocks:
state: true
connections:
+- [blocks_complex_to_mag_0, '0', qtgui_time_sink_x_0, '0']
- [blocks_throttle_0, '0', digital_constellation_modulator_0, '0']
- [blocks_vector_source_x_0, '0', blocks_throttle_0, '0']
- [digital_cma_equalizer_cc_0, '0', digital_constellation_decoder_cb_0, '0']
@@ -484,7 +503,7 @@ connections:
- [digital_constellation_modulator_0, '0', digital_pfb_clock_sync_xxx_0, '0']
- [digital_constellation_modulator_0, '0', qtgui_time_sink_x_1, '0']
- [digital_pfb_clock_sync_xxx_0, '0', digital_cma_equalizer_cc_0, '0']
-- [fir_filter_xxx_1, '0', qtgui_time_sink_x_0, '0']
+- [fir_filter_xxx_1, '0', blocks_complex_to_mag_0, '0']
metadata:
file_format: 1
diff --git a/tests/correlator/correlator.py b/tests/correlator/correlator.py
index b0cef0e..79fa3f8 100755
--- a/tests/correlator/correlator.py
+++ b/tests/correlator/correlator.py
@@ -7,7 +7,7 @@
# GNU Radio Python Flow Graph
# Title: Correlator Test
# Author: Naoki Pross
-# GNU Radio version: 3.8.2.0
+# GNU Radio version: 3.9.2.0
from distutils.version import StrictVersion
@@ -29,18 +29,21 @@ from gnuradio import blocks
from gnuradio import digital
from gnuradio import filter
from gnuradio import gr
+from gnuradio.fft import window
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 correlator(gr.top_block, Qt.QWidget):
def __init__(self):
- gr.top_block.__init__(self, "Correlator Test")
+ gr.top_block.__init__(self, "Correlator Test", catch_exceptions=True)
Qt.QWidget.__init__(self)
self.setWindowTitle("Correlator Test")
qtgui.util.check_set_qss()
@@ -88,7 +91,8 @@ class correlator(gr.top_block, Qt.QWidget):
1024, #size
samp_rate, #samp_rate
"", #name
- 1 #number of inputs
+ 1, #number of inputs
+ None # parent
)
self.qtgui_time_sink_x_1.set_update_time(0.10)
self.qtgui_time_sink_x_1.set_y_axis(-2, 2)
@@ -133,15 +137,16 @@ class correlator(gr.top_block, Qt.QWidget):
self.qtgui_time_sink_x_1.set_line_alpha(i, alphas[i])
self._qtgui_time_sink_x_1_win = sip.wrapinstance(self.qtgui_time_sink_x_1.pyqwidget(), Qt.QWidget)
- self.top_grid_layout.addWidget(self._qtgui_time_sink_x_1_win)
- self.qtgui_time_sink_x_0 = qtgui.time_sink_c(
+ self.top_layout.addWidget(self._qtgui_time_sink_x_1_win)
+ self.qtgui_time_sink_x_0 = qtgui.time_sink_f(
1024, #size
samp_rate, #samp_rate
"", #name
- 1 #number of inputs
+ 1, #number of inputs
+ None # parent
)
self.qtgui_time_sink_x_0.set_update_time(0.10)
- self.qtgui_time_sink_x_0.set_y_axis(-2, 2)
+ self.qtgui_time_sink_x_0.set_y_axis(0, 50)
self.qtgui_time_sink_x_0.set_y_label('Amplitude', "")
@@ -168,12 +173,9 @@ class correlator(gr.top_block, Qt.QWidget):
-1, -1, -1, -1, -1]
- for i in range(2):
+ for i in range(1):
if len(labels[i]) == 0:
- if (i % 2 == 0):
- self.qtgui_time_sink_x_0.set_line_label(i, "Re{{Data {0}}}".format(i/2))
- else:
- self.qtgui_time_sink_x_0.set_line_label(i, "Im{{Data {0}}}".format(i/2))
+ 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])
@@ -183,8 +185,8 @@ class correlator(gr.top_block, Qt.QWidget):
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.fir_filter_xxx_1 = filter.fir_filter_ccc(1, [(1.4142197+1.4142197j), (1.4142197+1.4142197j), (1.4142197+1.4142197j), (1.4142197+1.4142197j), (1.4142197+1.4142197j), (1.4142197+1.4142197j), (-1.4142197+1.4142197j), (-1.4142197+1.4142197j), (-1.4142197+1.4142197j), (-1.4142197+1.4142197j), (1.4142197+1.4142197j), (1.4142197+1.4142197j), (1.4142197+1.4142197j), (1.4142197+1.4142197j), (1.4142197+1.4142197j), (1.4142197+1.4142197j)])
+ self.top_layout.addWidget(self._qtgui_time_sink_x_0_win)
+ self.fir_filter_xxx_1 = filter.fir_filter_ccc(1, [(-1.4142197+1.4142197j), (-1.4142197+1.4142197j), (1.4142197-1.4142197j), (1.4142197-1.4142197j), (1.4142197-1.4142197j), (1.4142197-1.4142197j), (-1.4142197-1.4142197j), (-1.4142197-1.4142197j), (-1.4142197-1.4142197j), (-1.4142197-1.4142197j), (-1.4142197-1.4142197j), (-1.4142197-1.4142197j), (-1.4142197+1.4142197j), (-1.4142197+1.4142197j), (1.4142197-1.4142197j), (1.4142197-1.4142197j)])
self.fir_filter_xxx_1.declare_sample_delay(0)
self.digital_pfb_clock_sync_xxx_0 = digital.pfb_clock_sync_ccf(sps, timing_loop_bw, rrc_taps, nfilts, 16, 1.5, 1)
self.digital_constellation_modulator_0 = digital.generic_mod(
@@ -194,18 +196,21 @@ class correlator(gr.top_block, Qt.QWidget):
pre_diff_code=True,
excess_bw=excess_bw,
verbose=False,
- log=False)
+ log=False,
+ truncate=False)
self.digital_constellation_decoder_cb_0 = digital.constellation_decoder_cb(const)
self.digital_cma_equalizer_cc_0 = digital.cma_equalizer_cc(15, 1, .002, 1)
- self.blocks_vector_source_x_0 = blocks.vector_source_b([0x00] * 10 + [0xaa, 0xff, 0xff] + [0x00] * 10, False, 1, [])
+ self.blocks_vector_source_x_0 = blocks.vector_source_b(([0x00] * 10 + [0xaa, 0xff, 0x0a] + [0x00] * 10) * 20, False, 1, [])
self.blocks_throttle_0 = blocks.throttle(gr.sizeof_char*1, samp_rate,True)
self.blocks_null_sink_0 = blocks.null_sink(gr.sizeof_char*1)
+ self.blocks_complex_to_mag_0 = blocks.complex_to_mag(1)
##################################################
# Connections
##################################################
+ self.connect((self.blocks_complex_to_mag_0, 0), (self.qtgui_time_sink_x_0, 0))
self.connect((self.blocks_throttle_0, 0), (self.digital_constellation_modulator_0, 0))
self.connect((self.blocks_vector_source_x_0, 0), (self.blocks_throttle_0, 0))
self.connect((self.digital_cma_equalizer_cc_0, 0), (self.digital_constellation_decoder_cb_0, 0))
@@ -214,12 +219,15 @@ class correlator(gr.top_block, Qt.QWidget):
self.connect((self.digital_constellation_modulator_0, 0), (self.digital_pfb_clock_sync_xxx_0, 0))
self.connect((self.digital_constellation_modulator_0, 0), (self.qtgui_time_sink_x_1, 0))
self.connect((self.digital_pfb_clock_sync_xxx_0, 0), (self.digital_cma_equalizer_cc_0, 0))
- self.connect((self.fir_filter_xxx_1, 0), (self.qtgui_time_sink_x_0, 0))
+ self.connect((self.fir_filter_xxx_1, 0), (self.blocks_complex_to_mag_0, 0))
def closeEvent(self, event):
self.settings = Qt.QSettings("GNU Radio", "correlator")
self.settings.setValue("geometry", self.saveGeometry())
+ self.stop()
+ self.wait()
+
event.accept()
def get_sps(self):
@@ -275,7 +283,6 @@ class correlator(gr.top_block, Qt.QWidget):
-
def main(top_block_cls=correlator, options=None):
if StrictVersion("4.5.0") <= StrictVersion(Qt.qVersion()) < StrictVersion("5.0.0"):
@@ -290,6 +297,9 @@ def main(top_block_cls=correlator, options=None):
tb.show()
def sig_handler(sig=None, frame=None):
+ tb.stop()
+ tb.wait()
+
Qt.QApplication.quit()
signal.signal(signal.SIGINT, sig_handler)
@@ -299,11 +309,6 @@ def main(top_block_cls=correlator, options=None):
timer.start(500)
timer.timeout.connect(lambda: None)
- def quitting():
- tb.stop()
- tb.wait()
-
- qapp.aboutToQuit.connect(quitting)
qapp.exec_()
if __name__ == '__main__':
generated by cgit v1.2.1 (git 2.18.0) at 2024-05-19 12:24:33 +0200