Add top_block built with recent gnuradio
Jeff Moe
parent
cfb1f4af96
commit
74aacf4dca
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#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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#
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# SPDX-License-Identifier: GPL-3.0
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#
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# GNU Radio Python Flow Graph
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# Title: Top Block
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# GNU Radio version: 3.10.5.0
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from gnuradio import blocks
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from gnuradio import fft
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from gnuradio.fft import window
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from gnuradio import gr
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from gnuradio.filter import firdes
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import sys
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import signal
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from argparse import ArgumentParser
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from gnuradio.eng_arg import eng_float, intx
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from gnuradio import eng_notation
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import numpy as np
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import osmosdr
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import time
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class top_block(gr.top_block):
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def __init__(self, c_freq=1420000000, nbin=1000, nchan=1024, obs_time=60, samp_rate=2400000):
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gr.top_block.__init__(self, "Top Block", catch_exceptions=True)
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##################################################
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# Parameters
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##################################################
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self.c_freq = c_freq
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self.nbin = nbin
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self.nchan = nchan
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self.obs_time = obs_time
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self.samp_rate = samp_rate
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##################################################
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# Variables
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##################################################
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self.sinc_sample_locations = sinc_sample_locations = np.arange(-np.pi*4/2.0, np.pi*4/2.0, np.pi/nchan)
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self.sinc = sinc = np.sinc(sinc_sample_locations/np.pi)
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self.custom_window = custom_window = sinc*np.hamming(4*nchan)
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##################################################
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# Blocks
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##################################################
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self.fft_vxx_0 = fft.fft_vcc(nchan, True, window.blackmanharris(nchan), True, 1)
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self.blocks_stream_to_vector_0_2 = blocks.stream_to_vector(gr.sizeof_gr_complex*1, nchan)
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self.blocks_stream_to_vector_0_1 = blocks.stream_to_vector(gr.sizeof_gr_complex*1, nchan)
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self.blocks_stream_to_vector_0_0 = blocks.stream_to_vector(gr.sizeof_gr_complex*1, nchan)
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self.blocks_stream_to_vector_0 = blocks.stream_to_vector(gr.sizeof_gr_complex*1, nchan)
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self.blocks_multiply_const_vxx_0_0_0_0 = blocks.multiply_const_vcc(custom_window[0:nchan])
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self.blocks_multiply_const_vxx_0_0_0 = blocks.multiply_const_vcc(custom_window[nchan:2*nchan])
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self.blocks_multiply_const_vxx_0_0 = blocks.multiply_const_vcc(custom_window[2*nchan:3*nchan])
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self.blocks_multiply_const_vxx_0 = blocks.multiply_const_vcc(custom_window[-nchan:])
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self.blocks_integrate_xx_0 = blocks.integrate_ff(nbin, nchan)
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self.blocks_head_0 = blocks.head(gr.sizeof_gr_complex*1, (int(obs_time*samp_rate)))
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self.blocks_file_sink_0 = blocks.file_sink(gr.sizeof_float*nchan, 'observation.dat', True)
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self.blocks_file_sink_0.set_unbuffered(False)
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self.blocks_delay_0_1 = blocks.delay(gr.sizeof_gr_complex*1, nchan)
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self.blocks_delay_0_0 = blocks.delay(gr.sizeof_gr_complex*1, (nchan*2))
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self.blocks_delay_0 = blocks.delay(gr.sizeof_gr_complex*1, (nchan*3))
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self.blocks_complex_to_mag_squared_0 = blocks.complex_to_mag_squared(nchan)
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self.blocks_add_xx_0 = blocks.add_vcc(nchan)
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self.RTL820T = osmosdr.source(
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args="numchan=" + str(1) + " " + ''
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)
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self.RTL820T.set_time_unknown_pps(osmosdr.time_spec_t())
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self.RTL820T.set_sample_rate(samp_rate)
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self.RTL820T.set_center_freq(c_freq, 0)
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self.RTL820T.set_freq_corr(0, 0)
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self.RTL820T.set_dc_offset_mode(0, 0)
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self.RTL820T.set_iq_balance_mode(0, 0)
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self.RTL820T.set_gain_mode(False, 0)
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self.RTL820T.set_gain(10, 0)
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self.RTL820T.set_if_gain(10, 0)
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self.RTL820T.set_bb_gain(10, 0)
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self.RTL820T.set_antenna('', 0)
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self.RTL820T.set_bandwidth(0, 0)
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##################################################
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# Connections
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##################################################
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self.connect((self.RTL820T, 0), (self.blocks_head_0, 0))
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self.connect((self.blocks_add_xx_0, 0), (self.fft_vxx_0, 0))
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self.connect((self.blocks_complex_to_mag_squared_0, 0), (self.blocks_integrate_xx_0, 0))
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self.connect((self.blocks_delay_0, 0), (self.blocks_stream_to_vector_0_2, 0))
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self.connect((self.blocks_delay_0_0, 0), (self.blocks_stream_to_vector_0_0, 0))
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self.connect((self.blocks_delay_0_1, 0), (self.blocks_stream_to_vector_0_1, 0))
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self.connect((self.blocks_head_0, 0), (self.blocks_delay_0, 0))
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self.connect((self.blocks_head_0, 0), (self.blocks_delay_0_0, 0))
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self.connect((self.blocks_head_0, 0), (self.blocks_delay_0_1, 0))
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self.connect((self.blocks_head_0, 0), (self.blocks_stream_to_vector_0, 0))
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self.connect((self.blocks_integrate_xx_0, 0), (self.blocks_file_sink_0, 0))
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self.connect((self.blocks_multiply_const_vxx_0, 0), (self.blocks_add_xx_0, 0))
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self.connect((self.blocks_multiply_const_vxx_0_0, 0), (self.blocks_add_xx_0, 1))
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self.connect((self.blocks_multiply_const_vxx_0_0_0, 0), (self.blocks_add_xx_0, 2))
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self.connect((self.blocks_multiply_const_vxx_0_0_0_0, 0), (self.blocks_add_xx_0, 3))
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self.connect((self.blocks_stream_to_vector_0, 0), (self.blocks_multiply_const_vxx_0, 0))
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self.connect((self.blocks_stream_to_vector_0_0, 0), (self.blocks_multiply_const_vxx_0_0_0, 0))
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self.connect((self.blocks_stream_to_vector_0_1, 0), (self.blocks_multiply_const_vxx_0_0, 0))
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self.connect((self.blocks_stream_to_vector_0_2, 0), (self.blocks_multiply_const_vxx_0_0_0_0, 0))
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self.connect((self.fft_vxx_0, 0), (self.blocks_complex_to_mag_squared_0, 0))
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def get_c_freq(self):
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return self.c_freq
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def set_c_freq(self, c_freq):
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self.c_freq = c_freq
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self.RTL820T.set_center_freq(self.c_freq, 0)
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def get_nbin(self):
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return self.nbin
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def set_nbin(self, nbin):
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self.nbin = nbin
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def get_nchan(self):
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return self.nchan
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def set_nchan(self, nchan):
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self.nchan = nchan
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self.set_custom_window(self.sinc*np.hamming(4*self.nchan))
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self.set_sinc_sample_locations(np.arange(-np.pi*4/2.0, np.pi*4/2.0, np.pi/self.nchan))
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self.blocks_delay_0.set_dly(int((self.nchan*3)))
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self.blocks_delay_0_0.set_dly(int((self.nchan*2)))
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self.blocks_delay_0_1.set_dly(int(self.nchan))
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self.blocks_multiply_const_vxx_0.set_k(self.custom_window[-self.nchan:])
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self.blocks_multiply_const_vxx_0_0.set_k(self.custom_window[2*self.nchan:3*self.nchan])
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self.blocks_multiply_const_vxx_0_0_0.set_k(self.custom_window[self.nchan:2*self.nchan])
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self.blocks_multiply_const_vxx_0_0_0_0.set_k(self.custom_window[0:self.nchan])
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def get_obs_time(self):
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return self.obs_time
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def set_obs_time(self, obs_time):
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self.obs_time = obs_time
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self.blocks_head_0.set_length((int(self.obs_time*self.samp_rate)))
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def get_samp_rate(self):
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return self.samp_rate
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def set_samp_rate(self, samp_rate):
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self.samp_rate = samp_rate
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self.RTL820T.set_sample_rate(self.samp_rate)
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self.blocks_head_0.set_length((int(self.obs_time*self.samp_rate)))
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def get_sinc_sample_locations(self):
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return self.sinc_sample_locations
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def set_sinc_sample_locations(self, sinc_sample_locations):
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self.sinc_sample_locations = sinc_sample_locations
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self.set_sinc(np.sinc(self.sinc_sample_locations/np.pi))
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def get_sinc(self):
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return self.sinc
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def set_sinc(self, sinc):
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self.sinc = sinc
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self.set_custom_window(self.sinc*np.hamming(4*self.nchan))
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self.set_sinc(np.sinc(self.sinc_sample_locations/np.pi))
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def get_custom_window(self):
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return self.custom_window
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def set_custom_window(self, custom_window):
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self.custom_window = custom_window
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self.blocks_multiply_const_vxx_0.set_k(self.custom_window[-self.nchan:])
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self.blocks_multiply_const_vxx_0_0.set_k(self.custom_window[2*self.nchan:3*self.nchan])
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self.blocks_multiply_const_vxx_0_0_0.set_k(self.custom_window[self.nchan:2*self.nchan])
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self.blocks_multiply_const_vxx_0_0_0_0.set_k(self.custom_window[0:self.nchan])
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def argument_parser():
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parser = ArgumentParser()
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parser.add_argument(
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"--c-freq", dest="c_freq", type=eng_float, default=eng_notation.num_to_str(float(1420000000)),
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help="Set c_freq [default=%(default)r]")
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parser.add_argument(
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"--nbin", dest="nbin", type=intx, default=1000,
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help="Set nbin [default=%(default)r]")
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parser.add_argument(
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"--nchan", dest="nchan", type=intx, default=1024,
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help="Set nchan [default=%(default)r]")
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parser.add_argument(
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"--obs-time", dest="obs_time", type=eng_float, default=eng_notation.num_to_str(float(60)),
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help="Set obs_time [default=%(default)r]")
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parser.add_argument(
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"--samp-rate", dest="samp_rate", type=eng_float, default=eng_notation.num_to_str(float(2400000)),
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help="Set samp_rate [default=%(default)r]")
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return parser
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def main(top_block_cls=top_block, options=None):
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if options is None:
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options = argument_parser().parse_args()
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tb = top_block_cls(c_freq=options.c_freq, nbin=options.nbin, nchan=options.nchan, obs_time=options.obs_time, samp_rate=options.samp_rate)
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def sig_handler(sig=None, frame=None):
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tb.stop()
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tb.wait()
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sys.exit(0)
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signal.signal(signal.SIGINT, sig_handler)
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signal.signal(signal.SIGTERM, sig_handler)
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tb.start()
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tb.wait()
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if __name__ == '__main__':
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main()
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