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Add a generic IQ receiver 

This commit adds a generic IQ receiver supporting
arbitrary output sampling rate. It also allows the
user to disable or enable the Doppler correction applied.

The commit also drops the outdated fm_demod flowgraph.
This commit is contained in:
Manolis Surligas 2019-12-18 22:03:03 +02:00
parent 6b3fd6c406
commit 357e7a87a6
5 changed files with 818 additions and 3343 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
apps/CMakeLists.txt
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@ -23,7 +23,6 @@ add_subdirectory(flowgraphs/satellites)
GR_PYTHON_INSTALL(
PROGRAMS
flowgraphs/satnogs_fm_demod.py
flowgraphs/satnogs_cw_decoder.py
flowgraphs/satnogs_afsk1200_ax25.py
flowgraphs/satnogs_example_flowgraph.py

3006
apps/flowgraphs/fm_demod.grc
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File diff suppressed because it is too large Load Diff

473
apps/flowgraphs/iq_receiver.grc Normal file
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@ -0,0 +1,473 @@
options:
parameters:
author: Manolis Surligas (surligas@gmail.com)
category: '[GRC Hier Blocks]'
cmake_opt: ''
comment: ''
copyright: ''
description: Generic IQ receiver with arbitrary output sampling rate
gen_cmake: 'On'
gen_linking: dynamic
generate_options: no_gui
hier_block_src_path: '.:'
id: satnogs_iq_receiver
max_nouts: '0'
output_language: python
placement: (0,0)
qt_qss_theme: ''
realtime_scheduling: ''
run: 'True'
run_command: '{python} -u {filename}'
run_options: run
sizing_mode: fixed
thread_safe_setters: ''
title: satnogs_iq_receiver
window_size: 2*1080,1080
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [8, 4.0]
rotation: 0
state: enabled
blocks:
- name: antenna
id: parameter
parameters:
alias: ''
comment: ''
hide: none
label: ''
short_id: ''
type: str
value: ''
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [968, 12.0]
rotation: 0
state: enabled
- name: bw
id: parameter
parameters:
alias: ''
comment: 'The bandwidth should configure RF filters on some devices.
Set to 0.0 for automatic calculation.'
hide: none
label: Bandwidth
short_id: ''
type: eng_float
value: '0.0'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [1120, 12.0]
rotation: 0
state: enabled
- name: dev_args
id: parameter
parameters:
alias: ''
comment: ''
hide: none
label: Device arguments
short_id: ''
type: str
value: ''
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [520, 12.0]
rotation: 0
state: enabled
- name: doppler_correction_per_sec
id: parameter
parameters:
alias: ''
comment: ''
hide: none
label: ''
short_id: ''
type: intx
value: '20'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [16, 548.0]
rotation: 0
state: enabled
- name: enable_doppler_correction
id: parameter
parameters:
alias: ''
comment: ''
hide: none
label: ''
short_id: ''
type: intx
value: '1'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [176, 548.0]
rotation: 0
state: enabled
- name: enable_iq_dump
id: parameter
parameters:
alias: ''
comment: ''
hide: none
label: ''
short_id: ''
type: intx
value: '0'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [256, 468.0]
rotation: 0
state: enabled
- name: file_path
id: parameter
parameters:
alias: ''
comment: ''
hide: none
label: ''
short_id: ''
type: str
value: test.wav
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [160, 468.0]
rotation: 180
state: enabled
- name: gain
id: parameter
parameters:
alias: ''
comment: ''
hide: none
label: ''
short_id: ''
type: eng_float
value: '0.0'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [1048, 12.0]
rotation: 0
state: enabled
- name: import_0
id: import
parameters:
alias: ''
comment: ''
imports: import math
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [16, 164.0]
rotation: 0
state: enabled
- name: iq_file_path
id: parameter
parameters:
alias: ''
comment: ''
hide: none
label: ''
short_id: ''
type: str
value: /tmp/iq.dat
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [384, 468.0]
rotation: 0
state: enabled
- name: lo_offset
id: parameter
parameters:
alias: ''
comment: 'To avoid the SDR carrier at the DC
we shift the LO a little further'
hide: none
label: ''
short_id: ''
type: eng_float
value: 100e3
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [888, 12.0]
rotation: 0
state: enabled
- name: out_samp_rate
id: parameter
parameters:
alias: ''
comment: ''
hide: none
label: Output sampling rate
short_id: ''
type: eng_float
value: '0.0'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [1392, 12.0]
rotation: 0
state: enabled
- name: rigctl_port
id: parameter
parameters:
alias: ''
comment: ''
hide: none
label: ''
short_id: ''
type: intx
value: '4532'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [384, 548.0]
rotation: 0
state: enabled
- name: rx_freq
id: parameter
parameters:
alias: ''
comment: ''
hide: none
label: ''
short_id: ''
type: eng_float
value: 100e6
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [808, 12.0]
rotation: 0
state: enabled
- name: samp_rate_rx
id: parameter
parameters:
alias: ''
comment: ''
hide: none
label: Device Sampling rate
short_id: ''
type: eng_float
value: '0.0'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [656, 12.0]
rotation: 0
state: enabled
- name: satnogs_doppler_compensation_0
id: satnogs_doppler_compensation
parameters:
affinity: ''
alias: ''
comment: ''
compensate: enable_doppler_correction
lo_offset: lo_offset
maxoutbuf: '0'
minoutbuf: '0'
out_samp_rate: out_samp_rate
samp_rate: samp_rate_rx
sat_freq: rx_freq
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [656, 220.0]
rotation: 0
state: true
- name: satnogs_iq_sink_0
id: satnogs_iq_sink
parameters:
activate: '1'
affinity: ''
alias: ''
append: 'False'
comment: ''
filename: iq_file_path
scale: '16768'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [1104, 340.0]
rotation: 0
state: enabled
- name: satnogs_tcp_rigctl_msg_source_0
id: satnogs_tcp_rigctl_msg_source
parameters:
addr: '"127.0.0.1"'
affinity: ''
alias: ''
comment: ''
interval: int(1000.0/doppler_correction_per_sec) + 1
maxoutbuf: '0'
minoutbuf: '0'
mode: 'False'
mtu: '1500'
port: rigctl_port
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [400, 332.0]
rotation: 0
state: enabled
- name: satnogs_waterfall_sink_0
id: satnogs_waterfall_sink
parameters:
affinity: ''
alias: ''
center_freq: rx_freq
comment: ''
fft_size: '1024'
filename: waterfall_file_path
mode: '1'
rps: '10'
samp_rate: out_samp_rate
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [1104, 212.0]
rotation: 0
state: enabled
- name: soapy_rx_device
id: parameter
parameters:
alias: ''
comment: ''
hide: none
label: ''
short_id: ''
type: str
value: driver=invalid
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [400, 12.0]
rotation: 0
state: enabled
- name: soapy_source_0
id: soapy_source
parameters:
affinity: ''
alias: ''
amp_gain0: '0'
ant0: antenna
ant1: RX2
args: dev_args
balance0: '0'
balance1: '0'
bw0: bw
bw1: '0'
center_freq0: rx_freq - lo_offset
center_freq1: '0'
clock_rate: '0'
clock_source: ''
comment: ''
correction0: '0'
correction1: '0'
dc_offset0: '0'
dc_offset1: '0'
dc_offset_auto_mode0: 'False'
dc_offset_auto_mode1: 'False'
dev: soapy_rx_device
devname: custom
gain_auto_mode0: 'False'
gain_auto_mode1: 'False'
ifgr_gain: '59'
lna_gain0: '10'
lna_gain1: '10'
manual_gain0: 'False'
manual_gain1: 'True'
maxoutbuf: '0'
minoutbuf: '0'
mix_gain0: '10'
mix_gain1: '10'
nchan: '1'
nco_freq0: '0'
nco_freq1: '0'
overall_gain0: gain
overall_gain1: '10'
pga_gain0: '24'
pga_gain1: '24'
rfgr_gain: '9'
samp_rate: samp_rate_rx
sdrplay_agc_setpoint: '-30'
sdrplay_biastee: 'True'
sdrplay_dabnotch: 'False'
sdrplay_if_mode: Zero-IF
sdrplay_rfnotch: 'False'
tia_gain0: '0'
tia_gain1: '0'
tuner_gain0: '10'
tuner_gain1: '10'
type: fc32
vga_gain0: '10'
vga_gain1: '10'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [400, 196.0]
rotation: 0
state: true
- name: waterfall_file_path
id: parameter
parameters:
alias: ''
comment: ''
hide: none
label: ''
short_id: ''
type: str
value: /tmp/waterfall.dat
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [16, 468.0]
rotation: 0
state: enabled
connections:
- [satnogs_doppler_compensation_0, '0', satnogs_iq_sink_0, '0']
- [satnogs_doppler_compensation_0, '0', satnogs_waterfall_sink_0, '0']
- [satnogs_tcp_rigctl_msg_source_0, freq, satnogs_doppler_compensation_0, doppler]
- [soapy_source_0, '0', satnogs_doppler_compensation_0, '0']
metadata:
file_format: 1

336
apps/flowgraphs/satnogs_fm_demod.py
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@ -1,336 +0,0 @@
#!/usr/bin/env python2
# -*- coding: utf-8 -*-
##################################################
# GNU Radio Python Flow Graph
# Title: FM Generic Demodulation
# Author: Manolis Surligas (surligas@gmail.com)
# Description: A generic FM demodulation block
# GNU Radio version: 3.7.13.5
##################################################
from gnuradio import analog
from gnuradio import eng_notation
from gnuradio import filter
from gnuradio import gr
from gnuradio.eng_option import eng_option
from gnuradio.filter import firdes
from optparse import OptionParser
import math
import osmosdr
import satnogs
import time
class satnogs_fm_demod(gr.top_block):
def __init__(self, antenna=satnogs.not_set_antenna, bb_gain=satnogs.not_set_rx_bb_gain, decoded_data_file_path='/tmp/.satnogs/data/data', dev_args=satnogs.not_set_dev_args, doppler_correction_per_sec=20, enable_iq_dump=0, file_path='test.ogg', if_gain=satnogs.not_set_rx_if_gain, iq_file_path='/tmp/iq.dat', lo_offset=100e3, ppm=0, rf_gain=satnogs.not_set_rx_rf_gain, rigctl_port=4532, rx_freq=100e6, rx_sdr_device='usrpb200', waterfall_file_path='/tmp/waterfall.dat'):
gr.top_block.__init__(self, "FM Generic Demodulation")
##################################################
# Parameters
##################################################
self.antenna = antenna
self.bb_gain = bb_gain
self.decoded_data_file_path = decoded_data_file_path
self.dev_args = dev_args
self.doppler_correction_per_sec = doppler_correction_per_sec
self.enable_iq_dump = enable_iq_dump
self.file_path = file_path
self.if_gain = if_gain
self.iq_file_path = iq_file_path
self.lo_offset = lo_offset
self.ppm = ppm
self.rf_gain = rf_gain
self.rigctl_port = rigctl_port
self.rx_freq = rx_freq
self.rx_sdr_device = rx_sdr_device
self.waterfall_file_path = waterfall_file_path
##################################################
# Variables
##################################################
self.samp_rate_rx = samp_rate_rx = satnogs.hw_rx_settings[rx_sdr_device]['samp_rate']
self.xlate_filter_taps = xlate_filter_taps = firdes.low_pass(1, samp_rate_rx, 125000, 25000, firdes.WIN_HAMMING, 6.76)
self.taps = taps = firdes.low_pass(12.0, samp_rate_rx, 100e3, 60000, firdes.WIN_HAMMING, 6.76)
self.max_modulation_freq = max_modulation_freq = 3000
self.filter_rate = filter_rate = 250000
self.deviation = deviation = 5000
self.audio_samp_rate = audio_samp_rate = 48000
##################################################
# Blocks
##################################################
self.satnogs_waterfall_sink_0 = satnogs.waterfall_sink(audio_samp_rate, 0.0, 10, 1024, waterfall_file_path, 1)
self.satnogs_tcp_rigctl_msg_source_0 = satnogs.tcp_rigctl_msg_source("127.0.0.1", rigctl_port, False, int(1000.0/doppler_correction_per_sec) + 1, 1500)
self.satnogs_ogg_encoder_0 = satnogs.ogg_encoder(file_path, audio_samp_rate, 1.0)
self.satnogs_iq_sink_0 = satnogs.iq_sink(32767, iq_file_path, False, enable_iq_dump)
self.satnogs_coarse_doppler_correction_cc_0 = satnogs.coarse_doppler_correction_cc(rx_freq, samp_rate_rx)
self.osmosdr_source_0 = osmosdr.source( args="numchan=" + str(1) + " " + satnogs.handle_rx_dev_args(rx_sdr_device, dev_args) )
self.osmosdr_source_0.set_sample_rate(samp_rate_rx)
self.osmosdr_source_0.set_center_freq(rx_freq - lo_offset, 0)
self.osmosdr_source_0.set_freq_corr(ppm, 0)
self.osmosdr_source_0.set_dc_offset_mode(2, 0)
self.osmosdr_source_0.set_iq_balance_mode(0, 0)
self.osmosdr_source_0.set_gain_mode(False, 0)
self.osmosdr_source_0.set_gain(satnogs.handle_rx_rf_gain(rx_sdr_device, rf_gain), 0)
self.osmosdr_source_0.set_if_gain(satnogs.handle_rx_if_gain(rx_sdr_device, if_gain), 0)
self.osmosdr_source_0.set_bb_gain(satnogs.handle_rx_bb_gain(rx_sdr_device, bb_gain), 0)
self.osmosdr_source_0.set_antenna(satnogs.handle_rx_antenna(rx_sdr_device, antenna), 0)
self.osmosdr_source_0.set_bandwidth(samp_rate_rx, 0)
self.low_pass_filter_0 = filter.fir_filter_ccf(1, firdes.low_pass(
1, audio_samp_rate, deviation+max_modulation_freq, 3000, firdes.WIN_HAMMING, 6.76))
self.freq_xlating_fir_filter_xxx_0 = filter.freq_xlating_fir_filter_ccc(int(samp_rate_rx/filter_rate), (xlate_filter_taps), lo_offset, samp_rate_rx)
self.blks2_rational_resampler_xxx_1 = filter.rational_resampler_ccc(
interpolation=24,
decimation=125,
taps=None,
fractional_bw=None,
)
self.analog_quadrature_demod_cf_0 = analog.quadrature_demod_cf((2*math.pi*deviation)/audio_samp_rate)
##################################################
# Connections
##################################################
self.msg_connect((self.satnogs_tcp_rigctl_msg_source_0, 'freq'), (self.satnogs_coarse_doppler_correction_cc_0, 'freq'))
self.connect((self.analog_quadrature_demod_cf_0, 0), (self.satnogs_ogg_encoder_0, 0))
self.connect((self.blks2_rational_resampler_xxx_1, 0), (self.low_pass_filter_0, 0))
self.connect((self.blks2_rational_resampler_xxx_1, 0), (self.satnogs_iq_sink_0, 0))
self.connect((self.blks2_rational_resampler_xxx_1, 0), (self.satnogs_waterfall_sink_0, 0))
self.connect((self.freq_xlating_fir_filter_xxx_0, 0), (self.blks2_rational_resampler_xxx_1, 0))
self.connect((self.low_pass_filter_0, 0), (self.analog_quadrature_demod_cf_0, 0))
self.connect((self.osmosdr_source_0, 0), (self.satnogs_coarse_doppler_correction_cc_0, 0))
self.connect((self.satnogs_coarse_doppler_correction_cc_0, 0), (self.freq_xlating_fir_filter_xxx_0, 0))
def get_antenna(self):
return self.antenna
def set_antenna(self, antenna):
self.antenna = antenna
self.osmosdr_source_0.set_antenna(satnogs.handle_rx_antenna(self.rx_sdr_device, self.antenna), 0)
def get_bb_gain(self):
return self.bb_gain
def set_bb_gain(self, bb_gain):
self.bb_gain = bb_gain
self.osmosdr_source_0.set_bb_gain(satnogs.handle_rx_bb_gain(self.rx_sdr_device, self.bb_gain), 0)
def get_decoded_data_file_path(self):
return self.decoded_data_file_path
def set_decoded_data_file_path(self, decoded_data_file_path):
self.decoded_data_file_path = decoded_data_file_path
def get_dev_args(self):
return self.dev_args
def set_dev_args(self, dev_args):
self.dev_args = dev_args
def get_doppler_correction_per_sec(self):
return self.doppler_correction_per_sec
def set_doppler_correction_per_sec(self, doppler_correction_per_sec):
self.doppler_correction_per_sec = doppler_correction_per_sec
def get_enable_iq_dump(self):
return self.enable_iq_dump
def set_enable_iq_dump(self, enable_iq_dump):
self.enable_iq_dump = enable_iq_dump
def get_file_path(self):
return self.file_path
def set_file_path(self, file_path):
self.file_path = file_path
def get_if_gain(self):
return self.if_gain
def set_if_gain(self, if_gain):
self.if_gain = if_gain
self.osmosdr_source_0.set_if_gain(satnogs.handle_rx_if_gain(self.rx_sdr_device, self.if_gain), 0)
def get_iq_file_path(self):
return self.iq_file_path
def set_iq_file_path(self, iq_file_path):
self.iq_file_path = iq_file_path
def get_lo_offset(self):
return self.lo_offset
def set_lo_offset(self, lo_offset):
self.lo_offset = lo_offset
self.osmosdr_source_0.set_center_freq(self.rx_freq - self.lo_offset, 0)
self.freq_xlating_fir_filter_xxx_0.set_center_freq(self.lo_offset)
def get_ppm(self):
return self.ppm
def set_ppm(self, ppm):
self.ppm = ppm
self.osmosdr_source_0.set_freq_corr(self.ppm, 0)
def get_rf_gain(self):
return self.rf_gain
def set_rf_gain(self, rf_gain):
self.rf_gain = rf_gain
self.osmosdr_source_0.set_gain(satnogs.handle_rx_rf_gain(self.rx_sdr_device, self.rf_gain), 0)
def get_rigctl_port(self):
return self.rigctl_port
def set_rigctl_port(self, rigctl_port):
self.rigctl_port = rigctl_port
def get_rx_freq(self):
return self.rx_freq
def set_rx_freq(self, rx_freq):
self.rx_freq = rx_freq
self.satnogs_coarse_doppler_correction_cc_0.set_new_freq_locked(self.rx_freq)
self.osmosdr_source_0.set_center_freq(self.rx_freq - self.lo_offset, 0)
def get_rx_sdr_device(self):
return self.rx_sdr_device
def set_rx_sdr_device(self, rx_sdr_device):
self.rx_sdr_device = rx_sdr_device
self.set_samp_rate_rx(satnogs.hw_rx_settings[self.rx_sdr_device]['samp_rate'])
self.osmosdr_source_0.set_gain(satnogs.handle_rx_rf_gain(self.rx_sdr_device, self.rf_gain), 0)
self.osmosdr_source_0.set_if_gain(satnogs.handle_rx_if_gain(self.rx_sdr_device, self.if_gain), 0)
self.osmosdr_source_0.set_bb_gain(satnogs.handle_rx_bb_gain(self.rx_sdr_device, self.bb_gain), 0)
self.osmosdr_source_0.set_antenna(satnogs.handle_rx_antenna(self.rx_sdr_device, self.antenna), 0)
def get_waterfall_file_path(self):
return self.waterfall_file_path
def set_waterfall_file_path(self, waterfall_file_path):
self.waterfall_file_path = waterfall_file_path
def get_samp_rate_rx(self):
return self.samp_rate_rx
def set_samp_rate_rx(self, samp_rate_rx):
self.samp_rate_rx = samp_rate_rx
self.set_xlate_filter_taps(firdes.low_pass(1, self.samp_rate_rx, 125000, 25000, firdes.WIN_HAMMING, 6.76))
self.osmosdr_source_0.set_sample_rate(self.samp_rate_rx)
self.osmosdr_source_0.set_bandwidth(self.samp_rate_rx, 0)
def get_xlate_filter_taps(self):
return self.xlate_filter_taps
def set_xlate_filter_taps(self, xlate_filter_taps):
self.xlate_filter_taps = xlate_filter_taps
self.freq_xlating_fir_filter_xxx_0.set_taps((self.xlate_filter_taps))
def get_taps(self):
return self.taps
def set_taps(self, taps):
self.taps = taps
def get_max_modulation_freq(self):
return self.max_modulation_freq
def set_max_modulation_freq(self, max_modulation_freq):
self.max_modulation_freq = max_modulation_freq
self.low_pass_filter_0.set_taps(firdes.low_pass(1, self.audio_samp_rate, self.deviation+self.max_modulation_freq, 3000, firdes.WIN_HAMMING, 6.76))
def get_filter_rate(self):
return self.filter_rate
def set_filter_rate(self, filter_rate):
self.filter_rate = filter_rate
def get_deviation(self):
return self.deviation
def set_deviation(self, deviation):
self.deviation = deviation
self.low_pass_filter_0.set_taps(firdes.low_pass(1, self.audio_samp_rate, self.deviation+self.max_modulation_freq, 3000, firdes.WIN_HAMMING, 6.76))
self.analog_quadrature_demod_cf_0.set_gain((2*math.pi*self.deviation)/self.audio_samp_rate)
def get_audio_samp_rate(self):
return self.audio_samp_rate
def set_audio_samp_rate(self, audio_samp_rate):
self.audio_samp_rate = audio_samp_rate
self.low_pass_filter_0.set_taps(firdes.low_pass(1, self.audio_samp_rate, self.deviation+self.max_modulation_freq, 3000, firdes.WIN_HAMMING, 6.76))
self.analog_quadrature_demod_cf_0.set_gain((2*math.pi*self.deviation)/self.audio_samp_rate)
def argument_parser():
description = 'A generic FM demodulation block'
parser = OptionParser(usage="%prog: [options]", option_class=eng_option, description=description)
parser.add_option(
"", "--antenna", dest="antenna", type="string", default=satnogs.not_set_antenna,
help="Set antenna [default=%default]")
parser.add_option(
"", "--bb-gain", dest="bb_gain", type="eng_float", default=eng_notation.num_to_str(satnogs.not_set_rx_bb_gain),
help="Set bb_gain [default=%default]")
parser.add_option(
"", "--decoded-data-file-path", dest="decoded_data_file_path", type="string", default='/tmp/.satnogs/data/data',
help="Set decoded_data_file_path [default=%default]")
parser.add_option(
"", "--dev-args", dest="dev_args", type="string", default=satnogs.not_set_dev_args,
help="Set dev_args [default=%default]")
parser.add_option(
"", "--doppler-correction-per-sec", dest="doppler_correction_per_sec", type="intx", default=20,
help="Set doppler_correction_per_sec [default=%default]")
parser.add_option(
"", "--enable-iq-dump", dest="enable_iq_dump", type="intx", default=0,
help="Set enable_iq_dump [default=%default]")
parser.add_option(
"", "--file-path", dest="file_path", type="string", default='test.ogg',
help="Set file_path [default=%default]")
parser.add_option(
"", "--if-gain", dest="if_gain", type="eng_float", default=eng_notation.num_to_str(satnogs.not_set_rx_if_gain),
help="Set if_gain [default=%default]")
parser.add_option(
"", "--iq-file-path", dest="iq_file_path", type="string", default='/tmp/iq.dat',
help="Set iq_file_path [default=%default]")
parser.add_option(
"", "--lo-offset", dest="lo_offset", type="eng_float", default=eng_notation.num_to_str(100e3),
help="Set lo_offset [default=%default]")
parser.add_option(
"", "--ppm", dest="ppm", type="intx", default=0,
help="Set ppm [default=%default]")
parser.add_option(
"", "--rf-gain", dest="rf_gain", type="eng_float", default=eng_notation.num_to_str(satnogs.not_set_rx_rf_gain),
help="Set rf_gain [default=%default]")
parser.add_option(
"", "--rigctl-port", dest="rigctl_port", type="intx", default=4532,
help="Set rigctl_port [default=%default]")
parser.add_option(
"", "--rx-freq", dest="rx_freq", type="eng_float", default=eng_notation.num_to_str(100e6),
help="Set rx_freq [default=%default]")
parser.add_option(
"", "--rx-sdr-device", dest="rx_sdr_device", type="string", default='usrpb200',
help="Set rx_sdr_device [default=%default]")
parser.add_option(
"", "--waterfall-file-path", dest="waterfall_file_path", type="string", default='/tmp/waterfall.dat',
help="Set waterfall_file_path [default=%default]")
return parser
def main(top_block_cls=satnogs_fm_demod, options=None):
if options is None:
options, _ = argument_parser().parse_args()
tb = top_block_cls(antenna=options.antenna, bb_gain=options.bb_gain, decoded_data_file_path=options.decoded_data_file_path, dev_args=options.dev_args, doppler_correction_per_sec=options.doppler_correction_per_sec, enable_iq_dump=options.enable_iq_dump, file_path=options.file_path, if_gain=options.if_gain, iq_file_path=options.iq_file_path, lo_offset=options.lo_offset, ppm=options.ppm, rf_gain=options.rf_gain, rigctl_port=options.rigctl_port, rx_freq=options.rx_freq, rx_sdr_device=options.rx_sdr_device, waterfall_file_path=options.waterfall_file_path)
tb.start()
tb.wait()
if __name__ == '__main__':
main()

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apps/flowgraphs/satnogs_iq_receiver.py Executable file
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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
#
# SPDX-License-Identifier: GPL-3.0
#
# GNU Radio Python Flow Graph
# Title: satnogs_iq_receiver
# Author: Manolis Surligas (surligas@gmail.com)
# Description: Generic IQ receiver with arbitrary output sampling rate
# GNU Radio version: 3.8.0.0
from gnuradio import gr
from gnuradio.filter import firdes
import sys
import signal
from argparse import ArgumentParser
from gnuradio.eng_arg import eng_float, intx
from gnuradio import eng_notation
import math
import satnogs
import soapy
class satnogs_iq_receiver(gr.top_block):
def __init__(self, antenna='', bw=0.0, dev_args='', doppler_correction_per_sec=20, enable_doppler_correction=1, enable_iq_dump=0, file_path='test.wav', gain=0.0, iq_file_path='/tmp/iq.dat', lo_offset=100e3, out_samp_rate=0.0, rigctl_port=4532, rx_freq=100e6, samp_rate_rx=0.0, soapy_rx_device='driver=invalid', waterfall_file_path='/tmp/waterfall.dat'):
gr.top_block.__init__(self, "satnogs_iq_receiver")
##################################################
# Parameters
##################################################
self.antenna = antenna
self.bw = bw
self.dev_args = dev_args
self.doppler_correction_per_sec = doppler_correction_per_sec
self.enable_doppler_correction = enable_doppler_correction
self.enable_iq_dump = enable_iq_dump
self.file_path = file_path
self.gain = gain
self.iq_file_path = iq_file_path
self.lo_offset = lo_offset
self.out_samp_rate = out_samp_rate
self.rigctl_port = rigctl_port
self.rx_freq = rx_freq
self.samp_rate_rx = samp_rate_rx
self.soapy_rx_device = soapy_rx_device
self.waterfall_file_path = waterfall_file_path
##################################################
# Blocks
##################################################
self.soapy_source_0 = None
if "custom" == 'custom':
dev = soapy_rx_device
else:
dev = 'driver=' + "custom"
if "custom" == 'sdrplay':
f = 'if_mode=' + "Zero-IF" + ',' + 'agc_setpoint=' + str("-30") + ',' + 'biasT_ctrl=' + "True".lower() + ',' + 'rfnotch_ctrl=' + "False".lower() + ',' + 'dabnotch_ctrl=' + "False".lower() + ',' + str(dev_args)
f = f.replace('\"', '')
f = f.replace("\\'", '')
f = f.strip(',')
self.soapy_source_0 = soapy.source(1, dev, f, samp_rate_rx, "fc32")
else:
self.soapy_source_0 = soapy.source(1, dev, dev_args, samp_rate_rx, "fc32")
if 0 != 0:
self.soapy_source_0.set_master_clock_rate(0)
if len('') > 0:
self.soapy_source_0.set_clock_source('')
# Set up dc offsets
if "custom" != 'uhd':
if (self.soapy_source_0.hasDCOffset(0)):
self.soapy_source_0.set_dc_offset(0,0,False == 'True')
if (self.soapy_source_0.hasDCOffset(1)):
self.soapy_source_0.set_dc_offset(1,0,False == 'True')
# Setup IQ Balance
if "custom" != 'uhd':
if (self.soapy_source_0.hasIQBalance(0)):
self.soapy_source_0.set_iq_balance(0,0)
if (self.soapy_source_0.hasIQBalance(1)):
self.soapy_source_0.set_iq_balance(1,0)
# Setup Frequency correction
if (self.soapy_source_0.hasFrequencyCorrection(0)):
self.soapy_source_0.set_frequency_correction(0,0)
if (self.soapy_source_0.hasFrequencyCorrection(1)):
self.soapy_source_0.set_frequency_correction(1,0)
self.soapy_source_0.set_gain_mode(0,False)
self.soapy_source_0.set_gain_mode(1,False)
self.soapy_source_0.set_frequency(0, rx_freq - lo_offset)
self.soapy_source_0.set_frequency(1, 0)
# Made antenna sanity check more generic
antList = self.soapy_source_0.listAntennas(0)
if len(antList) > 1:
# If we have more than 1 possible antenna
if len(antenna) == 0 or antenna not in antList:
print("ERROR: Please define ant0 to an allowed antenna name.")
strAntList = str(antList).lstrip('(').rstrip(')').rstrip(',')
print("Allowed antennas: " + strAntList)
exit(0)
self.soapy_source_0.set_antenna(0,antenna)
if 1 > 1:
antList = self.soapy_source_0.listAntennas(1)
# If we have more than 1 possible antenna
if len(antList) > 1:
if len('RX2') == 0 or 'RX2' not in antList:
print("ERROR: Please define ant1 to an allowed antenna name.")
strAntList = str(antList).lstrip('(').rstrip(')').rstrip(',')
print("Allowed antennas: " + strAntList)
exit(0)
self.soapy_source_0.set_antenna(1,'RX2')
self.soapy_source_0.set_overall_gain(0,gain, False )
self.soapy_source_0.set_overall_gain(1,10, True )
# Prevent some weird double-gain setting issues for systems with an overall_gain setting
# noticed weird behavior with uhd
if "custom" == 'uhd' or "custom" == 'sidekiq' or "custom" == 'bladerf' or "custom" == 'lime':
self.soapy_source_0.set_gain(0,"PGA", 24, False )
self.soapy_source_0.set_gain(1,"PGA", 24, True )
else:
if "custom" == 'custom':
# If we're here and we're custom, let's still call overall gain
self.soapy_source_0.set_overall_gain(0,gain, False )
self.soapy_source_0.set_overall_gain(1,10, True )
self.soapy_source_0.set_gain(0,"LNA", 10, False )
self.soapy_source_0.set_gain(1,"LNA", 10, True )
self.soapy_source_0.set_gain(0,"TIA", 0, False )
self.soapy_source_0.set_gain(1,"TIA", 0, True )
self.soapy_source_0.set_gain(0,"MIX", 10, False )
self.soapy_source_0.set_gain(1,"MIX", 10, True )
self.soapy_source_0.set_gain(0,"VGA", 10, False )
self.soapy_source_0.set_gain(1,"VGA", 10, True )
# Only rtl-sdr uses TUNER, so just ch0
self.soapy_source_0.set_gain(0,"TUNER", 10, False )
# Only hackrf uses "AMP", so just ch0
self.soapy_source_0.set_gain(0,"AMP", 0, False )
# Only sdrplay uses IFGR so just ch0 for each
self.soapy_source_0.set_gain(0,"IFGR", 59, False )
self.soapy_source_0.set_gain(0,"RFGR", 9, False )
self.satnogs_waterfall_sink_0 = satnogs.waterfall_sink(out_samp_rate, rx_freq, 10, 1024, waterfall_file_path, 1)
self.satnogs_tcp_rigctl_msg_source_0 = satnogs.tcp_rigctl_msg_source("127.0.0.1", rigctl_port, False, int(1000.0/doppler_correction_per_sec) + 1, 1500)
self.satnogs_iq_sink_0 = satnogs.iq_sink(16768, iq_file_path, False, 1)
self.satnogs_doppler_compensation_0 = satnogs.doppler_compensation(samp_rate_rx, rx_freq, lo_offset, out_samp_rate, enable_doppler_correction)
##################################################
# Connections
##################################################
self.msg_connect((self.satnogs_tcp_rigctl_msg_source_0, 'freq'), (self.satnogs_doppler_compensation_0, 'doppler'))
self.connect((self.satnogs_doppler_compensation_0, 0), (self.satnogs_iq_sink_0, 0))
self.connect((self.satnogs_doppler_compensation_0, 0), (self.satnogs_waterfall_sink_0, 0))
self.connect((self.soapy_source_0, 0), (self.satnogs_doppler_compensation_0, 0))
def get_antenna(self):
return self.antenna
def set_antenna(self, antenna):
self.antenna = antenna
self.soapy_source_0.set_antenna(0,self.antenna)
def get_bw(self):
return self.bw
def set_bw(self, bw):
self.bw = bw
self.soapy_source_0.set_bandwidth(0,self.bw)
def get_dev_args(self):
return self.dev_args
def set_dev_args(self, dev_args):
self.dev_args = dev_args
def get_doppler_correction_per_sec(self):
return self.doppler_correction_per_sec
def set_doppler_correction_per_sec(self, doppler_correction_per_sec):
self.doppler_correction_per_sec = doppler_correction_per_sec
def get_enable_doppler_correction(self):
return self.enable_doppler_correction
def set_enable_doppler_correction(self, enable_doppler_correction):
self.enable_doppler_correction = enable_doppler_correction
def get_enable_iq_dump(self):
return self.enable_iq_dump
def set_enable_iq_dump(self, enable_iq_dump):
self.enable_iq_dump = enable_iq_dump
def get_file_path(self):
return self.file_path
def set_file_path(self, file_path):
self.file_path = file_path
def get_gain(self):
return self.gain
def set_gain(self, gain):
self.gain = gain
self.soapy_source_0.set_overall_gain(0,self.gain, False )
def get_iq_file_path(self):
return self.iq_file_path
def set_iq_file_path(self, iq_file_path):
self.iq_file_path = iq_file_path
self.satnogs_iq_sink_0.open(self.iq_file_path)
def get_lo_offset(self):
return self.lo_offset
def set_lo_offset(self, lo_offset):
self.lo_offset = lo_offset
self.soapy_source_0.set_frequency(0, self.rx_freq - self.lo_offset)
def get_out_samp_rate(self):
return self.out_samp_rate
def set_out_samp_rate(self, out_samp_rate):
self.out_samp_rate = out_samp_rate
def get_rigctl_port(self):
return self.rigctl_port
def set_rigctl_port(self, rigctl_port):
self.rigctl_port = rigctl_port
def get_rx_freq(self):
return self.rx_freq
def set_rx_freq(self, rx_freq):
self.rx_freq = rx_freq
self.soapy_source_0.set_frequency(0, self.rx_freq - self.lo_offset)
def get_samp_rate_rx(self):
return self.samp_rate_rx
def set_samp_rate_rx(self, samp_rate_rx):
self.samp_rate_rx = samp_rate_rx
def get_soapy_rx_device(self):
return self.soapy_rx_device
def set_soapy_rx_device(self, soapy_rx_device):
self.soapy_rx_device = soapy_rx_device
def get_waterfall_file_path(self):
return self.waterfall_file_path
def set_waterfall_file_path(self, waterfall_file_path):
self.waterfall_file_path = waterfall_file_path
def argument_parser():
description = 'Generic IQ receiver with arbitrary output sampling rate'
parser = ArgumentParser(description=description)
parser.add_argument(
"--antenna", dest="antenna", type=str, default='',
help="Set antenna [default=%(default)r]")
parser.add_argument(
"--bw", dest="bw", type=eng_float, default="0.0",
help="Set Bandwidth [default=%(default)r]")
parser.add_argument(
"--dev-args", dest="dev_args", type=str, default='',
help="Set Device arguments [default=%(default)r]")
parser.add_argument(
"--doppler-correction-per-sec", dest="doppler_correction_per_sec", type=intx, default=20,
help="Set doppler_correction_per_sec [default=%(default)r]")
parser.add_argument(
"--enable-doppler-correction", dest="enable_doppler_correction", type=intx, default=1,
help="Set enable_doppler_correction [default=%(default)r]")
parser.add_argument(
"--enable-iq-dump", dest="enable_iq_dump", type=intx, default=0,
help="Set enable_iq_dump [default=%(default)r]")
parser.add_argument(
"--file-path", dest="file_path", type=str, default='test.wav',
help="Set file_path [default=%(default)r]")
parser.add_argument(
"--gain", dest="gain", type=eng_float, default="0.0",
help="Set gain [default=%(default)r]")
parser.add_argument(
"--iq-file-path", dest="iq_file_path", type=str, default='/tmp/iq.dat',
help="Set iq_file_path [default=%(default)r]")
parser.add_argument(
"--lo-offset", dest="lo_offset", type=eng_float, default="100.0k",
help="Set lo_offset [default=%(default)r]")
parser.add_argument(
"--out-samp-rate", dest="out_samp_rate", type=eng_float, default="0.0",
help="Set Output sampling rate [default=%(default)r]")
parser.add_argument(
"--rigctl-port", dest="rigctl_port", type=intx, default=4532,
help="Set rigctl_port [default=%(default)r]")
parser.add_argument(
"--rx-freq", dest="rx_freq", type=eng_float, default="100.0M",
help="Set rx_freq [default=%(default)r]")
parser.add_argument(
"--samp-rate-rx", dest="samp_rate_rx", type=eng_float, default="0.0",
help="Set Device Sampling rate [default=%(default)r]")
parser.add_argument(
"--soapy-rx-device", dest="soapy_rx_device", type=str, default='driver=invalid',
help="Set soapy_rx_device [default=%(default)r]")
parser.add_argument(
"--waterfall-file-path", dest="waterfall_file_path", type=str, default='/tmp/waterfall.dat',
help="Set waterfall_file_path [default=%(default)r]")
return parser
def main(top_block_cls=satnogs_iq_receiver, options=None):
if options is None:
options = argument_parser().parse_args()
tb = top_block_cls(antenna=options.antenna, bw=options.bw, dev_args=options.dev_args, doppler_correction_per_sec=options.doppler_correction_per_sec, enable_doppler_correction=options.enable_doppler_correction, enable_iq_dump=options.enable_iq_dump, file_path=options.file_path, gain=options.gain, iq_file_path=options.iq_file_path, lo_offset=options.lo_offset, out_samp_rate=options.out_samp_rate, rigctl_port=options.rigctl_port, rx_freq=options.rx_freq, samp_rate_rx=options.samp_rate_rx, soapy_rx_device=options.soapy_rx_device, waterfall_file_path=options.waterfall_file_path)
def sig_handler(sig=None, frame=None):
tb.stop()
tb.wait()
sys.exit(0)
signal.signal(signal.SIGINT, sig_handler)
signal.signal(signal.SIGTERM, sig_handler)
tb.start()
tb.wait()
if __name__ == '__main__':
main()