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Reverse engineered loop from gnuradio

This commit is contained in:
Sebastian 2021-11-24 22:28:23 +01:00
parent 05df7a7c02
commit 1cf8c2f6db
7 changed files with 1363 additions and 45 deletions
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2
.gitignore vendored Normal file
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@ -0,0 +1,2 @@
*.raw
*.py

623
audio_costas.grc Normal file
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@ -0,0 +1,623 @@
options:
parameters:
author: sebastian
catch_exceptions: 'True'
category: '[GRC Hier Blocks]'
cmake_opt: ''
comment: ''
copyright: ''
description: ''
gen_cmake: 'On'
gen_linking: dynamic
generate_options: qt_gui
hier_block_src_path: '.:'
id: from_audio
max_nouts: '0'
output_language: python
placement: (0,0)
qt_qss_theme: ''
realtime_scheduling: ''
run: 'True'
run_command: '{python} -u {filename}'
run_options: prompt
sizing_mode: fixed
thread_safe_setters: ''
title: Not titled yet
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [8, 8]
rotation: 0
state: enabled
blocks:
- name: enable_loop
id: variable_qtgui_check_box
parameters:
comment: ''
'false': '0'
gui_hint: ''
label: Enable
'true': '1'
type: real
value: '0'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [1968, 284.0]
rotation: 0
state: true
- name: samp_rate
id: variable
parameters:
comment: ''
value: '100000'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [184, 12]
rotation: 0
state: enabled
- name: analog_agc2_xx_0
id: analog_agc2_xx
parameters:
affinity: ''
alias: ''
attack_rate: '0.03'
comment: ''
decay_rate: '0.3'
gain: '10'
max_gain: '65536'
maxoutbuf: '0'
minoutbuf: '0'
reference: '0.9'
type: complex
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [1472, 188.0]
rotation: 0
state: true
- name: analog_noise_source_x_0
id: analog_noise_source_x
parameters:
affinity: ''
alias: ''
amp: '0.001'
comment: ''
maxoutbuf: '0'
minoutbuf: '0'
noise_type: analog.GR_GAUSSIAN
seed: '0'
type: complex
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [440, 204.0]
rotation: 0
state: true
- name: analog_sig_source_x_0
id: analog_sig_source_x
parameters:
affinity: ''
alias: ''
amp: '1'
comment: ''
freq: '25000'
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: [416, 284.0]
rotation: 0
state: true
- name: analog_sig_source_x_0_0
id: analog_sig_source_x
parameters:
affinity: ''
alias: ''
amp: '1'
comment: ''
freq: '0.05'
maxoutbuf: '0'
minoutbuf: '0'
offset: '0'
phase: '0'
samp_rate: samp_rate
type: float
waveform: analog.GR_COS_WAVE
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [408, 420.0]
rotation: 0
state: true
- name: analog_sig_source_x_0_1
id: analog_sig_source_x
parameters:
affinity: ''
alias: ''
amp: '1'
comment: ''
freq: '-25000'
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: [1016, 348.0]
rotation: 0
state: true
- name: audio_source_0
id: audio_source
parameters:
affinity: ''
alias: ''
comment: ''
device_name: ''
maxoutbuf: '0'
minoutbuf: '0'
num_outputs: '1'
ok_to_block: 'True'
samp_rate: '48000'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [88, 172.0]
rotation: 0
state: true
- name: band_pass_filter_0
id: band_pass_filter
parameters:
affinity: ''
alias: ''
beta: '6.76'
comment: ''
decim: '1'
gain: '1'
high_cutoff_freq: '10000'
interp: '1'
low_cutoff_freq: '0'
maxoutbuf: '0'
minoutbuf: '0'
samp_rate: samp_rate
type: fir_filter_fcc
width: '100'
win: window.WIN_HAMMING
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [480, 44.0]
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: [672, 104.0]
rotation: 0
state: true
- name: blocks_multiply_const_xx_0
id: blocks_multiply_const_xx
parameters:
affinity: ''
alias: ''
comment: ''
const: enable_loop
maxoutbuf: '0'
minoutbuf: '0'
type: float
vlen: '1'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [1892.0, 272]
rotation: 270
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: [752, 176.0]
rotation: 0
state: true
- name: blocks_multiply_xx_0_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: [888, 192.0]
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: [1352, 208.0]
rotation: 0
state: true
- name: blocks_multiply_xx_2
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: [1664, 456.0]
rotation: 0
state: true
- name: blocks_vco_c_0
id: blocks_vco_c
parameters:
affinity: ''
alias: ''
amplitude: '1.0'
comment: ''
maxoutbuf: '0'
minoutbuf: '0'
samp_rate: samp_rate
sensitivity: '5000'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [712, 444.0]
rotation: 0
state: true
- name: blocks_vco_c_1
id: blocks_vco_c
parameters:
affinity: ''
alias: ''
amplitude: '1.0'
comment: ''
maxoutbuf: '0'
minoutbuf: '0'
samp_rate: samp_rate
sensitivity: '-100000'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [1664, 332.0]
rotation: 180
state: true
- name: digital_costas_loop_cc_0
id: digital_costas_loop_cc
parameters:
affinity: ''
alias: ''
comment: ''
maxoutbuf: '0'
minoutbuf: '0'
order: '2'
use_snr: 'True'
w: '0.03'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [1672, 192.0]
rotation: 0
state: true
- name: qtgui_freq_sink_x_0
id: qtgui_freq_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: 'False'
average: '1.0'
axislabels: 'True'
bw: samp_rate
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'
fc: '0'
fftsize: '4096'
freqhalf: 'True'
grid: 'False'
gui_hint: ''
label: Relative Gain
label1: ''
label10: ''''''
label2: ''''''
label3: ''''''
label4: ''''''
label5: ''''''
label6: ''''''
label7: ''''''
label8: ''''''
label9: ''''''
legend: 'True'
maxoutbuf: '0'
minoutbuf: '0'
name: '"Loop Output"'
nconnections: '1'
norm_window: 'False'
showports: 'False'
tr_chan: '0'
tr_level: '0.0'
tr_mode: qtgui.TRIG_MODE_FREE
tr_tag: '""'
type: complex
units: dB
update_time: '0.10'
width1: '1'
width10: '1'
width2: '1'
width3: '1'
width4: '1'
width5: '1'
width6: '1'
width7: '1'
width8: '1'
width9: '1'
wintype: window.WIN_BLACKMAN_hARRIS
ymax: '10'
ymin: '-140'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [1880, 92.0]
rotation: 0
state: true
- name: qtgui_waterfall_sink_x_0
id: qtgui_waterfall_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'
axislabels: 'True'
bw: samp_rate
color1: '0'
color10: '0'
color2: '0'
color3: '0'
color4: '0'
color5: '0'
color6: '0'
color7: '0'
color8: '0'
color9: '0'
comment: ''
fc: '0'
fftsize: '4096'
freqhalf: 'True'
grid: 'False'
gui_hint: ''
int_max: '10'
int_min: '-140'
label1: ''
label10: ''
label2: ''
label3: ''
label4: ''
label5: ''
label6: ''
label7: ''
label8: ''
label9: ''
legend: 'True'
maxoutbuf: '0'
minoutbuf: '0'
name: '"Input"'
nconnections: '1'
showports: 'False'
type: complex
update_time: '0.10'
wintype: window.WIN_BLACKMAN_hARRIS
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [1032, 92.0]
rotation: 0
state: true
- name: qtgui_waterfall_sink_x_0_0
id: qtgui_waterfall_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'
axislabels: 'True'
bw: samp_rate
color1: '0'
color10: '0'
color2: '0'
color3: '0'
color4: '0'
color5: '0'
color6: '0'
color7: '0'
color8: '0'
color9: '0'
comment: ''
fc: '0'
fftsize: '4096'
freqhalf: 'True'
grid: 'False'
gui_hint: ''
int_max: '10'
int_min: '-140'
label1: ''
label10: ''
label2: ''
label3: ''
label4: ''
label5: ''
label6: ''
label7: ''
label8: ''
label9: ''
legend: 'True'
maxoutbuf: '0'
minoutbuf: '0'
name: '"Stabilzed Output"'
nconnections: '1'
showports: 'False'
type: complex
update_time: '0.10'
wintype: window.WIN_BLACKMAN_hARRIS
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [1848, 452.0]
rotation: 0
state: true
- name: rational_resampler_xxx_0
id: rational_resampler_xxx
parameters:
affinity: ''
alias: ''
comment: ''
decim: '48000'
fbw: '0'
interp: samp_rate
maxoutbuf: '0'
minoutbuf: '0'
taps: '[]'
type: fff
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [288, 148.0]
rotation: 0
state: true
connections:
- [analog_agc2_xx_0, '0', digital_costas_loop_cc_0, '0']
- [analog_noise_source_x_0, '0', blocks_add_xx_0, '1']
- [analog_sig_source_x_0, '0', blocks_multiply_xx_0, '1']
- [analog_sig_source_x_0_0, '0', blocks_vco_c_0, '0']
- [analog_sig_source_x_0_1, '0', blocks_multiply_xx_1, '1']
- [audio_source_0, '0', rational_resampler_xxx_0, '0']
- [band_pass_filter_0, '0', blocks_add_xx_0, '0']
- [blocks_add_xx_0, '0', blocks_multiply_xx_0, '0']
- [blocks_multiply_const_xx_0, '0', blocks_vco_c_1, '0']
- [blocks_multiply_xx_0, '0', blocks_multiply_xx_0_0, '0']
- [blocks_multiply_xx_0_0, '0', blocks_multiply_xx_1, '0']
- [blocks_multiply_xx_0_0, '0', blocks_multiply_xx_2, '1']
- [blocks_multiply_xx_0_0, '0', qtgui_waterfall_sink_x_0, '0']
- [blocks_multiply_xx_1, '0', analog_agc2_xx_0, '0']
- [blocks_multiply_xx_2, '0', qtgui_waterfall_sink_x_0_0, '0']
- [blocks_vco_c_0, '0', blocks_multiply_xx_0_0, '1']
- [blocks_vco_c_1, '0', blocks_multiply_xx_2, '0']
- [digital_costas_loop_cc_0, '0', qtgui_freq_sink_x_0, '0']
- [digital_costas_loop_cc_0, '1', blocks_multiply_const_xx_0, '0']
- [rational_resampler_xxx_0, '0', band_pass_filter_0, '0']
metadata:
file_format: 1

71
costas.c
View File

@ -6,23 +6,6 @@
const float SAMPLINGRATE = 100000.0;
const float EXPECTED_CENTER = 25000.0;
// 15khz lowpass
float LOWPASS_COEFFS[37] = {
-0.0013484122464433312,-0.0015524507034569979,-0.0012626417446881533,
1.106597777377648e-18,0.0025128561537712812,0.005701862741261721,
0.007837646640837193,0.006523041054606438,-3.595113471383589e-18,
-0.011250422336161137,-0.02350831776857376,-0.03022352233529091,
-0.02406340278685093,6.529514774129222e-18,0.04183189943432808,
0.09489838778972626,0.14748811721801758,0.18619666993618011,
0.20043739676475525,0.18619666993618011,0.14748811721801758,
0.09489838778972626,0.04183189943432808,6.529514774129222e-18,
-0.02406340278685093,-0.03022352233529091,-0.02350831776857376,
-0.011250422336161137,-3.595113471383589e-18,0.006523041054606438,
0.007837646640837193,0.005701862741261721,0.0025128561537712812,
1.106597777377648e-18,-0.0012626417446881533,-0.0015524507034569979,
-0.0013484122464433312
};
int main() {
// create the NCO object
@ -31,21 +14,27 @@ int main() {
float freq = -(2 * M_PI * EXPECTED_CENTER) / SAMPLINGRATE;
nco_crcf_set_frequency(downmix, freq);
nco_crcf costas_vco = nco_crcf_create(LIQUID_VCO);
nco_crcf_set_phase(costas_vco, 0.0f);
nco_crcf_set_frequency(costas_vco, 0);
firfilt_rrrf r_fir = firfilt_rrrf_create(LOWPASS_COEFFS, 37);
firfilt_rrrf i_fir = firfilt_rrrf_create(LOWPASS_COEFFS, 37);
agc_crcf agc = agc_crcf_create(); // create object
agc_crcf_set_bandwidth(agc,1e-3f); // set loop filter bandwidth
// output complex exponential
float complex x;
FILE* output = fopen("output.raw", "w");
FILE* input = fopen("wobble.raw", "r");
FILE* input = fopen("middle_beacon.raw", "r");
float vco_freq = 0.0;
float loop_bw = 0.3;
float min_freq = -1.0;
float max_freq = 1.0;
// Set the damping factor for a critically damped system
float damping = sqrtf(2.0f) / 2.0f;
float denom = (1.0 + 2.0 * damping * loop_bw + loop_bw * loop_bw);
float alpha = (4 * damping * loop_bw) / denom;
float beta = (4 * loop_bw * loop_bw) / denom;
float loop_freq = 0.0;
float loop_phase = 0.0;
float in[2];
while(fread(in, sizeof(float), 2, input) == 2) {
@ -54,28 +43,33 @@ int main() {
// compute complex exponential
nco_crcf_cexpf(downmix, &x);
float complex y;
nco_crcf_step(costas_vco);
nco_crcf_cexpf(costas_vco, &y);
float complex y = cos(-loop_phase) + I * sin(-loop_phase);
float complex input_sample = (in[0] + I * in[1]);
float complex downmix_sample = input_sample * x;
agc_crcf_execute(agc, downmix_sample, &downmix_sample);
float complex costas_sample = downmix_sample * y;
float complex output_sample = input_sample * y;
float r_sample = creal(costas_sample);
float i_sample = cimag(costas_sample);
firfilt_rrrf_push(r_fir, r_sample); // push input sample
firfilt_rrrf_execute(r_fir,&r_sample); // compute output
firfilt_rrrf_push(i_fir, i_sample); // push input sample
firfilt_rrrf_execute(i_fir,&i_sample); // compute output
float error = i_sample * r_sample;
vco_freq += error * 0.1;
nco_crcf_set_frequency(costas_vco, -vco_freq);
loop_freq += beta * error;
loop_phase += loop_freq + alpha * error;
while(loop_phase > (2 * M_PI))
loop_phase -= 2 * M_PI;
while(loop_phase < (-2 * M_PI))
loop_phase += 2 * M_PI;
if(loop_freq > max_freq)
loop_freq = max_freq;
else if(loop_freq < min_freq)
loop_freq = min_freq;
float buffer[] = {creal(output_sample), cimag(output_sample)};
fwrite(buffer, sizeof(float), 2, output);
@ -83,10 +77,7 @@ int main() {
// destroy nco object
nco_crcf_destroy(downmix);
nco_crcf_destroy(costas_vco);
firfilt_rrrf_destroy(r_fir);
firfilt_rrrf_destroy(i_fir);
fclose(output);
fclose(input);

422
from_audio.grc Normal file
View File

@ -0,0 +1,422 @@
options:
parameters:
author: sebastian
catch_exceptions: 'True'
category: '[GRC Hier Blocks]'
cmake_opt: ''
comment: ''
copyright: ''
description: ''
gen_cmake: 'On'
gen_linking: dynamic
generate_options: qt_gui
hier_block_src_path: '.:'
id: from_audio
max_nouts: '0'
output_language: python
placement: (0,0)
qt_qss_theme: ''
realtime_scheduling: ''
run: 'True'
run_command: '{python} -u {filename}'
run_options: prompt
sizing_mode: fixed
thread_safe_setters: ''
title: Not titled yet
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [8, 8]
rotation: 0
state: enabled
blocks:
- name: samp_rate
id: variable
parameters:
comment: ''
value: '100000'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [184, 12]
rotation: 0
state: enabled
- name: analog_noise_source_x_0
id: analog_noise_source_x
parameters:
affinity: ''
alias: ''
amp: '0.001'
comment: ''
maxoutbuf: '0'
minoutbuf: '0'
noise_type: analog.GR_GAUSSIAN
seed: '0'
type: complex
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [384, 212.0]
rotation: 0
state: true
- name: analog_sig_source_x_0
id: analog_sig_source_x
parameters:
affinity: ''
alias: ''
amp: '1'
comment: ''
freq: '25000'
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: [360, 292.0]
rotation: 0
state: true
- name: analog_sig_source_x_0_0
id: analog_sig_source_x
parameters:
affinity: ''
alias: ''
amp: '1'
comment: ''
freq: '0.05'
maxoutbuf: '0'
minoutbuf: '0'
offset: '0'
phase: '0'
samp_rate: samp_rate
type: float
waveform: analog.GR_COS_WAVE
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [352, 420.0]
rotation: 0
state: true
- name: audio_source_0
id: audio_source
parameters:
affinity: ''
alias: ''
comment: ''
device_name: ''
maxoutbuf: '0'
minoutbuf: '0'
num_outputs: '1'
ok_to_block: 'True'
samp_rate: '48000'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [32, 172.0]
rotation: 0
state: true
- name: band_pass_filter_0
id: band_pass_filter
parameters:
affinity: ''
alias: ''
beta: '6.76'
comment: ''
decim: '1'
gain: '1'
high_cutoff_freq: '10000'
interp: '1'
low_cutoff_freq: '0'
maxoutbuf: '0'
minoutbuf: '0'
samp_rate: samp_rate
type: fir_filter_fcc
width: '100'
win: window.WIN_HAMMING
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [424, 52.0]
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: [616, 104.0]
rotation: 0
state: true
- name: blocks_file_sink_0
id: blocks_file_sink
parameters:
affinity: ''
alias: ''
append: 'False'
comment: ''
file: /home/sebastian/projects/QO100-trx/prototypes/middle_beacon.raw
type: complex
unbuffered: 'False'
vlen: '1'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [1016, 300.0]
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: [696, 176.0]
rotation: 0
state: true
- name: blocks_multiply_xx_0_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: [832, 192.0]
rotation: 0
state: true
- name: blocks_vco_c_0
id: blocks_vco_c
parameters:
affinity: ''
alias: ''
amplitude: '1.0'
comment: ''
maxoutbuf: '0'
minoutbuf: '0'
samp_rate: samp_rate
sensitivity: '5000'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [656, 444.0]
rotation: 0
state: true
- name: qtgui_freq_sink_x_0
id: qtgui_freq_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: 'False'
average: '1.0'
axislabels: 'True'
bw: samp_rate
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'
fc: '0'
fftsize: '4096'
freqhalf: 'True'
grid: 'False'
gui_hint: ''
label: Relative Gain
label1: ''
label10: ''''''
label2: ''''''
label3: ''''''
label4: ''''''
label5: ''''''
label6: ''''''
label7: ''''''
label8: ''''''
label9: ''''''
legend: 'True'
maxoutbuf: '0'
minoutbuf: '0'
name: '""'
nconnections: '1'
norm_window: 'False'
showports: 'False'
tr_chan: '0'
tr_level: '0.0'
tr_mode: qtgui.TRIG_MODE_FREE
tr_tag: '""'
type: complex
units: dB
update_time: '0.10'
width1: '1'
width10: '1'
width2: '1'
width3: '1'
width4: '1'
width5: '1'
width6: '1'
width7: '1'
width8: '1'
width9: '1'
wintype: window.WIN_BLACKMAN_hARRIS
ymax: '10'
ymin: '-140'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [1016, 60.0]
rotation: 0
state: true
- name: qtgui_waterfall_sink_x_0
id: qtgui_waterfall_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'
axislabels: 'True'
bw: samp_rate
color1: '0'
color10: '0'
color2: '0'
color3: '0'
color4: '0'
color5: '0'
color6: '0'
color7: '0'
color8: '0'
color9: '0'
comment: ''
fc: '0'
fftsize: '4096'
freqhalf: 'True'
grid: 'False'
gui_hint: ''
int_max: '10'
int_min: '-140'
label1: ''
label10: ''
label2: ''
label3: ''
label4: ''
label5: ''
label6: ''
label7: ''
label8: ''
label9: ''
legend: 'True'
maxoutbuf: '0'
minoutbuf: '0'
name: '""'
nconnections: '1'
showports: 'False'
type: complex
update_time: '0.10'
wintype: window.WIN_BLACKMAN_hARRIS
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [1016, 188.0]
rotation: 0
state: true
- name: rational_resampler_xxx_0
id: rational_resampler_xxx
parameters:
affinity: ''
alias: ''
comment: ''
decim: '48000'
fbw: '0'
interp: samp_rate
maxoutbuf: '0'
minoutbuf: '0'
taps: '[]'
type: fff
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [232, 148.0]
rotation: 0
state: true
connections:
- [analog_noise_source_x_0, '0', blocks_add_xx_0, '1']
- [analog_sig_source_x_0, '0', blocks_multiply_xx_0, '1']
- [analog_sig_source_x_0_0, '0', blocks_vco_c_0, '0']
- [audio_source_0, '0', rational_resampler_xxx_0, '0']
- [band_pass_filter_0, '0', blocks_add_xx_0, '0']
- [blocks_add_xx_0, '0', blocks_multiply_xx_0, '0']
- [blocks_multiply_xx_0, '0', blocks_multiply_xx_0_0, '0']
- [blocks_multiply_xx_0_0, '0', blocks_file_sink_0, '0']
- [blocks_multiply_xx_0_0, '0', qtgui_freq_sink_x_0, '0']
- [blocks_multiply_xx_0_0, '0', qtgui_waterfall_sink_x_0, '0']
- [blocks_vco_c_0, '0', blocks_multiply_xx_0_0, '1']
- [rational_resampler_xxx_0, '0', band_pass_filter_0, '0']
metadata:
file_format: 1

261
resample_recording.grc Normal file
View File

@ -0,0 +1,261 @@
options:
parameters:
author: sebastian
catch_exceptions: 'True'
category: '[GRC Hier Blocks]'
cmake_opt: ''
comment: ''
copyright: ''
description: ''
gen_cmake: 'On'
gen_linking: dynamic
generate_options: qt_gui
hier_block_src_path: '.:'
id: resample_recording
max_nouts: '0'
output_language: python
placement: (0,0)
qt_qss_theme: ''
realtime_scheduling: ''
run: 'True'
run_command: '{python} -u {filename}'
run_options: prompt
sizing_mode: fixed
thread_safe_setters: ''
title: Not titled yet
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [8, 8]
rotation: 0
state: enabled
blocks:
- name: samp_rate
id: variable
parameters:
comment: ''
value: '100000'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [184, 12]
rotation: 0
state: enabled
- name: blocks_file_sink_0
id: blocks_file_sink
parameters:
affinity: ''
alias: ''
append: 'False'
comment: ''
file: /home/sebastian/projects/QO100-trx/prototypes/middle_beacon.raw
type: complex
unbuffered: 'False'
vlen: '1'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [688, 188.0]
rotation: 0
state: true
- name: blocks_file_source_0
id: blocks_file_source
parameters:
affinity: ''
alias: ''
begin_tag: pmt.PMT_NIL
comment: ''
file: /home/sebastian/gqrx_20211122_222200_432741000_1000000_fc.raw
length: '0'
maxoutbuf: '0'
minoutbuf: '0'
offset: '0'
repeat: 'False'
type: complex
vlen: '1'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [72, 172.0]
rotation: 0
state: true
- name: blocks_throttle_0
id: blocks_throttle
parameters:
affinity: ''
alias: ''
comment: ''
ignoretag: 'True'
maxoutbuf: '0'
minoutbuf: '0'
samples_per_second: '1000000'
type: complex
vlen: '1'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [304, 204.0]
rotation: 0
state: true
- name: low_pass_filter_0
id: low_pass_filter
parameters:
affinity: ''
alias: ''
beta: '6.76'
comment: ''
cutoff_freq: '45000'
decim: '10'
gain: '1'
interp: '1'
maxoutbuf: '0'
minoutbuf: '0'
samp_rate: samp_rate
type: fir_filter_ccf
width: '5000'
win: window.WIN_HAMMING
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [464, 156.0]
rotation: 0
state: true
- name: qtgui_waterfall_sink_x_0
id: qtgui_waterfall_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'
axislabels: 'True'
bw: samp_rate
color1: '0'
color10: '0'
color2: '0'
color3: '0'
color4: '0'
color5: '0'
color6: '0'
color7: '0'
color8: '0'
color9: '0'
comment: ''
fc: '0'
fftsize: '4096'
freqhalf: 'True'
grid: 'False'
gui_hint: ''
int_max: '10'
int_min: '-140'
label1: ''
label10: ''
label2: ''
label3: ''
label4: ''
label5: ''
label6: ''
label7: ''
label8: ''
label9: ''
legend: 'True'
maxoutbuf: '0'
minoutbuf: '0'
name: '""'
nconnections: '1'
showports: 'False'
type: complex
update_time: '0.10'
wintype: window.WIN_BLACKMAN_hARRIS
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [696, 52.0]
rotation: 0
state: true
- name: qtgui_waterfall_sink_x_0_0
id: qtgui_waterfall_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'
axislabels: 'True'
bw: '1000000'
color1: '0'
color10: '0'
color2: '0'
color3: '0'
color4: '0'
color5: '0'
color6: '0'
color7: '0'
color8: '0'
color9: '0'
comment: ''
fc: '0'
fftsize: '4096'
freqhalf: 'True'
grid: 'False'
gui_hint: ''
int_max: '10'
int_min: '-140'
label1: ''
label10: ''
label2: ''
label3: ''
label4: ''
label5: ''
label6: ''
label7: ''
label8: ''
label9: ''
legend: 'True'
maxoutbuf: '0'
minoutbuf: '0'
name: '""'
nconnections: '1'
showports: 'False'
type: complex
update_time: '0.10'
wintype: window.WIN_BLACKMAN_hARRIS
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [456, 36.0]
rotation: 0
state: true
connections:
- [blocks_file_source_0, '0', blocks_throttle_0, '0']
- [blocks_throttle_0, '0', low_pass_filter_0, '0']
- [blocks_throttle_0, '0', qtgui_waterfall_sink_x_0_0, '0']
- [low_pass_filter_0, '0', blocks_file_sink_0, '0']
- [low_pass_filter_0, '0', qtgui_waterfall_sink_x_0, '0']
metadata:
file_format: 1

4
view_waterfall.grc
View File

@ -73,7 +73,7 @@ blocks:
alias: ''
begin_tag: pmt.PMT_NIL
comment: ''
file: /home/sebastian/projects/QO100-trx/prototypes/wobble.raw
file: /home/sebastian/projects/QO100-trx/prototypes/middle_beacon.raw
length: '0'
maxoutbuf: '0'
minoutbuf: '0'
@ -85,7 +85,7 @@ blocks:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [184, 92.0]
coordinate: [176, 92.0]
rotation: 0
state: true
- name: blocks_throttle_0

25
wobble.grc
View File

@ -95,11 +95,11 @@ blocks:
alias: ''
amp: '1'
comment: ''
freq: '0.05'
freq: '0.01'
maxoutbuf: '0'
minoutbuf: '0'
offset: '-0.5'
phase: '0'
phase: 3.14159265358 / 2
samp_rate: samp_rate
type: float
waveform: analog.GR_TRI_WAVE
@ -146,6 +146,24 @@ blocks:
coordinate: [1344, 340.0]
rotation: 0
state: true
- name: blocks_multiply_const_vxx_0
id: blocks_multiply_const_vxx
parameters:
affinity: ''
alias: ''
comment: ''
const: '-1'
maxoutbuf: '0'
minoutbuf: '0'
type: float
vlen: '1'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [520, 516.0]
rotation: 0
state: true
- name: blocks_multiply_xx_0
id: blocks_multiply_xx
parameters:
@ -266,8 +284,9 @@ blocks:
connections:
- [analog_sig_source_x_0, '0', blocks_add_xx_0, '0']
- [analog_sig_source_x_1, '0', blocks_add_xx_0, '1']
- [analog_sig_source_x_1_0, '0', blocks_vco_c_0, '0']
- [analog_sig_source_x_1_0, '0', blocks_multiply_const_vxx_0, '0']
- [blocks_add_xx_0, '0', blocks_multiply_xx_0, '0']
- [blocks_multiply_const_vxx_0, '0', blocks_vco_c_0, '0']
- [blocks_multiply_xx_0, '0', blocks_throttle_0, '0']
- [blocks_throttle_0, '0', blocks_file_sink_0, '0']
- [blocks_throttle_0, '0', qtgui_waterfall_sink_x_0, '0']