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Added a bunch of notes about Radiosonde RX (help !)

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This commit is contained in:
furrtek
2017-10-06 05:35:25 +01:00
parent d3222c27ca
commit f00125879d
4 changed files with 93 additions and 23 deletions
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13
firmware/baseband/proc_sonde.cpp
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@@ -28,22 +28,23 @@
#include "event_m4.hpp"
SondeProcessor::SondeProcessor() {
decim_0.configure(taps_200k_decim_0.taps, 33554432);
decim_1.configure(taps_200k_decim_1.taps, 131072);
decim_0.configure(taps_11k0_decim_0.taps, 33554432);
decim_1.configure(taps_11k0_decim_1.taps, 131072);
}
void SondeProcessor::execute(const buffer_c8_t& buffer) {
/* 2.4576MHz, 2048 samples */
const auto decim_0_out = decim_0.execute(buffer, dst_buffer);
const auto decimator_out = decim_1.execute(decim_0_out, dst_buffer);
const auto decim_1_out = decim_1.execute(decim_0_out, dst_buffer);
const auto decimator_out = decim_1_out;
/* 307.2kHz, 256 samples */
/* 38.4kHz, 32 samples */
feed_channel_stats(decimator_out);
for(size_t i=0; i<decimator_out.count; i++) {
if( mf_38k4_1t_19k2.execute_once(decimator_out.p[i]) ) {
clock_recovery_fsk_19k2(mf_38k4_1t_19k2.get_output());
if( mf.execute_once(decimator_out.p[i]) ) {
clock_recovery_fsk_4800(mf.get_output());
}
}
}