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Adding Wefax demodulation mode inside Audio App (#2539)

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* Adding_new_WFAX_GUI_mode_Audio_App

* Wefax_APT_demodulation_structure

* Solving REC Apt signal.wav from WFAX

* clang format issues

* correcting comments
This commit is contained in:
Brumi-2021
2025-03-05 04:27:18 +01:00
committed by GitHub
parent b6e498a6d3
commit 52c3760e90
19 changed files with 383 additions and 55 deletions
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32
firmware/application/receiver_model.cpp
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@@ -39,13 +39,14 @@ using namespace portapack;
namespace {
static constexpr std::array<baseband::AMConfig, 5> am_configs{{
static constexpr std::array<baseband::AMConfig, 6> am_configs{{
// we config here all the non COMMON parameters to each AM modulation type in RX.
{taps_9k0_decim_2, taps_9k0_dsb_channel, AMConfigureMessage::Modulation::DSB}, // AM DSB-C BW 9khz (+-4k5) commercial EU bandwidth .
{taps_6k0_decim_2, taps_6k0_dsb_channel, AMConfigureMessage::Modulation::DSB}, // AM DSB-C BW 6khz (+-3k0) narrow AM , ham equipments.
{taps_6k0_decim_2, taps_2k8_usb_channel, AMConfigureMessage::Modulation::SSB}, // SSB USB BW 2K8 (+ 2K8)
{taps_6k0_decim_2, taps_2k8_lsb_channel, AMConfigureMessage::Modulation::SSB}, // SSB LSB BW 2K8 (- 2K8)
{taps_6k0_decim_2, taps_0k7_usb_channel, AMConfigureMessage::Modulation::SSB}, // SSB USB BW 0K7 (+ 0K7) used to get audio tone from CW Morse, assuming tx shifted +700hz aprox
{taps_9k0_decim_2, taps_9k0_dsb_channel, AMConfigureMessage::Modulation::DSB, audio_12k_hpf_300hz_config}, // AM DSB-C BW 9khz (+-4k5) commercial EU bandwidth .
{taps_6k0_decim_2, taps_6k0_dsb_channel, AMConfigureMessage::Modulation::DSB, audio_12k_hpf_300hz_config}, // AM DSB-C BW 6khz (+-3k0) narrow AM , ham equipments.
{taps_6k0_decim_2, taps_2k8_usb_channel, AMConfigureMessage::Modulation::SSB, audio_12k_hpf_300hz_config}, // SSB USB BW 2K8 (+ 2K8) SSB ham equipments.
{taps_6k0_decim_2, taps_2k8_lsb_channel, AMConfigureMessage::Modulation::SSB, audio_12k_hpf_300hz_config}, // SSB LSB BW 2K8 (- 2K8) SSB ham equipments.
{taps_6k0_decim_2, taps_0k7_usb_channel, AMConfigureMessage::Modulation::SSB, audio_12k_hpf_300hz_config}, // SSB USB BW 0K7 (+ 0K7) To get audio tone from CW Morse, assuming tx shifted +700hz aprox
{taps_6k0_decim_2, taps_2k6_usb_wefax_channel, AMConfigureMessage::Modulation::SSB_FM, audio_12k_lpf_1500hz_config}, // SSB USB+FM to demod. Subcarrier FM Audio Tones to get APT Weather Fax.
}};
static constexpr std::array<baseband::NBFMConfig, 3> nbfm_configs{{
@@ -145,6 +146,17 @@ void ReceiverModel::set_am_configuration(uint8_t n) {
}
}
uint8_t ReceiverModel::amfm_configuration() const {
return settings_.amfm_config_index;
}
void ReceiverModel::set_amfm_configuration(uint8_t n) {
if (n < am_configs.size()) {
settings_.amfm_config_index = n;
update_modulation();
}
}
uint8_t ReceiverModel::nbfm_configuration() const {
return settings_.nbfm_config_index;
}
@@ -303,6 +315,10 @@ void ReceiverModel::update_modulation() {
update_am_configuration();
break;
case Mode::AMAudioFMApt: // Wefax , first step , USB demodulation from the AMAudio group, index 2 (USB+3K), TODO +FM subcarrier demod ?
update_amfm_configuration();
break;
case Mode::NarrowbandFMAudio:
update_nbfm_configuration();
break;
@@ -321,6 +337,10 @@ void ReceiverModel::update_am_configuration() {
am_configs[am_configuration()].apply();
}
void ReceiverModel::update_amfm_configuration() {
am_configs[amfm_configuration()].apply(); // update with different index for Wefax.
}
void ReceiverModel::update_nbfm_configuration() {
nbfm_configs[nbfm_configuration()].apply(squelch_level());
}