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Add wideband FM spectrum waterfall.

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This commit is contained in:
Jared Boone
2016-01-04 17:27:18 -08:00
parent 36021689f9
commit dcb2c46c57
2 changed files with 26 additions and 1 deletions
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8
firmware/baseband/proc_wfm_audio.hpp
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@@ -29,6 +29,8 @@
#include "dsp_iir.hpp"
#include "dsp_iir_config.hpp"
#include "spectrum_collector.hpp"
class WidebandFMAudio : public BasebandProcessor {
public:
void execute(const buffer_c8_t& buffer) override;
@@ -48,6 +50,8 @@ private:
dsp::decimate::FIRC8xR16x24FS4Decim4 decim_0;
dsp::decimate::FIRC16xR16x16Decim2 decim_1;
uint32_t channel_filter_pass_f = 0;
uint32_t channel_filter_stop_f = 0;
dsp::demodulate::FM demod;
dsp::decimate::DecimateBy2CIC4Real audio_dec_1;
@@ -57,6 +61,10 @@ private:
IIRBiquadFilter audio_hpf { audio_hpf_30hz_config };
IIRBiquadFilter audio_deemph { audio_deemph_2122_6_config };
SpectrumCollector channel_spectrum;
size_t spectrum_interval_samples = 0;
size_t spectrum_samples = 0;
bool configured { false };
void configure(const WFMConfigureMessage& message);
};