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Oversample (#1336)

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* WIP Oversample cleanup

* WIP

* WIP

* WIP dynamic interpolation

* WIP cleanup

* Fix math errors

* Add some optional assertions

* Add support for x32 interpolation

* Update proc_replay.cpp

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This commit is contained in:
Kyle Reed
2023-08-02 12:59:26 -07:00
committed by GitHub
parent e2ad0a1b1a
commit 37386c29cb
20 changed files with 272 additions and 169 deletions
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7
firmware/baseband/proc_capture.hpp
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@@ -42,7 +42,7 @@ class CaptureProcessor : public BasebandProcessor {
void on_message(const Message* const message) override;
private:
size_t baseband_fs = 3072000;
size_t baseband_fs = 3072000; // aka: sample_rate
static constexpr auto spectrum_rate_hz = 50.0f;
std::array<complex16_t, 512> dst{};
@@ -67,15 +67,14 @@ class CaptureProcessor : public BasebandProcessor {
SpectrumCollector channel_spectrum{};
size_t spectrum_interval_samples = 0;
size_t spectrum_samples = 0;
OversampleRate oversample_rate{OversampleRate::Rate8x};
OversampleRate oversample_rate{OversampleRate::x8};
/* NB: Threads should be the last members in the class definition. */
BasebandThread baseband_thread{
baseband_fs, this, baseband::Direction::Receive, /*auto_start*/ false};
RSSIThread rssi_thread{};
/* Called to update members when the sample rate or oversample rate is changed. */
void update_for_rate_change();
void sample_rate_config(const SampleRateConfigMessage& message);
void capture_config(const CaptureConfigMessage& message);
/* Dispatch to the correct decim_0 based on oversample rate. */