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AlexandreRouma
2022-06-18 00:33:08 +02:00
parent ccc57cddc7
commit 1dddbadd04
10 changed files with 242 additions and 70 deletions
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42
core/src/dsp/demod/ssb.h
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@ -16,29 +16,17 @@ namespace dsp::demod {
SSB() {}
/** Calls the init function
*/
SSB(stream<complex_t>* in, Mode mode, double bandwidth, double samplerate, double agcRate) { init(in, mode, bandwidth, samplerate, agcRate); }
SSB(stream<complex_t>* in, Mode mode, double bandwidth, double samplerate, double agcAttack, double agcDecay) { init(in, mode, bandwidth, samplerate, agcAttack, agcDecay); }
/** Initialize the SSB/DSB Demodulator
* \param in Input stream
* \param mode Demodulation mode, can be USB, LSB or DSB
* \param bandwidth Bandwidth needed to shift back the IQ correctly
* \param samplerate Samplerate of the IQ data
* \param agcRate Speed at which the AGC corrects the audio level. This is NOT automatically scaled to the samplerate.
*/
void init(stream<complex_t>* in, Mode mode, double bandwidth, double samplerate, double agcRate) {
void init(stream<complex_t>* in, Mode mode, double bandwidth, double samplerate, double agcAttack, double agcDecay) {
_mode = mode;
_bandwidth = bandwidth;
_samplerate = samplerate;
xlator.init(NULL, getTranslation(), _samplerate);
agc.init(NULL, 1.0, agcRate, 10e6, 10.0);
agc.init(NULL, 1.0, agcAttack, agcDecay, 10e6, 10.0);
base_type::init(in);
}
/** Set demodulation mode
* \param mode Either USB, LSB or DSB
*/
void setMode(Mode mode) {
assert(base_type::_block_init);
std::lock_guard<std::recursive_mutex> lck(base_type::ctrlMtx);
@ -48,9 +36,6 @@ namespace dsp::demod {
base_type::tempStart();
}
/** Set bandwidth
* \param bandwidth Bandwidth in Hz
*/
void setBandwidth(double bandwidth) {
assert(base_type::_block_init);
std::lock_guard<std::recursive_mutex> lck(base_type::ctrlMtx);
@ -60,9 +45,6 @@ namespace dsp::demod {
base_type::tempStart();
}
/** Set samplerate
* \param samplerate Samplerate in Hz
*/
void setSamplerate(double samplerate) {
assert(base_type::_block_init);
std::lock_guard<std::recursive_mutex> lck(base_type::ctrlMtx);
@ -72,20 +54,18 @@ namespace dsp::demod {
base_type::tempStart();
}
/** Set AGC rate
* \param agcRate AGC rate in units per second
*/
void setAGCRate(double agcRate) {
void setAGCAttack(double attack) {
assert(base_type::_block_init);
std::lock_guard<std::recursive_mutex> lck(base_type::ctrlMtx);
agc.setRate(agcRate);
agc.setAttack(attack);
}
void setAGCDecay(double decay) {
assert(base_type::_block_init);
std::lock_guard<std::recursive_mutex> lck(base_type::ctrlMtx);
agc.setDecay(decay);
}
/** Process data
* \param count Number of samples
* \param in Input buffer
* \param out Output buffer
*/
int process(int count, const complex_t* in, float* out) {
// Move back sideband
xlator.process(count, in, xlator.out.writeBuf);