mirror of
https://github.com/cjcliffe/CubicSDR.git
synced 2024-11-04 08:21:16 -05:00
FSK tweaks, minimum bandwidth adjust
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parent
76d69ffd78
commit
0f8065f48a
@ -120,6 +120,7 @@ AppFrame::AppFrame() :
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demodWaterfallCanvas->setup(1024, 128);
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demodWaterfallCanvas->setView(wxGetApp().getConfig()->getCenterFreq(), 300000);
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demodWaterfallCanvas->attachSpectrumCanvas(demodSpectrumCanvas);
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demodWaterfallCanvas->setMinBandwidth(8000);
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demodSpectrumCanvas->attachWaterfallCanvas(demodWaterfallCanvas);
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demodVisuals->Add(demodWaterfallCanvas, 6, wxEXPAND | wxALL, 0);
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wxGetApp().getDemodSpectrumProcessor()->attachOutput(demodWaterfallCanvas->getVisualDataQueue());
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@ -173,8 +173,8 @@ int DemodulatorMgr::getLastBandwidth() const {
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}
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void DemodulatorMgr::setLastBandwidth(int lastBandwidth) {
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if (lastBandwidth < 1500) {
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lastBandwidth = 1500;
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if (lastBandwidth < MIN_BANDWIDTH) {
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lastBandwidth = MIN_BANDWIDTH;
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} else if (lastBandwidth > wxGetApp().getSampleRate()) {
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lastBandwidth = wxGetApp().getSampleRate();
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}
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@ -6,6 +6,8 @@
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#include <cmath>
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#include <atomic>
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#define MIN_BANDWIDTH 500
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class ModemKit {
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public:
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ModemKit() : sampleRate(0), audioSampleRate(0) {
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@ -9,8 +9,8 @@ std::string ModemAnalog::getType() {
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}
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int ModemAnalog::checkSampleRate(long long sampleRate, int audioSampleRate) {
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if (sampleRate < 1500) {
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return 1500;
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if (sampleRate < MIN_BANDWIDTH) {
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return MIN_BANDWIDTH;
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}
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return sampleRate;
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}
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@ -20,8 +20,8 @@ std::string ModemDigital::getType() {
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}
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int ModemDigital::checkSampleRate(long long sampleRate, int audioSampleRate) {
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if (sampleRate < 1500) {
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return 1500;
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if (sampleRate < MIN_BANDWIDTH) {
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return MIN_BANDWIDTH;
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}
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return sampleRate;
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}
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@ -20,8 +20,8 @@ ModemLSB::~ModemLSB() {
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}
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int ModemLSB::checkSampleRate(long long sampleRate, int audioSampleRate) {
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if (sampleRate < 1500) {
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return 1500;
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if (sampleRate < MIN_BANDWIDTH) {
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return MIN_BANDWIDTH;
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}
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if (sampleRate % 2 == 0) {
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return sampleRate;
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@ -20,8 +20,8 @@ ModemUSB::~ModemUSB() {
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}
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int ModemUSB::checkSampleRate(long long sampleRate, int audioSampleRate) {
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if (sampleRate < 1500) {
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return 1500;
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if (sampleRate < MIN_BANDWIDTH) {
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return MIN_BANDWIDTH;
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}
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if (sampleRate % 2 == 0) {
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return sampleRate;
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@ -5,6 +5,7 @@ ModemFSK::ModemFSK() : ModemDigital() {
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// DMR defaults?
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bps = 1;
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sps = 9600;
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bw = 0.45;
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outStream << std::hex;
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}
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@ -35,6 +36,7 @@ ModemArgInfoList ModemFSK::getSettings() {
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bpsArg.value = std::to_string(bps);
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bpsArg.description = "Modem bits-per-symbol";
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bpsArg.type = ModemArgInfo::STRING;
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bpsArg.units = "bits";
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std::vector<std::string> bpsOpts;
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bpsOpts.push_back("1");
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@ -51,21 +53,20 @@ ModemArgInfoList ModemFSK::getSettings() {
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spsArg.name = "Symbols/second";
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spsArg.value = std::to_string(sps);
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spsArg.description = "Modem symbols-per-second";
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spsArg.type = ModemArgInfo::STRING;
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spsArg.type = ModemArgInfo::INT;
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spsArg.range = ModemRange(10,115200);
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std::vector<std::string> spsOpts;
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// some common modem rates ..?
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spsOpts.push_back("300");
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spsOpts.push_back("600");
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spsOpts.push_back("1200");
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spsOpts.push_back("2400");
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spsOpts.push_back("4800");
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spsOpts.push_back("9600");
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spsOpts.push_back("19200");
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spsOpts.push_back("38400");
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spsArg.options = spsOpts;
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args.push_back(spsArg);
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ModemArgInfo bwArg;
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bwArg.key = "bw";
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bwArg.name = "Signal bandwidth";
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bwArg.value = std::to_string(bw);
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bwArg.description = "Total signal bandwidth";
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bwArg.type = ModemArgInfo::FLOAT;
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bwArg.range = ModemRange(0.1,0.49);
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args.push_back(bwArg);
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return args;
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}
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@ -77,6 +78,9 @@ void ModemFSK::writeSetting(std::string setting, std::string value) {
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} else if (setting == "sps") {
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sps = std::stoi(value);
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rebuildKit();
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} else if (setting == "bw") {
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bw = std::stof(value);
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rebuildKit();
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}
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}
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@ -85,6 +89,8 @@ std::string ModemFSK::readSetting(std::string setting) {
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return std::to_string(bps);
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} else if (setting == "sps") {
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return std::to_string(sps);
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} else if (setting == "bw") {
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return std::to_string(bw);
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}
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return "";
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}
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@ -93,8 +99,9 @@ ModemKit *ModemFSK::buildKit(long long sampleRate, int audioSampleRate) {
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ModemKitFSK *dkit = new ModemKitFSK;
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dkit->m = bps;
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dkit->k = sampleRate / sps;
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dkit->bw = bw;
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dkit->demodFSK = fskdem_create(dkit->m, dkit->k, 0.45);
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dkit->demodFSK = fskdem_create(dkit->m, dkit->k, dkit->bw);
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dkit->sampleRate = sampleRate;
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dkit->audioSampleRate = audioSampleRate;
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@ -5,6 +5,7 @@
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class ModemKitFSK : public ModemKitDigital {
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public:
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unsigned int m, k;
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float bw;
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fskdem demodFSK;
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std::vector<liquid_float_complex> inputBuffer;
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@ -33,7 +34,7 @@ public:
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void demodulate(ModemKit *kit, ModemIQData *input, AudioThreadInput *audioOut);
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private:
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int sps;
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int bps;
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int sps, bps;
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float bw;
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};
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@ -21,8 +21,8 @@ Modem *ModemGMSK::factory() {
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}
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int ModemGMSK::checkSampleRate(long long sampleRate, int audioSampleRate) {
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if (sampleRate < 1500) {
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return 1500;
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if (sampleRate < MIN_BANDWIDTH) {
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return MIN_BANDWIDTH;
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}
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return sampleRate;
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}
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@ -17,8 +17,6 @@
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#include <wx/numformatter.h>
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#define MIN_BANDWIDTH 1500
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wxBEGIN_EVENT_TABLE(WaterfallCanvas, wxGLCanvas)
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EVT_PAINT(WaterfallCanvas::OnPaint)
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EVT_KEY_DOWN(WaterfallCanvas::OnKeyDown)
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@ -44,6 +42,7 @@ WaterfallCanvas::WaterfallCanvas(wxWindow *parent, int *attribList) :
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preBuf = false;
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SetCursor(wxCURSOR_CROSS);
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scaleMove = 0;
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minBandwidth = 30000;
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}
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WaterfallCanvas::~WaterfallCanvas() {
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@ -179,8 +178,8 @@ void WaterfallCanvas::OnPaint(wxPaintEvent& WXUNUSED(event)) {
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if (currentZoom < 1) {
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bw = (long long) ceil((long double) bw * currentZoom);
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if (bw < 30000) {
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bw = 30000;
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if (bw < minBandwidth) {
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bw = minBandwidth;
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}
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if (mouseInView) {
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long long mfreqA = getFrequencyAt(mpos);
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@ -852,4 +851,6 @@ void WaterfallCanvas::setLinesPerSecond(int lps) {
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tex_update.unlock();
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}
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void WaterfallCanvas::setMinBandwidth(int min) {
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minBandwidth = min;
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}
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@ -30,6 +30,7 @@ public:
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SpectrumVisualDataQueue *getVisualDataQueue();
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void setLinesPerSecond(int lps);
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void setMinBandwidth(int min);
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private:
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void OnPaint(wxPaintEvent& event);
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@ -75,6 +76,7 @@ private:
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double lpsIndex;
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bool preBuf;
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std::mutex tex_update;
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int minBandwidth;
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// event table
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wxDECLARE_EVENT_TABLE();
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};
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