comicsansg/CubicSDR
comicsansg/CubicSDR
1
0
Fork 0
mirror of https://github.com/cjcliffe/CubicSDR.git synced 2024-11-29 15:18:38 -05:00
Code Issues Projects Releases Wiki Activity

Allow modems to limit/control input rate

Browse Source 
- Modems can now over-ride user rate input and lock/step as needed
- Separate digital code defs a bit more so it’s not required when
disabled
- Testing FSK based on @andresv ’s example at
https://github.com/jgaeddert/liquid-dsp/issues/9
This commit is contained in:
Charles J. Cliffe 2015-11-22 19:56:25 -05:00
parent 724808d9ff
commit c0eca0b2f3
26 changed files with 242 additions and 105 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

56
CMakeLists.txt
View File

@ -237,16 +237,6 @@ SET (cubicsdr_sources
src/modules/modem/Modem.cpp
src/modules/modem/ModemAnalog.cpp
src/modules/modem/ModemDigital.cpp
src/modules/modem/digital/ModemASK.cpp
src/modules/modem/digital/ModemAPSK.cpp
src/modules/modem/digital/ModemBPSK.cpp
src/modules/modem/digital/ModemDPSK.cpp
src/modules/modem/digital/ModemPSK.cpp
src/modules/modem/digital/ModemOOK.cpp
src/modules/modem/digital/ModemST.cpp
src/modules/modem/digital/ModemSQAM.cpp
src/modules/modem/digital/ModemQAM.cpp
src/modules/modem/digital/ModemQPSK.cpp
src/modules/modem/analog/ModemAM.cpp
src/modules/modem/analog/ModemDSB.cpp
src/modules/modem/analog/ModemFM.cpp
@ -296,6 +286,23 @@ SET (cubicsdr_sources
external/cubicvr2/math/cubic_math.cpp
)
IF(ENABLE_DIGITAL_LAB)
SET (cubicsdr_sources
${cubicsdr_sources}
src/modules/modem/digital/ModemASK.cpp
src/modules/modem/digital/ModemAPSK.cpp
src/modules/modem/digital/ModemBPSK.cpp
src/modules/modem/digital/ModemDPSK.cpp
src/modules/modem/digital/ModemFSK.cpp
src/modules/modem/digital/ModemPSK.cpp
src/modules/modem/digital/ModemOOK.cpp
src/modules/modem/digital/ModemST.cpp
src/modules/modem/digital/ModemSQAM.cpp
src/modules/modem/digital/ModemQAM.cpp
src/modules/modem/digital/ModemQPSK.cpp
)
ENDIF()
SET (cubicsdr_headers
src/CubicSDRDefs.h
src/CubicSDR.h
@ -316,16 +323,6 @@ SET (cubicsdr_headers
src/modules/modem/Modem.h
src/modules/modem/ModemAnalog.h
src/modules/modem/ModemDigital.h
src/modules/modem/digital/ModemASK.h
src/modules/modem/digital/ModemAPSK.h
src/modules/modem/digital/ModemBPSK.h
src/modules/modem/digital/ModemDPSK.h
src/modules/modem/digital/ModemPSK.h
src/modules/modem/digital/ModemOOK.h
src/modules/modem/digital/ModemST.h
src/modules/modem/digital/ModemSQAM.h
src/modules/modem/digital/ModemQAM.h
src/modules/modem/digital/ModemQPSK.h
src/modules/modem/analog/ModemAM.h
src/modules/modem/analog/ModemDSB.h
src/modules/modem/analog/ModemFM.h
@ -391,6 +388,23 @@ SET (cubicsdr_headers
external/cubicvr2/math/vec4.h
)
IF(ENABLE_DIGITAL_LAB)
SET(cubicsdr_headers
${cubicsdr_headers}
src/modules/modem/digital/ModemASK.h
src/modules/modem/digital/ModemAPSK.h
src/modules/modem/digital/ModemBPSK.h
src/modules/modem/digital/ModemDPSK.h
src/modules/modem/digital/ModemFSK.h
src/modules/modem/digital/ModemPSK.h
src/modules/modem/digital/ModemOOK.h
src/modules/modem/digital/ModemST.h
src/modules/modem/digital/ModemSQAM.h
src/modules/modem/digital/ModemQAM.h
src/modules/modem/digital/ModemQPSK.h
)
ENDIF()
SET (CUBICSDR_RESOURCES
${PROJECT_SOURCE_DIR}/font/vera_sans_mono12.fnt
${PROJECT_SOURCE_DIR}/font/vera_sans_mono16.fnt
@ -414,7 +428,9 @@ SOURCE_GROUP("SDR" REGULAR_EXPRESSION "src/sdr/${REG_EXT}")
SOURCE_GROUP("Demodulator" REGULAR_EXPRESSION "src/demod/${REG_EXT}")
SOURCE_GROUP("Modem" REGULAR_EXPRESSION "src/modules/modem/${REG_EXT}")
SOURCE_GROUP("Modem-Analog" REGULAR_EXPRESSION "src/modules/modem/analog/${REG_EXT}")
IF(ENABLE_DIGITAL_LAB)
SOURCE_GROUP("Modem-Digital" REGULAR_EXPRESSION "src/modules/modem/digital/${REG_EXT}")
ENDIF()
SOURCE_GROUP("Audio" REGULAR_EXPRESSION "src/audio/${REG_EXT}")
SOURCE_GROUP("Utility" REGULAR_EXPRESSION "src/util/${REG_EXT}")
SOURCE_GROUP("Visual" REGULAR_EXPRESSION "src/visual/${REG_EXT}")

11
src/AppFrame.cpp
View File

@ -85,11 +85,12 @@ AppFrame::AppFrame() :
demodModeSelectorAdv->addChoice(2, "BPSK");
demodModeSelectorAdv->addChoice(3, "DPSK");
demodModeSelectorAdv->addChoice(4, "PSK");
demodModeSelectorAdv->addChoice(5, "OOK");
demodModeSelectorAdv->addChoice(6, "ST");
demodModeSelectorAdv->addChoice(7, "SQAM");
demodModeSelectorAdv->addChoice(8, "QAM");
demodModeSelectorAdv->addChoice(9, "QPSK");
demodModeSelectorAdv->addChoice(5, "FSK");
demodModeSelectorAdv->addChoice(6, "OOK");
demodModeSelectorAdv->addChoice(7, "ST");
demodModeSelectorAdv->addChoice(8, "SQAM");
demodModeSelectorAdv->addChoice(9, "QAM");
demodModeSelectorAdv->addChoice(10, "QPSK");
demodModeSelectorAdv->setHelpTip("Choose advanced modulation types.");
demodTray->Add(demodModeSelectorAdv, 3, wxEXPAND | wxALL, 0);

3
src/CubicSDR.cpp
View File

@ -172,16 +172,19 @@ bool CubicSDR::OnInit() {
Modem::addModemFactory(new ModemDSB);
Modem::addModemFactory(new ModemIQ);
#ifdef ENABLE_DIGITAL_LAB
Modem::addModemFactory(new ModemAPSK);
Modem::addModemFactory(new ModemASK);
Modem::addModemFactory(new ModemBPSK);
Modem::addModemFactory(new ModemDPSK);
Modem::addModemFactory(new ModemFSK);
Modem::addModemFactory(new ModemOOK);
Modem::addModemFactory(new ModemPSK);
Modem::addModemFactory(new ModemQAM);
Modem::addModemFactory(new ModemQPSK);
Modem::addModemFactory(new ModemSQAM);
Modem::addModemFactory(new ModemST);
#endif
frequency = wxGetApp().getConfig()->getCenterFreq();
offset = 0;

3
src/CubicSDR.h
View File

@ -37,16 +37,19 @@
#include "ModemDSB.h"
#include "ModemIQ.h"
#ifdef ENABLE_DIGITAL_LAB
#include "ModemAPSK.h"
#include "ModemASK.h"
#include "ModemBPSK.h"
#include "ModemDPSK.h"
#include "ModemFSK.h"
#include "ModemOOK.h"
#include "ModemPSK.h"
#include "ModemQAM.h"
#include "ModemQPSK.h"
#include "ModemSQAM.h"
#include "ModemST.h"
#endif
#include <wx/cmdline.h>

36
src/demod/DemodulatorInstance.cpp
View File

@ -14,7 +14,6 @@ DemodulatorInstance::DemodulatorInstance() :
follow.store(false);
currentAudioSampleRate.store(0);
currentFrequency.store(0);
currentBandwidth.store(0);
currentOutputDevice.store(-1);
currentAudioGain.store(1.0);
@ -24,7 +23,7 @@ DemodulatorInstance::DemodulatorInstance() :
pipeDemodCommand = new DemodulatorThreadCommandQueue;
pipeDemodNotify = new DemodulatorThreadCommandQueue;
demodulatorPreThread = new DemodulatorPreThread();
demodulatorPreThread = new DemodulatorPreThread(this);
demodulatorPreThread->setInputQueue("IQDataInput",pipeIQInputData);
demodulatorPreThread->setOutputQueue("IQDataOutput",pipeIQDemodData);
demodulatorPreThread->setOutputQueue("NotifyQueue",pipeDemodNotify);
@ -254,12 +253,6 @@ int DemodulatorInstance::getOutputDevice() {
return currentOutputDevice;
}
void DemodulatorInstance::checkBandwidth() {
// if ((currentDemodType == DEMOD_TYPE_USB || currentDemodType == DEMOD_TYPE_LSB) && (getBandwidth() % 2)) {
// setBandwidth(getBandwidth()+1);
// }
}
void DemodulatorInstance::setDemodulatorType(std::string demod_type_in) {
currentDemodType = demod_type_in;
@ -274,7 +267,6 @@ void DemodulatorInstance::setDemodulatorType(std::string demod_type_in) {
demodulatorPreThread->getParams().demodType = currentDemodType;
if (!active) {
checkBandwidth();
demodulatorPreThread->setDemodType(currentDemodType);
} else if (demodulatorThread && threadQueueControl) {
demodulatorPreThread->setDemodType(currentDemodType);
@ -318,32 +310,18 @@ int DemodulatorInstance::getDemodulatorCons() {
}
void DemodulatorInstance::setBandwidth(int bw) {
if (currentDemodType == "I/Q") {
if (currentAudioSampleRate) {
bw = currentAudioSampleRate;
} else {
bw = AudioThread::deviceSampleRate[getOutputDevice()];
}
}
if (!active && demodulatorPreThread != NULL) {
currentBandwidth = bw;
checkBandwidth();
demodulatorPreThread->getParams().bandwidth = currentBandwidth;
demodulatorPreThread->getParams().bandwidth = bw;
} else if (demodulatorPreThread && pipeDemodCommand) {
DemodulatorThreadCommand command;
command.cmd = DemodulatorThreadCommand::DEMOD_THREAD_CMD_SET_BANDWIDTH;
currentBandwidth = bw;
checkBandwidth();
command.llong_value = currentBandwidth;
command.llong_value = bw;
pipeDemodCommand->push(command);
}
}
int DemodulatorInstance::getBandwidth() {
if (!currentBandwidth) {
currentBandwidth = demodulatorPreThread->getParams().bandwidth;
}
return currentBandwidth;
return demodulatorPreThread->getParams().bandwidth;
}
void DemodulatorInstance::setFrequency(long long freq) {
@ -387,9 +365,9 @@ void DemodulatorInstance::setAudioSampleRate(int sampleRate) {
}
int DemodulatorInstance::getAudioSampleRate() {
if (!currentAudioSampleRate) {
currentAudioSampleRate = audioThread->getSampleRate();
}
currentAudioSampleRate = audioThread->getSampleRate();
demodulatorPreThread->getParams().audioSampleRate = currentAudioSampleRate;
return currentAudioSampleRate;
}

3
src/demod/DemodulatorInstance.h
View File

@ -97,8 +97,6 @@ protected:
private:
void checkBandwidth();
std::atomic<std::string *> label; //
std::atomic_bool terminated; //
std::atomic_bool demodTerminated; //
@ -109,7 +107,6 @@ private:
std::atomic_bool muted;
std::atomic_llong currentFrequency;
std::atomic_int currentBandwidth;
std::string currentDemodType;
std::atomic_int currentOutputDevice;
std::atomic_int currentAudioSampleRate;

11
src/demod/DemodulatorPreThread.cpp
View File

@ -7,10 +7,12 @@
#include "DemodulatorPreThread.h"
#include "CubicSDR.h"
#include "DemodulatorInstance.h"
DemodulatorPreThread::DemodulatorPreThread() : IOThread(), iqResampler(NULL), iqResampleRatio(1), cModem(nullptr), cModemKit(nullptr), iqInputQueue(NULL), iqOutputQueue(NULL), threadQueueNotify(NULL), commandQueue(NULL)
DemodulatorPreThread::DemodulatorPreThread(DemodulatorInstance *parent) : IOThread(), iqResampler(NULL), iqResampleRatio(1), cModem(nullptr), cModemKit(nullptr), iqInputQueue(NULL), iqOutputQueue(NULL), threadQueueNotify(NULL), commandQueue(NULL)
{
initialized.store(false);
this->parent = parent;
freqShifter = nco_crcf_create(LIQUID_VCO);
shiftFrequency = 0;
@ -82,11 +84,7 @@ void DemodulatorPreThread::run() {
if (command.llong_value < 1500) {
command.llong_value = 1500;
}
if (command.llong_value > params.sampleRate) {
tempParams.bandwidth = params.sampleRate;
} else {
tempParams.bandwidth = command.llong_value;
}
tempParams.bandwidth = command.llong_value;
bandwidthChanged = true;
break;
case DemodulatorThreadCommand::DEMOD_THREAD_CMD_SET_FREQUENCY:
@ -257,6 +255,7 @@ void DemodulatorPreThread::setParams(DemodulatorThreadParameters &params_in) {
void DemodulatorPreThread::setDemodType(std::string demodType) {
this->newDemodType = demodType;
DemodulatorWorkerThreadCommand command(DemodulatorWorkerThreadCommand::DEMOD_WORKER_THREAD_CMD_MAKE_DEMOD);
command.sampleRate = params.sampleRate;
command.demodType = demodType;
command.bandwidth = params.bandwidth;
command.audioSampleRate = params.audioSampleRate;

5
src/demod/DemodulatorPreThread.h
View File

@ -7,10 +7,12 @@
#include "DemodDefs.h"
#include "DemodulatorWorkerThread.h"
class DemodulatorInstance;
class DemodulatorPreThread : public IOThread {
public:
DemodulatorPreThread();
DemodulatorPreThread(DemodulatorInstance *parent);
~DemodulatorPreThread();
void run();
@ -28,6 +30,7 @@ public:
ModemKit *getModemKit();
protected:
DemodulatorInstance *parent;
msresamp_crcf iqResampler;
double iqResampleRatio;
std::vector<liquid_float_complex> resampledData;

52
src/demod/DemodulatorWorkerThread.cpp
View File

@ -26,62 +26,62 @@ void DemodulatorWorkerThread::run() {
while (!done) {
commandQueue->pop(command);
switch (command.cmd) {
case DemodulatorWorkerThreadCommand::DEMOD_WORKER_THREAD_CMD_BUILD_FILTERS:
filterChanged = true;
filterCommand = command;
break;
case DemodulatorWorkerThreadCommand::DEMOD_WORKER_THREAD_CMD_MAKE_DEMOD:
makeDemod = true;
demodCommand = command;
break;
default:
break;
case DemodulatorWorkerThreadCommand::DEMOD_WORKER_THREAD_CMD_BUILD_FILTERS:
filterChanged = true;
filterCommand = command;
break;
case DemodulatorWorkerThreadCommand::DEMOD_WORKER_THREAD_CMD_MAKE_DEMOD:
makeDemod = true;
demodCommand = command;
break;
default:
break;
}
done = commandQueue->empty();
}
if ((makeDemod || filterChanged) && !terminated) {
DemodulatorWorkerThreadResult result(DemodulatorWorkerThreadResult::DEMOD_WORKER_THREAD_RESULT_FILTERS);
float As = 60.0f; // stop-band attenuation [dB]
if (filterCommand.sampleRate && filterCommand.bandwidth) {
result.iqResampleRatio = (double) (filterCommand.bandwidth) / (double) filterCommand.sampleRate;
result.iqResampler = msresamp_crcf_create(result.iqResampleRatio, As);
if (filterCommand.sampleRate) {
result.sampleRate = filterCommand.sampleRate;
}
if (makeDemod) {
cModem = Modem::makeModem(demodCommand.demodType);
cModemType = demodCommand.demodType;
result.sampleRate = demodCommand.sampleRate;
}
result.modem = cModem;
if (makeDemod && demodCommand.bandwidth && demodCommand.audioSampleRate) {
if (cModem != nullptr) {
cModemKit = cModem->buildKit(demodCommand.bandwidth, demodCommand.audioSampleRate);
result.bandwidth = cModem->checkSampleRate(demodCommand.bandwidth, demodCommand.audioSampleRate);
cModemKit = cModem->buildKit(result.bandwidth, demodCommand.audioSampleRate);
} else {
cModemKit = nullptr;
}
} else if (filterChanged && filterCommand.bandwidth && filterCommand.audioSampleRate) {
if (cModem != nullptr) {
cModemKit = cModem->buildKit(filterCommand.bandwidth, filterCommand.audioSampleRate);
result.bandwidth = cModem->checkSampleRate(filterCommand.bandwidth, filterCommand.audioSampleRate);
cModemKit = cModem->buildKit(result.bandwidth, filterCommand.audioSampleRate);
} else {
cModemKit = nullptr;
}
} else if (makeDemod) {
cModemKit = nullptr;
}
float As = 60.0f; // stop-band attenuation [dB]
if (result.sampleRate && result.bandwidth) {
result.bandwidth = cModem->checkSampleRate(result.bandwidth, makeDemod?demodCommand.audioSampleRate:filterCommand.audioSampleRate);
result.iqResampleRatio = (double) (result.bandwidth) / (double) result.sampleRate;
result.iqResampler = msresamp_crcf_create(result.iqResampleRatio, As);
}
result.modemKit = cModemKit;
if (filterCommand.bandwidth) {
result.bandwidth = filterCommand.bandwidth;
}
if (filterCommand.sampleRate) {
result.sampleRate = filterCommand.sampleRate;
}
result.modemType = cModemType;
resultQueue->push(result);

1
src/modules/modem/Modem.h
View File

@ -44,6 +44,7 @@ public:
Modem();
virtual ~Modem();
virtual int checkSampleRate(long long sampleRate, int audioSampleRate) = 0;
virtual ModemKit *buildKit(long long sampleRate, int audioSampleRate) = 0;
virtual void disposeKit(ModemKit *kit) = 0;
virtual void demodulate(ModemKit *kit, ModemIQData *input, AudioThreadInput *audioOut) = 0;

4
src/modules/modem/ModemAnalog.cpp
View File

@ -8,6 +8,10 @@ std::string ModemAnalog::getType() {
return "analog";
}
int ModemAnalog::checkSampleRate(long long sampleRate, int audioSampleRate) {
return sampleRate;
}
ModemKit *ModemAnalog::buildKit(long long sampleRate, int audioSampleRate) {
ModemKitAnalog *akit = new ModemKitAnalog;

13
src/modules/modem/ModemAnalog.h
View File

@ -16,12 +16,13 @@ class ModemAnalog : public Modem {
public:
ModemAnalog();
std::string getType();
ModemKit *buildKit(long long sampleRate, int audioSampleRate);
void disposeKit(ModemKit *kit);
void initOutputBuffers(ModemKitAnalog *akit, ModemIQData *input);
void buildAudioOutput(ModemKitAnalog *akit, AudioThreadInput *audioOut, bool autoGain);
std::vector<float> *getDemodOutputData();
std::vector<float> *getResampledOutputData();
virtual int checkSampleRate(long long sampleRate, int audioSampleRate);
virtual ModemKit *buildKit(long long sampleRate, int audioSampleRate);
virtual void disposeKit(ModemKit *kit);
virtual void initOutputBuffers(ModemKitAnalog *akit, ModemIQData *input);
virtual void buildAudioOutput(ModemKitAnalog *akit, AudioThreadInput *audioOut, bool autoGain);
virtual std::vector<float> *getDemodOutputData();
virtual std::vector<float> *getResampledOutputData();
protected:
int bufSize;
std::vector<float> demodOutputData;

4
src/modules/modem/ModemDigital.cpp
View File

@ -8,6 +8,10 @@ std::string ModemDigital::getType() {
return "digital";
}
int ModemDigital::checkSampleRate(long long sampleRate, int audioSampleRate) {
return sampleRate;
}
ModemKit *ModemDigital::buildKit(long long sampleRate, int audioSampleRate) {
ModemKitDigital *dkit = new ModemKitDigital;

9
src/modules/modem/ModemDigital.h
View File

@ -13,10 +13,11 @@ class ModemDigital : public Modem {
public:
ModemDigital();
std::string getType();
ModemKit *buildKit(long long sampleRate, int audioSampleRate);
void disposeKit(ModemKit *kit);
void digitalStart(ModemKitDigital *kit, modem mod, ModemIQData *input);
void digitalFinish(ModemKitDigital *kit, modem mod);
virtual int checkSampleRate(long long sampleRate, int audioSampleRate);
virtual ModemKit *buildKit(long long sampleRate, int audioSampleRate);
virtual void disposeKit(ModemKit *kit);
virtual void digitalStart(ModemKitDigital *kit, modem mod, ModemIQData *input);
virtual void digitalFinish(ModemKitDigital *kit, modem mod);
virtual void setDemodulatorLock(bool demod_lock_in);
virtual int getDemodulatorLock();

8
src/modules/modem/analog/ModemFMStereo.cpp
View File

@ -30,6 +30,14 @@ Modem *ModemFMStereo::factory() {
return new ModemFMStereo;
}
int ModemFMStereo::checkSampleRate(long long sampleRate, int audioSampleRate) {
if (sampleRate < 100000) {
return 100000;
} else {
return sampleRate;
}
}
ModemKit *ModemFMStereo::buildKit(long long sampleRate, int audioSampleRate) {
ModemKitFMStereo *kit = new ModemKitFMStereo;

1
src/modules/modem/analog/ModemFMStereo.h
View File

@ -23,6 +23,7 @@ public:
std::string getType();
std::string getName();
Modem *factory();
int checkSampleRate(long long sampleRate, int audioSampleRate);
ModemKit *buildKit(long long sampleRate, int audioSampleRate);
void disposeKit(ModemKit *kit);
void demodulate(ModemKit *kit, ModemIQData *input, AudioThreadInput *audioOut);

6
src/modules/modem/analog/ModemIQ.cpp
View File

@ -10,6 +10,8 @@ Modem *ModemIQ::factory() {
ModemKit *ModemIQ::buildKit(long long sampleRate, int audioSampleRate) {
ModemKit *kit = new ModemKit;
kit->sampleRate = sampleRate;
kit->audioSampleRate = audioSampleRate;
return kit;
}
@ -25,6 +27,10 @@ void ModemIQ::disposeKit(ModemKit *kit) {
delete kit;
}
int ModemIQ::checkSampleRate(long long sampleRate, int audioSampleRate) {
return audioSampleRate;
}
void ModemIQ::demodulate(ModemKit *kit, ModemIQData *input, AudioThreadInput *audioOut) {
int bufSize = input->data.size();

1
src/modules/modem/analog/ModemIQ.h
View File

@ -8,6 +8,7 @@ public:
std::string getName();
Modem *factory();
ModemKit *buildKit(long long sampleRate, int audioSampleRate);
int checkSampleRate(long long sampleRate, int audioSampleRate);
void disposeKit(ModemKit *kit);
void demodulate(ModemKit *kit, ModemIQData *input, AudioThreadInput *audioOut);

7
src/modules/modem/analog/ModemLSB.cpp
View File

@ -19,6 +19,13 @@ ModemLSB::~ModemLSB() {
ampmodem_destroy(demodAM_LSB);
}
int ModemLSB::checkSampleRate(long long sampleRate, int audioSampleRate) {
if (sampleRate % 2 == 0) {
return sampleRate;
}
return sampleRate+1;
}
void ModemLSB::demodulate(ModemKit *kit, ModemIQData *input, AudioThreadInput *audioOut) {
ModemKitAnalog *akit = (ModemKitAnalog *)kit;

1
src/modules/modem/analog/ModemLSB.h
View File

@ -8,6 +8,7 @@ public:
~ModemLSB();
std::string getName();
Modem *factory();
int checkSampleRate(long long sampleRate, int audioSampleRate);
void demodulate(ModemKit *kit, ModemIQData *input, AudioThreadInput *audioOut);
private:

7
src/modules/modem/analog/ModemUSB.cpp
View File

@ -19,6 +19,13 @@ ModemUSB::~ModemUSB() {
ampmodem_destroy(demodAM_USB);
}
int ModemUSB::checkSampleRate(long long sampleRate, int audioSampleRate) {
if (sampleRate % 2 == 0) {
return sampleRate;
}
return sampleRate+1;
}
void ModemUSB::demodulate(ModemKit *kit, ModemIQData *input, AudioThreadInput *audioOut) {
ModemKitAnalog *akit = (ModemKitAnalog *)kit;

1
src/modules/modem/analog/ModemUSB.h
View File

@ -7,6 +7,7 @@ public:
~ModemUSB();
std::string getName();
Modem *factory();
int checkSampleRate(long long sampleRate, int audioSampleRate);
void demodulate(ModemKit *kit, ModemIQData *input, AudioThreadInput *audioOut);
private:

62
src/modules/modem/digital/ModemFSK.cpp Normal file
View File

@ -0,0 +1,62 @@
#include "ModemFSK.h"
ModemFSK::ModemFSK() {
demodulatorCons.store(2);
currentDemodCons.store(0);
updateDemodulatorCons(2);
}
Modem *ModemFSK::factory() {
return new ModemFSK;
}
ModemKit *ModemFSK::buildKit(long long sampleRate, int audioSampleRate) {
ModemKitFSK *dkit = new ModemKitFSK;
dkit->m = 1;
dkit->k = sampleRate / 9600;
dkit->bandwidth = 7000.0 / sampleRate;
dkit->demodFSK = fskdem_create(dkit->m, dkit->k, dkit->bandwidth);
dkit->sampleRate = sampleRate;
dkit->audioSampleRate = audioSampleRate;
return dkit;
}
void ModemFSK::disposeKit(ModemKit *kit) {
ModemKitFSK *dkit = (ModemKitFSK *)kit;
delete dkit;
}
std::string ModemFSK::getName() {
return "FSK";
}
ModemFSK::~ModemFSK() {
}
void ModemFSK::updateDemodulatorCons(int cons) {
}
void ModemFSK::demodulate(ModemKit *kit, ModemIQData *input, AudioThreadInput *audioOut) {
ModemKitFSK *dkit = (ModemKitFSK *)kit;
digitalStart(dkit, nullptr, input);
dkit->inputBuffer.insert(dkit->inputBuffer.end(),input->data.begin(),input->data.end());
while (dkit->inputBuffer.size() >= dkit->k) {
unsigned int sym_out;
sym_out = fskdem_demodulate(dkit->demodFSK, &dkit->inputBuffer[0]);
// std::cout << "ferror: " << fskdem_get_frequency_error(dkit->demodFSK) << std::endl;
printf("%01X", sym_out);
dkit->inputBuffer.erase(dkit->inputBuffer.begin(),dkit->inputBuffer.begin()+dkit->k);
}
digitalFinish(dkit, nullptr);
}

29
src/modules/modem/digital/ModemFSK.h Normal file
View File

@ -0,0 +1,29 @@
#pragma once
#include "ModemDigital.h"
class ModemKitFSK : public ModemKitDigital {
public:
float sps, spacing, bandwidth;
unsigned int m, k;
fskdem demodFSK;
std::vector<liquid_float_complex> inputBuffer;
};
class ModemFSK : public ModemDigital {
public:
ModemFSK();
~ModemFSK();
std::string getName();
Modem *factory();
ModemKit *buildKit(long long sampleRate, int audioSampleRate);
void disposeKit(ModemKit *kit);
void updateDemodulatorCons(int cons);
void demodulate(ModemKit *kit, ModemIQData *input, AudioThreadInput *audioOut);
private:
fskdem dem;
};

4
src/visual/WaterfallCanvas.cpp
View File

@ -461,7 +461,7 @@ void WaterfallCanvas::OnMouseMoved(wxMouseEvent& event) {
bwDiff = -bwDiff;
}
int currentBW = demod->getBandwidth();
int currentBW = dragBW;
currentBW = currentBW + bwDiff;
if (currentBW > CHANNELIZER_RATE_MAX) {
@ -472,6 +472,7 @@ void WaterfallCanvas::OnMouseMoved(wxMouseEvent& event) {
}
demod->setBandwidth(currentBW);
dragBW = currentBW;
}
if (dragState == WF_DRAG_FREQUENCY) {
@ -601,6 +602,7 @@ void WaterfallCanvas::OnMouseDown(wxMouseEvent& event) {
DemodulatorInstance *demod = wxGetApp().getDemodMgr().getActiveDemodulator();
if (demod) {
dragOfs = (long long) (mouseTracker.getMouseX() * (float) getBandwidth()) + getCenterFrequency() - (getBandwidth() / 2) - demod->getFrequency();
dragBW = demod->getBandwidth();
}
wxGetApp().getDemodMgr().setActiveDemodulator(wxGetApp().getDemodMgr().getActiveDemodulator(), false);
}

1
src/visual/WaterfallCanvas.h
View File

@ -68,6 +68,7 @@ private:
float hoverAlpha;
int linesPerSecond;
float scaleMove;
int dragBW;
SpectrumVisualDataQueue visualDataQueue;
Timer gTimer;