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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,130 @@ | ||
| /* | ||
| * LMCFIRHandlerCore.cc | ||
| * | ||
| * Created on: May 11, 2018 | ||
| * Author: P. T. Surukuchi | ||
| */ | ||
|
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| #include "LMCConst.hh" | ||
| #include "LMCFIRHandler.hh" | ||
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| #include "logger.hh" | ||
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| namespace locust | ||
| { | ||
| LOGGER( lmclog, "FIRHandlerCore" ); | ||
|
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| FIRHandlerCore::FIRHandlerCore(): | ||
| fNFIRBins(-99), | ||
| fFIRResolution(1e-12), | ||
| fNFIRSkips(1) | ||
| { | ||
| } | ||
|
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| FIRHandlerCore::~FIRHandlerCore() | ||
| { | ||
| } | ||
|
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| bool FIRHandlerCore::Configure(const scarab::param_node& aParam) | ||
| { | ||
| return true; | ||
| } | ||
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| bool FIRHandlerCore::ends_with(const std::string &str, const std::string &suffix) | ||
| { | ||
| //copied from https://stackoverflow.com/a/20446239 | ||
| return str.size() >= suffix.size() && | ||
| str.compare(str.size() - suffix.size(), suffix.size(), suffix) == 0; | ||
| } | ||
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| bool FIRHandlerCore::ReadFIRFile() | ||
| { | ||
| fNFIRBins=0; | ||
| if(!ends_with(fFIRFilename,".txt")) | ||
| { | ||
| LERROR(lmclog,"The FIR file should end in .txt"); | ||
| return false; | ||
| } | ||
| double firIndex; | ||
| double filterMagnitude; | ||
| FILE *firFile; | ||
| firFile=fopen(fFIRFilename.c_str(),"r"); | ||
| //logic copied from /LMCPatchSignalGenerator.cc | ||
| int count=0; | ||
| while (!feof(firFile)){ | ||
| fscanf(firFile,"%lf %lf",&firIndex,&filterMagnitude); | ||
| if (count%fNFIRSkips==0) | ||
| { | ||
| fFIRFilter.push_back(filterMagnitude); | ||
| ++fNFIRBins; | ||
| } | ||
| ++count; | ||
| } | ||
| fclose(firFile); | ||
| return true; | ||
| } | ||
|
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| double FIRHandlerCore::ConvolveWithFIRFilter(std::deque<double> delayedVoltageBuffer) | ||
| { | ||
| double convolution=0.0; | ||
| if(fNFIRBins<=0){ | ||
| LERROR(lmclog,"Number of bins in the filter should be positive"); | ||
| } | ||
| for(int i=0;i<fNFIRBins;++i) | ||
| { | ||
| convolution+=fFIRFilter[i]*delayedVoltageBuffer[i]; | ||
| } | ||
| return convolution; | ||
| } | ||
|
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| FIRTransmitterHandler::FIRTransmitterHandler():FIRHandlerCore() | ||
| { | ||
| } | ||
|
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| FIRTransmitterHandler::~FIRTransmitterHandler() | ||
| { | ||
| } | ||
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| bool FIRTransmitterHandler::Configure(const scarab::param_node& aParam) | ||
| { | ||
| if( aParam.has( "fir-transmitter-filename" ) ) | ||
| { | ||
| fFIRFilename=aParam["fir-transmitter-filename"]().as_string(); | ||
| } | ||
| if( aParam.has( "fir-transmitter-dt" ) ) | ||
| { | ||
| fFIRResolution=aParam["fir-transmitter-dt"]().as_double(); | ||
| } | ||
| if( aParam.has( "fir-transmitter-nskips" ) ) | ||
| { | ||
| fNFIRSkips=aParam["fir-transmitter-nskips"]().as_int(); | ||
| } | ||
| return true; | ||
| } | ||
|
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| FIRReceiverHandler::FIRReceiverHandler():FIRHandlerCore() | ||
| { | ||
| } | ||
|
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| FIRReceiverHandler::~FIRReceiverHandler() | ||
| { | ||
| } | ||
|
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| bool FIRReceiverHandler::Configure(const scarab::param_node& aParam) | ||
| { | ||
| if( aParam.has( "fir-receiver-filename" ) ) | ||
| { | ||
| fFIRFilename=aParam["fir-receiver-filename"]().as_string(); | ||
| } | ||
| if( aParam.has( "fir-receiver-dt" ) ) | ||
| { | ||
| fFIRResolution=aParam["fir-receiver-dt"]().as_double(); | ||
| } | ||
| if( aParam.has( "fir-receiver-nskips" ) ) | ||
| { | ||
| fNFIRSkips=aParam["fir-receiver-nskips"]().as_int(); | ||
| } | ||
| return true; | ||
| } | ||
|
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||
| } /* namespace locust */ |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,103 @@ | ||
| #ifndef LMCFIRHANDLERCORE_HH_ | ||
| #define LMCFIRHANDLERCORE_HH_ | ||
|
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| #include "LMCException.hh" | ||
| #include "param.hh" | ||
|
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| namespace locust | ||
| { | ||
| /*! | ||
| @class FIRHandlerCore | ||
| @author P. T. Surukuchi | ||
| @brief Handles opening of the FIR files, saving them into objects to be used for convolution | ||
| @details | ||
| Available configuration options: | ||
| - "fir-transmitter(receiver)-filename": string -- The location of the file containing impulse response | ||
| - "fir-transmitter(receiver)-dt": double (1e-12) -- The size of filter sample width (seconds) | ||
| - "fir-transmitter(receiver)-nskips": int (1) -- Number of skips to be peformed in reading from the FIR file, this will deteremine the number of FIR bins | ||
| */ | ||
|
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| class FIRHandlerCore | ||
| { | ||
| public: | ||
| FIRHandlerCore(); | ||
| virtual ~FIRHandlerCore(); | ||
|
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| // Member functions | ||
| virtual bool Configure( const scarab::param_node& aNode); | ||
| bool ReadFIRFile(); | ||
| double ConvolveWithFIRFilter(std::deque<double>);// Convolve input signal (voltage or field) with FIR | ||
| int GetFilterSize() const;//Number of entries in the filter | ||
| double GetFilterResolution() const;//Get the resolution of the filter | ||
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| protected: | ||
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| // Member variables | ||
| std::string fFIRFilename; | ||
| std::vector<double> fFIRFilter; | ||
| int fNFIRBins; | ||
| double fFIRResolution; | ||
| int fNFIRSkips; | ||
| // bool fIsTransmitter;//Ad-hoc definition of FIR filter type if true transmitter other-wise receiver | ||
|
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| //Member functions | ||
| //Check weather the given input string ends with another string | ||
| //PTS: Should be moved into a core class | ||
| bool ends_with(const std::string &, const std::string &); | ||
| }; | ||
|
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| inline int FIRHandlerCore::GetFilterSize() const | ||
| { | ||
| return fNFIRBins; | ||
| } | ||
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| inline double FIRHandlerCore::GetFilterResolution() const | ||
| { | ||
| return fFIRResolution; | ||
| } | ||
|
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| /*! | ||
| @class FIRTransmitterHandler | ||
| @author P. T. Surukuchi | ||
| @brief Handles transmitter FIR, saving them into objects to be used for convolution | ||
| @details | ||
| Available configuration options: | ||
| - "fir-transmitter-filename": string -- The location of the file containing impulse response function | ||
| - "fir-transmitter-dt": double (1e-12) -- The size of filter sample width (seconds) | ||
| - "fir-transmitter-nskips": int (1) -- Number of skips to be peformed in reading from the FIR file, this will deteremine the number of FIR bins | ||
| */ | ||
|
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| class FIRTransmitterHandler: public FIRHandlerCore | ||
| { | ||
| public: | ||
| FIRTransmitterHandler(); | ||
| virtual ~FIRTransmitterHandler(); | ||
|
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| // Member functions | ||
| bool Configure( const scarab::param_node& aNode); | ||
| }; | ||
|
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| /*! | ||
| @class FIRReceiverHandler | ||
| @author P. T. Surukuchi | ||
| @brief Handles receiver FIR, saving them into objects to be used for convolution | ||
| @details | ||
| Available configuration options: | ||
| - "fir-transmitter-filename": string -- The location of the file containing impulse response function | ||
| - "fir-transmitter-dt": double (1e-12) -- The size of filter sample width (seconds) | ||
| - "fir-transmitter-nskips": int (1) -- Number of skips to be peformed in reading from the FIR file, this will deteremine the number of FIR bins | ||
| */ | ||
|
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| class FIRReceiverHandler: public FIRHandlerCore | ||
| { | ||
| public: | ||
| FIRReceiverHandler(); | ||
| virtual ~FIRReceiverHandler(); | ||
|
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| // Member functions | ||
| bool Configure( const scarab::param_node& aNode); | ||
| }; | ||
|
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| } /*namespace locust*/ | ||
|
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| #endif/*LMCFIRHANDLERCORE_HH_ */ |
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