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/data/refman/pasoursint/CMSSW_5_3_0/src/SimMuon/CSCDigitizer/src/CSCCrosstalkGenerator.cc

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00001 #include "SimMuon/CSCDigitizer/src/CSCCrosstalkGenerator.h"
00002 #include "SimMuon/CSCDigitizer/src/CSCAnalogSignal.h"
00003 
00004 CSCAnalogSignal CSCCrosstalkGenerator::getCrosstalk(const CSCAnalogSignal & inputSignal) const {
00005   int nBins = inputSignal.getSize();
00006   float binSize = inputSignal.getBinSize();
00007   std::vector<float> binValues(nBins);
00008   
00009   for(int outputBin = 0; outputBin < nBins; ++outputBin) {
00010     float aTime = outputBin*binSize - theDelay;
00011     float slope = inputSignal.getValue(aTime) - inputSignal.getValue(aTime-1.);
00012     binValues[outputBin] = slope * theCrosstalk 
00013                          + theResistiveFraction * inputSignal.getValue(aTime);
00014   }
00015 
00016   return CSCAnalogSignal(0, binSize, binValues, 0., inputSignal.getTimeOffset());
00017 }
00018   
00019 
00020 float CSCCrosstalkGenerator::ratio(const CSCAnalogSignal & crosstalkSignal, const CSCAnalogSignal & signal) const
00021 {
00022 
00023   float maxFirst = 0., maxSecond = 0.;
00024   int nbins = signal.getSize();
00025   for(int i = 1; i < nbins; ++i)
00026   {
00027     float v1 = signal.getBinValue(i);
00028     float v2 = crosstalkSignal.getBinValue(i);
00029 
00030     if(v1 > maxFirst) maxFirst = v1;
00031     if(v2 > maxSecond) maxSecond = v2;
00032 
00033   }
00034 
00035   return maxSecond/maxFirst;
00036 }
00037