---

SiStripTT6CommonModeNoiseSubtraction Class Reference

#include <CommonTools/SiStripZeroSuppression/interface/SiStripTT6CommonModeNoiseSubtraction.h>

Inheritance diagram for SiStripTT6CommonModeNoiseSubtraction:

List of all members.

Public Member Functions
void	init (const edm::EventSetup &es)
	SiStripTT6CommonModeNoiseSubtraction (double in)
void	subtract (const uint32_t &, std::vector< int16_t > &)
	~SiStripTT6CommonModeNoiseSubtraction ()

---

Detailed Description

Definition at line 7 of file SiStripTT6CommonModeNoiseSubtraction.h.

---

Constructor & Destructor Documentation

SiStripTT6CommonModeNoiseSubtraction::SiStripTT6CommonModeNoiseSubtraction

(

double

in

)

[inline]

Definition at line 10 of file SiStripTT6CommonModeNoiseSubtraction.h.

:SiStripCommonModeNoiseSubtractor(in){};

SiStripTT6CommonModeNoiseSubtraction::~SiStripTT6CommonModeNoiseSubtraction

(

)

[inline]

Definition at line 11 of file SiStripTT6CommonModeNoiseSubtraction.h.

{};

---

Member Function Documentation

void SiStripTT6CommonModeNoiseSubtraction::init

(

const edm::EventSetup &

es

)

[virtual]

Implements SiStripCommonModeNoiseSubtractor.

Definition at line 6 of file SiStripTT6CommonModeNoiseSubtraction.cc.

References edm::EventSetup::get(), SiStripCommonModeNoiseSubtractor::noiseHandle, and SiStripCommonModeNoiseSubtractor::qualityHandle.

                                                                      {
  es.get<SiStripNoisesRcd>().get(noiseHandle);
  es.get<SiStripQualityRcd>().get(qualityHandle);
}

void SiStripTT6CommonModeNoiseSubtraction::subtract	(	const uint32_t &	detId,
		std::vector< int16_t > &	digis
	)			[virtual]

Implements SiStripCommonModeNoiseSubtractor.

Definition at line 11 of file SiStripTT6CommonModeNoiseSubtraction.cc.

References funct::abs(), SiStripCommonModeNoiseSubtractor::cut_to_avoid_signal_, lat::endl(), edm::isDebugEnabled(), LogDebug, ls, SiStripCommonModeNoiseSubtractor::noiseHandle, SiStripCommonModeNoiseSubtractor::qualityHandle, and ss.

                                                                                                  {

  short FixedBias=128;
  SiStripNoises::Range detNoiseRange = noiseHandle->getRange(detId);
  SiStripQuality::Range detQualityRange = qualityHandle->getRange(detId);
#ifdef DEBUG_SiStripZeroSuppression_
  std::stringstream ss;  
  if (edm::isDebugEnabled())
    ss << "[SiStripTT6CommonModeNoiseSubtraction::subtract] digis.size()= " << digis.size() << std::endl;
#endif

  std::vector<int16_t>::iterator fs;
  std::vector<int16_t>::iterator ls;
  double sumVal = 0.0;
  double sumWt =  0.0;
  
  for (uint16_t istrip=0;istrip<digis.size();++istrip){
    if ( !qualityHandle->IsStripBad(detQualityRange,istrip) ) {
      float stripNoise=noiseHandle->getNoise(istrip,detNoiseRange);
      if( abs(digis[istrip]-FixedBias) < cut_to_avoid_signal_*stripNoise ) { 
        double nWeight = 1/(stripNoise*stripNoise);
        sumVal += (digis[istrip]-FixedBias)*nWeight;
        sumWt += nWeight;
      }
    }
     
    if (istrip%128 == 127){
      double CM = (sumWt) ? sumVal/sumWt :0.0;
      
      fs = digis.begin()+istrip-127;
      ls = digis.begin()+istrip+1;
      
#ifdef DEBUG_SiStripZeroSuppression_
      if (edm::isDebugEnabled())
        ss << " APV= " << (uint16_t) istrip/128 << " CM= " << CM << std::endl;
#endif      
      while (fs < ls) {
        *fs = (int16_t) (*fs-FixedBias-CM);
#ifdef DEBUG_SiStripZeroSuppression_
        if (edm::isDebugEnabled())
          ss << " adc CM subtr " << *fs << std::endl;
#endif
        fs++;
      }
      sumVal = 0.0;
      sumWt =  0.0;
    }
  }
#ifdef DEBUG_SiStripZeroSuppression_
  LogDebug("SiStripZeroSuppression") << ss.str().c_str();
#endif
}

---

The documentation for this class was generated from the following files:

• CommonTools/SiStripZeroSuppression/interface/SiStripTT6CommonModeNoiseSubtraction.h
• CommonTools/SiStripZeroSuppression/src/SiStripTT6CommonModeNoiseSubtraction.cc

---