SimpleNoiseCalculator Class Reference

#include <SimpleNoiseCalculator.h>

Inheritance diagram for SimpleNoiseCalculator:

Public Member Functions
int	nevents () const
void	newEvent ()
ApvAnalysis::PedestalType	noise () const
void	resetNoise ()
void	setStripNoise (ApvAnalysis::PedestalType &in)
	SimpleNoiseCalculator ()
	SimpleNoiseCalculator (int evnt_ini, bool useDB)
ApvAnalysis::PedestalType	stripCMPSubtractedSignal () const
float	stripNoise (int in) const
void	updateNoise (ApvAnalysis::PedestalType &in)
void	updateStatus ()
virtual	~SimpleNoiseCalculator ()
Public Member Functions inherited from TkNoiseCalculator
TkStateMachine *	status ()

Protected Member Functions
void	init ()

Protected Attributes
bool	alreadyUsedEvent
int	eventsRequiredToCalibrate_
int	numberOfEvents
ApvAnalysis::PedestalType	theCMPSubtractedSignal
std::vector< unsigned short >	theEventPerStrip
ApvAnalysis::PedestalType	theNoise
std::vector< double >	theNoiseSqSum
std::vector< double >	theNoiseSum
bool	useDB_
Protected Attributes inherited from TkNoiseCalculator
TkStateMachine	theStatus

Detailed Description

Concrete implementation of TkNoiseCalculator for Simple.

Definition at line 9 of file SimpleNoiseCalculator.h.

Constructor & Destructor Documentation

SimpleNoiseCalculator::SimpleNoiseCalculator

(

)

Definition at line 10 of file SimpleNoiseCalculator.cc.

References gather_cfg::cout, and init().

                                             :
  numberOfEvents(0) ,
  alreadyUsedEvent(false)  
{
  if (0) cout << "Constructing SimpleNoiseCalculator " << endl;
  init();
}

SimpleNoiseCalculator::SimpleNoiseCalculator	(	int	evnt_ini,
		bool	useDB
	)

Definition at line 18 of file SimpleNoiseCalculator.cc.

References gather_cfg::cout, eventsRequiredToCalibrate_, init(), and useDB_.

                                                                      :
  numberOfEvents(0) ,
  alreadyUsedEvent(false)  
{
  if (0) cout << "Constructing SimpleNoiseCalculator " << endl;
  useDB_ = use_DB;
  eventsRequiredToCalibrate_ = evnt_ini;
  //  eventsRequiredToUpdate_    = evnt_iter;
  //  cutToAvoidSignal_          = sig_cut;
  init();
}

SimpleNoiseCalculator::~SimpleNoiseCalculator ( )

virtual

Definition at line 43 of file SimpleNoiseCalculator.cc.

References gather_cfg::cout.

                                              {
  if (0) cout << "Destructing SimpleNoiseCalculator " << endl;
}

Member Function Documentation

void SimpleNoiseCalculator::init ( void  )

protected

Definition at line 32 of file SimpleNoiseCalculator.cc.

References theCMPSubtractedSignal, theEventPerStrip, theNoise, theNoiseSqSum, and theNoiseSum.

Referenced by SimpleNoiseCalculator().

                                 {
  theCMPSubtractedSignal.clear();
  theNoise.clear();
  theNoiseSum.clear();
  theNoiseSqSum.clear();
  theEventPerStrip.clear();
  // theStatus.setCalibrating();
}

int SimpleNoiseCalculator::nevents ( ) const

inline

Definition at line 22 of file SimpleNoiseCalculator.h.

References numberOfEvents.

{return numberOfEvents;}

void SimpleNoiseCalculator::newEvent ( )

virtual

Tell noise calculator that a new event is available

Reimplemented from TkNoiseCalculator.

Definition at line 124 of file SimpleNoiseCalculator.cc.

References alreadyUsedEvent.

                                     {
  alreadyUsedEvent = false;
}

ApvAnalysis::PedestalType SimpleNoiseCalculator::noise ( ) const

inlinevirtual

Return reconstructed noise

Implements TkNoiseCalculator.

Definition at line 20 of file SimpleNoiseCalculator.h.

References theNoise.

{return theNoise;}

void SimpleNoiseCalculator::resetNoise ( )

inlinevirtual

Implements TkNoiseCalculator.

Definition at line 25 of file SimpleNoiseCalculator.h.

References theNoise.

{theNoise.clear();}

void SimpleNoiseCalculator::setStripNoise ( ApvAnalysis::PedestalType &  in )

inlinevirtual

Implements TkNoiseCalculator.

Definition at line 19 of file SimpleNoiseCalculator.h.

References recoMuon::in, and theNoise.

{theNoise.clear(); theNoise = in;}

ApvAnalysis::PedestalType SimpleNoiseCalculator::stripCMPSubtractedSignal ( ) const

inline

Definition at line 29 of file SimpleNoiseCalculator.h.

References theCMPSubtractedSignal.

               {return theCMPSubtractedSignal;}

float SimpleNoiseCalculator::stripNoise ( int  in ) const

inlinevirtual

Implements TkNoiseCalculator.

Definition at line 21 of file SimpleNoiseCalculator.h.

References recoMuon::in, and theNoise.

{return theNoise[in];}

void SimpleNoiseCalculator::updateNoise ( ApvAnalysis::PedestalType &  )

virtual

Update noise with current event

Implements TkNoiseCalculator.

Definition at line 57 of file SimpleNoiseCalculator.cc.

References alreadyUsedEvent, gather_cfg::cout, eventsRequiredToCalibrate_, i, TkStateMachine::isCalibrating(), TkStateMachine::isUpdating(), numberOfEvents, mathSSE::sqrt(), theCMPSubtractedSignal, theEventPerStrip, theNoise, theNoiseSqSum, theNoiseSum, TkNoiseCalculator::theStatus, and updateStatus().

                                                                  {
  if (alreadyUsedEvent == false) {
    alreadyUsedEvent = true;
    numberOfEvents++;

    if (numberOfEvents == 1 && theNoise.size() != in.size()) {
      edm::LogError("SimpleNoiseCalculator:updateNoise") << " You did not initialize the Noise correctly prior to noise calibration.";
    }

    // Initialize sums used for estimating noise.
    if (numberOfEvents == 1)
    {
      theNoiseSum.clear();
      theNoiseSqSum.clear();
      theEventPerStrip.clear();

      theNoiseSum.resize(in.size(),0.0);
      theNoiseSqSum.resize(in.size(),0.0);
      theEventPerStrip.resize(in.size(),0);
    }    

    unsigned int i;

    // At every event Update sums used for estimating noise.
    for (i = 0; i < in.size(); i++) {

        theNoiseSum[i]   += in[i];
        theNoiseSqSum[i] += in[i]*in[i];
        theEventPerStrip[i]++;
    }

    // Calculate noise.
    if ((theStatus.isCalibrating() && numberOfEvents == eventsRequiredToCalibrate_) || theStatus.isUpdating() )
    {
      theCMPSubtractedSignal.clear();
      theNoise.clear();

      for (i = 0; i < in.size(); i++) {
        double avVal   = (theEventPerStrip[i]) 
          ? theNoiseSum[i]/(theEventPerStrip[i]):0.0;
        double sqAvVal = (theEventPerStrip[i]) 
          ? theNoiseSqSum[i]/(theEventPerStrip[i]):0.0;
        double corr_fac = (theEventPerStrip[i] > 1) 
          ? (theEventPerStrip[i]/(theEventPerStrip[i]-1)) : 1.0;
        double rmsVal  =  (sqAvVal - avVal*avVal > 0.0) 
          ? sqrt(corr_fac * (sqAvVal - avVal*avVal)) : 0.0; 
      
        theCMPSubtractedSignal.push_back(static_cast<float>(avVal));

        theNoise.push_back(static_cast<float>(rmsVal));
  
        if (0) cout << " SimpleNoiseCalculator::updateNoise " 
                    << theNoiseSum[i] << " " 
                    << theNoiseSqSum[i] << " "
                    << theEventPerStrip[i] << " "  
                    << avVal << " " 
                    << sqAvVal << " " 
                    << (sqAvVal - avVal*avVal) << " " 
                    << rmsVal << endl;
      }
    }
    updateStatus();
  }
}

void SimpleNoiseCalculator::updateStatus ( )

virtual

Request that status flag be updated

Implements TkNoiseCalculator.

Definition at line 49 of file SimpleNoiseCalculator.cc.

References eventsRequiredToCalibrate_, TkStateMachine::isCalibrating(), numberOfEvents, TkStateMachine::setUpdating(), TkNoiseCalculator::theStatus, and useDB_.

Referenced by updateNoise().

                                        {
  if ( (theStatus.isCalibrating() && numberOfEvents >= eventsRequiredToCalibrate_) || (useDB_==true && numberOfEvents ==1) ) {
    theStatus.setUpdating();
  }
}

Member Data Documentation

bool SimpleNoiseCalculator::alreadyUsedEvent

protected

Definition at line 41 of file SimpleNoiseCalculator.h.

Referenced by newEvent(), and updateNoise().

int SimpleNoiseCalculator::eventsRequiredToCalibrate_

protected

Definition at line 44 of file SimpleNoiseCalculator.h.

Referenced by SimpleNoiseCalculator(), updateNoise(), and updateStatus().

int SimpleNoiseCalculator::numberOfEvents

protected

Definition at line 40 of file SimpleNoiseCalculator.h.

Referenced by nevents(), updateNoise(), and updateStatus().

ApvAnalysis::PedestalType SimpleNoiseCalculator::theCMPSubtractedSignal

protected

Definition at line 37 of file SimpleNoiseCalculator.h.

Referenced by init(), stripCMPSubtractedSignal(), and updateNoise().

std::vector<unsigned short> SimpleNoiseCalculator::theEventPerStrip

protected

Definition at line 39 of file SimpleNoiseCalculator.h.

Referenced by init(), and updateNoise().

ApvAnalysis::PedestalType SimpleNoiseCalculator::theNoise

protected

Definition at line 36 of file SimpleNoiseCalculator.h.

Referenced by init(), noise(), resetNoise(), setStripNoise(), stripNoise(), and updateNoise().

std::vector<double> SimpleNoiseCalculator::theNoiseSqSum

protected

Definition at line 38 of file SimpleNoiseCalculator.h.

Referenced by init(), and updateNoise().

std::vector<double> SimpleNoiseCalculator::theNoiseSum

protected

Definition at line 38 of file SimpleNoiseCalculator.h.

Referenced by init(), and updateNoise().

bool SimpleNoiseCalculator::useDB_

protected

Definition at line 42 of file SimpleNoiseCalculator.h.

Referenced by SimpleNoiseCalculator(), and updateStatus().