NoiseMap Class Reference

Base Class to represent strip-dependent noise map. More...

#include <NoiseMap.h>

Public Member Functions
	NoiseMap ()
	Constructor
virtual	~NoiseMap ()
	Destructor.
void	setADU (double eInADU)
	Set charge per ADC unit.
void	setNoiseLevel (float noise)
	Override the noise level.
virtual void	setSensorID (VxdID sensorID, bool side)
	Set the sensorID currently used.
float	getSignificance (const Sample &sample) const
	Return the sigma-significance of a signal, that is, signal divided by noise level.
virtual float	getNoise (short) const
	Return the noise level for a given strip.
virtual float	getNoise (const Sample &sample) const
	Return the noise value for a given strip.
bool	operator() (const Sample &sample, float significance) const
	Check whether a signal exceeds a given significance.
bool	operator() (float signal, float significance) const
	Check whether a signal exceeds a given significance using the average noise level.

Protected Attributes
double	m_eInADU
	Charge corresponding to 1 ADU.
VxdID	m_sensorID
	VxdID of the current sensor.
bool	m_isU
	Side of current sensor.
float	m_noiseLevel
	Noise level in strips.

Detailed Description

Base Class to represent strip-dependent noise map.

Currently there is only sensor and side dependence implemented.

Definition at line 29 of file NoiseMap.h.

Constructor & Destructor Documentation

NoiseMap()

NoiseMap ( )

inline

Constructor

Definition at line 32 of file NoiseMap.h.

: m_eInADU(1.0), m_sensorID(0), m_isU(false), m_noiseLevel(0) {}

~NoiseMap()

virtual ~NoiseMap ( )

inlinevirtual

Destructor.

Definition at line 35 of file NoiseMap.h.

{}

Member Function Documentation

getNoise() [1/2]

virtual float getNoise ( const Sample &  sample ) const

inlinevirtual

Return the noise value for a given strip.

Parameters

sample

Sample at whose position we want noise level (Sample not used)

Returns

noise level for the Sample's strip

Definition at line 73 of file NoiseMap.h.

{ return m_noiseLevel; }

getNoise() [2/2]

virtual float getNoise ( short  ) const

inlinevirtual

Return the noise level for a given strip.

Returns

noise level

Definition at line 67 of file NoiseMap.h.

{ return m_noiseLevel; }

getSignificance()

float getSignificance ( const Sample &  sample ) const

inline

Return the sigma-significance of a signal, that is, signal divided by noise level.

Parameters

sample

Sample of a strip.

Returns

The ratio of maximum strip signal and noise level.

Definition at line 63 of file NoiseMap.h.

{ return sample.getCharge() / getNoise(sample); }

operator()() [1/2]

bool operator() ( const Sample &  sample, float  significance  ) const

inline

Check whether a signal exceeds a given significance.

Parameters

sample	strip to check
significance	minimum significance

Returns

true if the maximum signal of the strip exceeds the given significance.

Definition at line 80 of file NoiseMap.h.

      { return getSignificance(sample) >= significance; }

operator()() [2/2]

bool operator() ( float  signal, float  significance  ) const

inline

Check whether a signal exceeds a given significance using the average noise level.

Parameters

signal	signal to check
significance	minimum significance

Definition at line 87 of file NoiseMap.h.

{ return signal / m_noiseLevel >= significance; }

setADU()

void setADU ( double  eInADU )

inline

Set charge per ADC unit.

If signals are in ADC units, the default setting of 1 should be overriden.

Parameters

eInADU

charge in electrons corresponding to 1 ADU.

Definition at line 42 of file NoiseMap.h.

{ m_eInADU = eInADU; }

setNoiseLevel()

void setNoiseLevel ( float  noise )

inline

Override the noise level.

Definition at line 45 of file NoiseMap.h.

{ m_noiseLevel = noise; }

setSensorID()

virtual void setSensorID ( VxdID  sensorID, bool  side  )

inlinevirtual

Set the sensorID currently used.

Definition at line 48 of file NoiseMap.h.

      {
        const SensorInfo& info = dynamic_cast<const SensorInfo&>(VXD::GeoCache::getInstance().getSensorInfo(sensorID));
        m_sensorID = sensorID;
        if (side)
          m_noiseLevel = info.getElectronicNoiseU() / m_eInADU;
        else
          m_noiseLevel = info.getElectronicNoiseV() / m_eInADU;
        m_isU = side;
      }

Member Data Documentation

m_eInADU

double m_eInADU

protected

Charge corresponding to 1 ADU.

Definition at line 91 of file NoiseMap.h.

m_isU

bool m_isU

protected

Side of current sensor.

Definition at line 95 of file NoiseMap.h.

m_noiseLevel

float m_noiseLevel

protected

Noise level in strips.

Definition at line 97 of file NoiseMap.h.

m_sensorID

VxdID m_sensorID

protected

VxdID of the current sensor.

Definition at line 93 of file NoiseMap.h.

---

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

• svd/reconstruction/include/NoiseMap.h