CorrelationSummary Class Reference

This is a poorly thought out class that was meant to be a summary of peaks of the correlations of some antennas. More...

#include <CorrelationSummary.h>

Public Member Functions
	CorrelationSummary ()
	Default constructor.
	~CorrelationSummary ()
	Destructor.
	CorrelationSummary (int teventNumber, int tcentreAnt, int sixAnts[6], double deltaT=0)
	Assignment constructor. More...
void	fillErrorsAndFit ()
	The worker function that actually does the fitting.
Double_t	getChiSquared (Double_t tPhiWave, Double_t tThetaWave, Int_t numAnts)
	Tests a given plane wave hypothesis using a either six or ten antennas. More...
Double_t	getDeltaTExpected (Double_t tPhiWave, Double_t tThetaWave, Int_t pairInd)
	For a given plane wave hypothesis returns the expected time difference between one of the pairs of antennas. More...
void	setFitResults (Double_t tPhi, Double_t tTheta, Double_t tPhiErr, Double_t tThetaErr, Double_t tChiSq)
	Sets the result of an external fit.
	ClassDef (CorrelationSummary, 4)
	One of ROOT's magic macros.

Public Attributes
int	eventNumber
	The eventNumber.
int	centreAntenna
	The number of the centre antenna.
int	sixAnts [6]
	The numbers of the six central antennas.
int	nextFourAnts [4]
	The numbers of the four outside antennas.
double	deltaT
	The sampling period used.
int	firstAnt [35]
	There are 35 correlations formed from a set of 13 antennas (5-phi sectors). More...
int	secondAnt [35]
	The index of the second antenna in the 35 possible pairs (3 up-down, 4 left-right, 4 diagonal, 4 outside-neighbour).
double	maxCorVals [35]
	The maximumn correlation value for each of the 35 possible correlations (3 up-down, 4 left-right, 4 diagonal, 4 outside-neighbour).
double	maxCorTimes [35]
	The time of the maximum correlation value for each of the 35 possible correlations (3 up-down, 4 left-right, 4 diagonal, 4 outside-neighbour).
double	rmsCorVals [35]
	The rms correlation value for each of the 35 possible correlations (3 up-down, 4 left-right, 4 diagonal, 4 outside-neighbour).
double	secondCorVals [35][2]
	The peak of the next highest correlation values (tore both left and right vals).
double	secondCorTimes [35][2]
	The time of the next highest correlation values (tore both left and right vals).
double	deltaTErr [35]
	The error on each of the 35 deltaTs (no idea right now what this means).
double	phiWave
	The azimuthal angle of the plane wave (in payload centric coordinates).
double	thetaWave
	The elevation angle of the plane wave (in payload centric coordinates).
double	phiWaveErr
	The error on the azimuthal angle of the plane wave (in payload centric coordinates).
double	thetaWaveErr
	The error on the elevation angle of the plane wave (in payload centric coordinates).
double	chiSq
	The chi-squared of the fit.
int	ndf
	The number of degrees of freedom – no frigging idea I just make it up.
Double_t	fAntPhi [35][2]
	A lookup table for antenna postions.
Double_t	fAntR [35][2]
	A lookup table for antenna postions.
Double_t	fAntZ [35][2]
	A lookup table for antenna postions.

Detailed Description

This is a poorly thought out class that was meant to be a summary of peaks of the correlations of some antennas.

This is a poorly thought outclass that was meant to be a summary of peaks of the correlations of some antennas.

Definition at line 20 of file CorrelationSummary.h.

Inheritance diagram for CorrelationSummary:

Collaboration diagram for CorrelationSummary:

Constructor & Destructor Documentation

CorrelationSummary::CorrelationSummary	(	int	teventNumber,
		int	tcentreAnt,
		int	sixAnts[6],
		double	deltaT = 0
	)

Assignment constructor.

Parameters

teventNumber	The event number.
tcentreAnt	The centre antenna used in the correlation.
sixAnts	An array of the six antennas used.
deltaT	The sampling period used in the interpolation (or zero)

Member Function Documentation

Double_t CorrelationSummary::getChiSquared	(	Double_t	tPhiWave,
		Double_t	tThetaWave,
		Int_t	numAnts
	)

Tests a given plane wave hypothesis using a either six or ten antennas.

Parameters

tPhiWave	The (payload centric) azimuthal angle of the plane wave.
tThetaWave	The (payload centric) elevation angle of the plane wave.
numAnts	The number of antennas to use in the test.

Returns

The chi-squared of this plane wave hypothesis.

Definition at line 82 of file CorrelationSummary.cxx.

Double_t CorrelationSummary::getDeltaTExpected	(	Double_t	tPhiWave,
		Double_t	tThetaWave,
		Int_t	pairInd
	)

For a given plane wave hypothesis returns the expected time difference between one of the pairs of antennas.

Parameters

tPhiWave	The (payload centric) azimuthal angle of the plane wave.
tThetaWave	The (payload centric) elevation angle of the plane wave.
pairInd	The index of the pair (the numbering system is the 3 top bottom pairs, 4 left-right pairs, 4 diagonal pairs, plus the 4 'neighbour' + the 4 (next phi to neighbour).

Returns

The expected deltaT for this plane wave and this pair of antennas.

Definition at line 95 of file CorrelationSummary.cxx.

Member Data Documentation

int CorrelationSummary::firstAnt[35]

There are 35 correlations formed from a set of 13 antennas (5-phi sectors).

For clarity in the list below the antennas are described using the following names, for cases where there is a nadir antenna in the centre phi sector we have:

• LLT LT CT RT RRT
• LLB LB CB RB RRB
• LLN X CN X RRN In this scheme the 35 correlations are:
• "[0]" LT - LB
• "[1]" CT - CB
• "[2]" RT - RB
• "[3]" LT - CT
• "[4]" CT - RT
• "[5]" LB - CB
• "[6]" CB - RB
• "[7]" LT - CB
• "[8]" RT - CB
• "[9]" CT - LB
• "[10]" CT - RB
• "[11]" LLT - CT
• "[12]" CT - RRT
• "[13]" LLB - CB
• "[14]" CB - RRB
• "[15]" LLT - LT
• "[16]" RT - RRT
• "[17]" LLB - LB
• "[18]" RB - RRT
• "[19]" CN - LLN
• "[20]" CN - RRN
• "[21]" LLN - LLB
• "[22]" LLN - LB
• "[23]" CN - CB
• "[24]" CN - LB
• "[25]" CN - RB
• "[26]" RRN - RB
• "[27]" RRN - RRB
• "[28]" LLN - LLT
• "[29]" LLN - LT
• "[30]" CN - CT
• "[31]" CN - LT
• "[32]" CN - RT
• "[33]" RRN - RT
• "[34]" RRN - RRT

For cases where there isn't a nadir antenna in the centre phi sector, then we have:

• LLT LT CT RT RRT

LLB LB CB RB RRB

• X LN X RN X In this scheme the 35 correlations are (RN-LT is missing):
• "[0]" LT - LB
• "[1]" CT - CB
• "[2]" RT - RB
• "[3]" LT - CT
• "[4]" CT - RT
• "[5]" LB - CB
• "[6]" CB - RB
• "[7]" LT - CB
• "[8]" RT - CB
• "[9]" CT - LB
• "[10]" CT - RB
• "[11]" LLT - CT
• "[12]" CT - RRT
• "[13]" LLB - CB
• "[14]" CB - RRB
• "[15]" LLT - LT
• "[16]" RT - RRT
• "[17]" LLB - LB
• "[18]" RB - RRT
• "[19]" LN - RN
• "[20]" LN - LLB
• "[21]" LN - LB
• "[22]" LN - CB
• "[23]" LN - RB
• "[24]" RN - RRB
• "[25]" RN - RB
• "[26]" RN - CB
• "[27]" RN - LB
• "[28]" LN - LLT
• "[29]" LN - LT
• "[30]" LN - CT
• "[31]" LN - RT
• "[32]" RN - RRT
• "[33]" RN - RT
• "[34]" RN - CT

Definition at line 154 of file CorrelationSummary.h.

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

• components/anitaEventCorrelator/include/CorrelationSummary.h
• components/anitaEventCorrelator/src/CorrelationSummary.cxx