LISAspecifics.c File Reference

LISA-specific implementations for Fstat/continuous-wave searches on LISA TDI observables. More...

Prototypes
int	XLALgetLISAtwoArmRAAIFO (CmplxDetectorTensor *detT, const DetectorArm *detArmA, const DetectorArm *detArmB, const FreqSkypos_t *freq_skypos)
	return a rigid-adiabatic-approximation (RAA) two-arm IFO detector tensor for LISA, given 'armA' and 'armB' This implements LISA RAA-tensor using spacecraft-orbits described by Eq. More...
static REAL4	safe_sinc (REAL4 x)
	Unnormalized sinc(x) = sin(x) / x. More...
BOOLEAN	XLALisLISAdetector (const LALDetector *det)
	Return true if 'det' is a LISA LALDetector struct. More...
int	XLALregisterLISAdetectors (const CHAR prefixLetter)
	Set up the LALDetector structs representing LISA X, Y, Z TDI observables. More...
int	XLALprecomputeLISAarms (DetectorState *detState)
	Precompute the arm-geometry for LISA, which is later used for assembling the RAA detector-tensor (which depends on frequency and skyposition. More...
int	XLALgetLISADetectorTensorLWL (SymmTensor3 *detT, const Detector3Arms detArms, CHAR channelNum)
int	XLALgetLISADetectorTensorRAA (CmplxDetectorTensor *detT, const Detector3Arms detArms, CHAR channelNum, const FreqSkypos_t *freq_skypos)

Detailed Description

LISA-specific implementations for Fstat/continuous-wave searches on LISA TDI observables.

Author

R. Prix, J. T. Whelan

Definition in file LISAspecifics.c.

Go to the source code of this file.

Macros
#define	TRUE   (1==1)
#define	FALSE   (1==0)
#define	SCALAR(u, v)   ((u)[0]*(v)[0] + (u)[1]*(v)[1] + (u)[2]*(v)[2])
	Simple Euklidean scalar product for two 3-dim vectors in cartesian coords. More...
#define	SQ(x)   ( (x) * (x) )
#define	GPS2REAL8(gps)   (1.0 * (gps).gpsSeconds + 1.e-9 * (gps).gpsNanoSeconds )
#define	LAL_SQRT1_3   0.5773502691896257645091487805019575
	1/sqrt(3) More...
#define	SINC_SAFETY   1e-5

Macro Definition Documentation

TRUE

#define TRUE   (1==1)

Definition at line 38 of file LISAspecifics.c.

FALSE

#define FALSE   (1==0)

Definition at line 39 of file LISAspecifics.c.

SCALAR

#define SCALAR	(		u,
			v
	)		((u)[0]*(v)[0] + (u)[1]*(v)[1] + (u)[2]*(v)[2])

Simple Euklidean scalar product for two 3-dim vectors in cartesian coords.

Definition at line 43 of file LISAspecifics.c.

SQ

#define SQ

(

x

)

( (x) * (x) )

Definition at line 44 of file LISAspecifics.c.

GPS2REAL8

#define GPS2REAL8

(

gps

)

(1.0 * (gps).gpsSeconds + 1.e-9 * (gps).gpsNanoSeconds )

Definition at line 45 of file LISAspecifics.c.

LAL_SQRT1_3

#define LAL_SQRT1_3   0.5773502691896257645091487805019575

1/sqrt(3)

Definition at line 46 of file LISAspecifics.c.

SINC_SAFETY

#define SINC_SAFETY   1e-5

Definition at line 660 of file LISAspecifics.c.

Function Documentation

XLALgetLISAtwoArmRAAIFO()

int XLALgetLISAtwoArmRAAIFO	(	CmplxDetectorTensor *	detT,
		const DetectorArm *	detArmA,
		const DetectorArm *	detArmB,
		const FreqSkypos_t *	freq_skypos
	)

return a rigid-adiabatic-approximation (RAA) two-arm IFO detector tensor for LISA, given 'armA' and 'armB' This implements LISA RAA-tensor using spacecraft-orbits described by Eq.

(2.1) in LISA-MLCD 'challenge1.pdf' document, see http://astrogravs.nasa.gov/docs/mldc/round1.html

RETURN 0 = OK, -1 = ERROR

Note

: armA=0 means "arm 1" in TDI notation, therefore the enums LISA_ARM1, LISA_ARM2, LISA_ARM3 should be used to avoid confusion.

Parameters

[out]	detT	: two-arm IFO detector-tensor
[in]	detArmA	precomputed detector-arm 'A'
[in]	detArmB	precomputed detector-arm 'B'
[in]	freq_skypos	precomputed frequency and skypos info

Definition at line 585 of file LISAspecifics.c.

safe_sinc()

static REAL4 safe_sinc ( REAL4  x )

static

Unnormalized sinc(x) = sin(x) / x.

Correctly handle the limit x->0 where sinc(x) = 1

Definition at line 665 of file LISAspecifics.c.

XLALisLISAdetector()

BOOLEAN XLALisLISAdetector

(

const LALDetector *

det

)

Return true if 'det' is a LISA LALDetector struct.

Definition at line 65 of file LISAspecifics.c.

XLALregisterLISAdetectors()

int XLALregisterLISAdetectors

(

const CHAR

prefixLetter

)

Set up the LALDetector structs representing LISA X, Y, Z TDI observables.

Detectors will be registered with prefixes beginning with 'prefixLetter'.

Definition at line 75 of file LISAspecifics.c.

XLALprecomputeLISAarms()

int XLALprecomputeLISAarms

(

DetectorState *

detState

)

Precompute the arm-geometry for LISA, which is later used for assembling the RAA detector-tensor (which depends on frequency and skyposition.

Definition at line 150 of file LISAspecifics.c.

XLALgetLISADetectorTensorLWL()

int XLALgetLISADetectorTensorLWL	(	SymmTensor3 *	detT,
		const Detector3Arms	detArms,
		CHAR	channelNum
	)

Parameters

[out]	detT	: LISA LWL detector-tensor
[in]	detArms	precomputed detector-arms
	channelNum	channel-number (as a char) '1', '2', '3' ..

Definition at line 235 of file LISAspecifics.c.

XLALgetLISADetectorTensorRAA()

int XLALgetLISADetectorTensorRAA	(	CmplxDetectorTensor *	detT,
		const Detector3Arms	detArms,
		CHAR	channelNum,
		const FreqSkypos_t *	freq_skypos
	)

Parameters

[out]	detT	: LISA LWL detector-tensor
[in]	detArms	precomputed detector-arms
[in]	channelNum	channel-number (as a char) '1', '2', '3' ..
[in]	freq_skypos	precompute frequency and skypos info

Definition at line 392 of file LISAspecifics.c.