Detailed Description

Quadratic fit.

Fit a quadratic function to the absolute value of the data. Report the sample index of the vertex if the vertex is a maximum. Note that this is not actually an interpolant because it is not guaranteed to agree with the input data points, and that it always sets *ymax = data[0].

Prototypes
QuadraticFitTriggerInterpolant *	XLALCreateQuadraticFitTriggerInterpolant (unsigned int window)
	Constructor. More...

void	XLALDestroyQuadraticFitTriggerInterpolant (QuadraticFitTriggerInterpolant *)
	Destructor. More...

int	XLALCOMPLEX16ApplyQuadraticFitTriggerInterpolant (QuadraticFitTriggerInterpolant interp, double tmax, COMPLEX16 ymax, const COMPLEX16 y)
	Perform interpolation using the allocated workspace. More...

int	XLALCOMPLEX8ApplyQuadraticFitTriggerInterpolant (QuadraticFitTriggerInterpolant interp, double tmax, COMPLEX8 ymax, const COMPLEX8 y)

int	XLALREAL8ApplyQuadraticFitTriggerInterpolant (QuadraticFitTriggerInterpolant interp, double tmax, REAL8 ymax, const REAL8 y)

int	XLALREAL4ApplyQuadraticFitTriggerInterpolant (QuadraticFitTriggerInterpolant interp, double tmax, REAL4 ymax, const REAL4 y)

Function Documentation

◆ XLALCreateQuadraticFitTriggerInterpolant()

QuadraticFitTriggerInterpolant* XLALCreateQuadraticFitTriggerInterpolant ( unsigned int window )

Constructor.

Allocate a new interpolation workspace and return a pointer to it, or NULL if an error occurs.

Definition at line 652 of file TriggerInterpolation.c.

◆ XLALDestroyQuadraticFitTriggerInterpolant()

void XLALDestroyQuadraticFitTriggerInterpolant ( QuadraticFitTriggerInterpolant * interp )

Destructor.

If the workspace is non-NULL, deallocate it.

Definition at line 702 of file TriggerInterpolation.c.

◆ XLALCOMPLEX16ApplyQuadraticFitTriggerInterpolant()

int XLALCOMPLEX16ApplyQuadraticFitTriggerInterpolant	(	QuadraticFitTriggerInterpolant *	interp,
		double *	tmax,
		COMPLEX16 *	ymax,
		const COMPLEX16 *	y
	)

Perform interpolation using the allocated workspace.

Perform interpolation around the matched-filter output data pointed to by y. There should exist window samples before and window samples after this pointer.

On success, set *tmax to the interpolated time, *ymax to the complex interpolated signal, and return 0. On failure, return a non-zero GSL error code.

Definition at line 721 of file TriggerInterpolation.c.

◆ XLALCOMPLEX8ApplyQuadraticFitTriggerInterpolant()

int XLALCOMPLEX8ApplyQuadraticFitTriggerInterpolant	(	QuadraticFitTriggerInterpolant *	interp,
		double *	tmax,
		COMPLEX8 *	ymax,
		const COMPLEX8 *	y
	)

Definition at line 754 of file TriggerInterpolation.c.

◆ XLALREAL8ApplyQuadraticFitTriggerInterpolant()

int XLALREAL8ApplyQuadraticFitTriggerInterpolant	(	QuadraticFitTriggerInterpolant *	interp,
		double *	tmax,
		REAL8 *	ymax,
		const REAL8 *	y
	)

Definition at line 766 of file TriggerInterpolation.c.

◆ XLALREAL4ApplyQuadraticFitTriggerInterpolant()

int XLALREAL4ApplyQuadraticFitTriggerInterpolant	(	QuadraticFitTriggerInterpolant *	interp,
		double *	tmax,
		REAL4 *	ymax,
		const REAL4 *	y
	)

Definition at line 778 of file TriggerInterpolation.c.