gauss.h File Reference

#include "cstd.h"
#include "utils.h"

Go to the source code of this file.

Functions
float *	getrick (int *iw, float dt, float fpeak)
	returns array containing Ricker wavelet, symmetric about midpoint, computes length 2*iw+1 to truncate sampling at approximately single precision round-off error (i.e.
float *	getgauss (int *iw, float dt, float fpeak)
	returns array containing Gaussian wavelet, symmetric about midpoint, of length 2*iw+1 to truncate sampling at approximately single precision round-off error (i.e.
ireal *	igetgauss (int *iw, ireal dt, ireal fpeak)
float *	getdgauss (int *iw, float dt, float fpeak)
	returns array containing derivative of Gaussian wavelet, symmetric about midpoint, of length 2*iw+1 to truncate sampling at approximately single precision round-off error (i.e.
ireal *	igetdgauss (int *iw, ireal dt, ireal fpeak)
float	compgauss (float r, float fpeak)
	returns value of gaussian at a point, scaled by -(2 pi^2 fpeak^2)^-1
float	compdgauss (float r, float fpeak)
	returns value of gaussian derivative at a point scaled by -(2 pi^2 fpeak^2)^-1
float	comprick (float r, float fpeak)
	returns value of gaussian 2ndderivative at a point scaled by -(2 pi^2 fpeak^2)^-1 - same as normalized Ricker

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Function Documentation

float* getrick	(	int *	iw,
		float	dt,
		float	fpeak
	)

returns array containing Ricker wavelet, symmetric about midpoint, computes length 2*iw+1 to truncate sampling at approximately single precision round-off error (i.e.

O(10^7)). Scaled to unit amplitude at t=0 (sample iw+1).

float* getgauss	(	int *	iw,
		float	dt,
		float	fpeak
	)

returns array containing Gaussian wavelet, symmetric about midpoint, of length 2*iw+1 to truncate sampling at approximately single precision round-off error (i.e.

O(10^7)). Scaled so that 2nd derivative is Ricker with unit amplitude at t=0 (sample iw+1).

ireal* igetgauss	(	int *	iw,
		ireal	dt,
		ireal	fpeak
	)

float* getdgauss	(	int *	iw,
		float	dt,
		float	fpeak
	)

returns array containing derivative of Gaussian wavelet, symmetric about midpoint, of length 2*iw+1 to truncate sampling at approximately single precision round-off error (i.e.

O(10^7)). Scaled so that 1st derivative is Ricker with unit amplitude at t=0 (sample iw+1).

ireal* igetdgauss	(	int *	iw,
		ireal	dt,
		ireal	fpeak
	)

float compgauss	(	float	r,
		float	fpeak
	)

returns value of gaussian at a point, scaled by -(2 pi^2 fpeak^2)^-1

float compdgauss	(	float	r,
		float	fpeak
	)

returns value of gaussian derivative at a point scaled by -(2 pi^2 fpeak^2)^-1

float comprick	(	float	r,
		float	fpeak
	)

returns value of gaussian 2ndderivative at a point scaled by -(2 pi^2 fpeak^2)^-1 - same as normalized Ricker

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