#include <das2/dft.h>

Detailed Description

A power spectral density estimator (periodogram)

This is a wrapper around the FFTW (Fastest Fourier Transform in the West) library to handle memory management, normalization and windowing.

Public Member Functions
Das2Psd *	new_Psd (DftPlan pPlan, bool bCenter, const char sWindow)
	Create a new Power Spectral Density Calculator. More...

void	del_Das2Psd (Das2Psd *pThis)
	Free a Power Spectral Density calculator. More...

DasErrCode	Psd_calculate (Das2Psd pThis, const double pReal, const double *pImg)
	Calculate a Power Spectral Density (periodogram) More...

DasErrCode	Psd_calculate_f (Das2Psd pThis, const float pReal, const float *pImg)
	The floating point array input analog of Psd_calaculate() More...

double	Psd_powerRatio (const Das2Psd pThis, double pInput, double *pOutput)
	Provide a comparison of the input power and the output power. More...

const double *	Psd_get (const Das2Psd pThis, size_t pLen)
	Get the amplitude magnitude vector from a calculation. More...

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

Public Member Functions