jass.generators
Class FFT

java.lang.Object
  jass.generators.FFT

public class FFT
extends java.lang.Object

Field Summary

int

bits

Constructor Summary

FFT(int bits)
FFT class constructor Initializes code for doing a fast Fourier transform

Method Summary

void	doFFT(double[] xr, double[] xi, boolean invFlag) A fast Fourier transform routine
static void	main(java.lang.String[] argv)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

bits

public int bits

Constructor Detail

FFT

public FFT(int bits)

FFT class constructor Initializes code for doing a fast Fourier transform

Parameters:

int - bits is a power of two such that 2^b is the number of samples.

Method Detail

main

public static void main(java.lang.String[] argv)

doFFT

public void doFFT(double[] xr,
                  double[] xi,
                  boolean invFlag)

A fast Fourier transform routine

Parameters:

double - [] xr is the real part of the data to be transformed

double - [] xi is the imaginary part of the data to be transformed (normally zero unless inverse transofrm is effect).

boolean - invFlag which is true if inverse transform is being applied. false for a forward transform.