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java.lang.Objectca.uol.aig.fftpack.RealDoubleFFT_Mixed
ca.uol.aig.fftpack.RealDoubleFFT_Even_Odd
ca.uol.aig.fftpack.RealDoubleFFT_Odd_Odd
sine FFT transform with odd wave numbers.
| Field Summary |
| Fields inherited from class ca.uol.aig.fftpack.RealDoubleFFT_Even_Odd |
norm_factor |
| Constructor Summary | |
RealDoubleFFT_Odd_Odd(int n)
Construct a wavenumber table with size n. |
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| Method Summary | |
void |
bt(double[] x)
Backward FFT transform of quarter wave data. |
void |
ft(double[] x)
Forward FFT transform of quarter wave data. |
| Methods inherited from class java.lang.Object |
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
public RealDoubleFFT_Odd_Odd(int n)
n - the size of a real data sequence. When n is a multiplication of small
numbers (4, 2, 3, 5), this FFT transform is very efficient.| Method Detail |
public void ft(double[] x)
ft in class RealDoubleFFT_Even_Oddx - an array which contains the sequence to be transformed. After FFT,
x contains the transform coeffients.public void bt(double[] x)
bt in class RealDoubleFFT_Even_Oddx - an array which contains the sequence to be tranformed. After FFT, x contains
the transform coeffients.
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