public class FFT extends java.lang.Object
Modifier and Type | Field and Description |
---|---|
private static int |
FFTBINS |
private static double[] |
fftComplex |
private static double[] |
fftMagnitude |
private static double[] |
fftReal |
Modifier | Constructor and Description |
---|---|
private |
FFT() |
Modifier and Type | Method and Description |
---|---|
static int |
calculateFFT(double[] inputArray) |
private static double |
complexAbs(double realValue,
double imaginaryValue) |
private static int |
dfft()
A Duhamel-Hollman split-radix dif FFT.
|
private static int FFTBINS
private static double[] fftReal
private static double[] fftComplex
private static double[] fftMagnitude
private FFT()
private static int dfft()
<= 0
are errors, while anything > 0
is ok.private static double complexAbs(double realValue, double imaginaryValue)
public static int calculateFFT(double[] inputArray)