C# Класс Accord.Math.FourierTransform

Fourier transformation.

The class implements one dimensional and two dimensional Discrete and Fast Fourier Transformation.

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Открытые методы

Метод	Описание
DFT ( Complex data, Direction direction ) : void	One dimensional Discrete Fourier Transform.
DFT2 ( Complex data, Direction direction ) : void	Two dimensional Discrete Fourier Transform.
FFT ( Complex data, Direction direction ) : void	One dimensional Fast Fourier Transform. The method accepts data array of 2ⁿ size only, where n may vary in the [1, 14] range.
FFT2 ( Complex data, Direction direction ) : void	Two dimensional Fast Fourier Transform. The method accepts data array of 2ⁿ size only in each dimension, where n may vary in the [1, 14] range. For example, 16x16 array is valid, but 15x15 is not.

Приватные методы

Метод	Описание
GetComplexRotation ( int numberOfBits, Direction direction ) : Complex[]
GetReversedBits ( int numberOfBits ) : int[]
ReorderData ( Complex data ) : void

Описание методов

DFT() публичный статический Метод

One dimensional Discrete Fourier Transform.

public static DFT ( Complex data, Direction direction ) : void
data	Complex	Data to transform.
direction	Direction	Transformation direction.
Результат	void

DFT2() публичный статический Метод

Two dimensional Discrete Fourier Transform.

public static DFT2 ( Complex data, Direction direction ) : void
data	Complex	Data to transform.
direction	Direction	Transformation direction.
Результат	void

FFT() публичный статический Метод

One dimensional Fast Fourier Transform.

The method accepts data array of 2ⁿ size only, where n may vary in the [1, 14] range.

Incorrect data length.

public static FFT ( Complex data, Direction direction ) : void
data	Complex	Data to transform.
direction	Direction	Transformation direction.
Результат	void

FFT2() публичный статический Метод

Two dimensional Fast Fourier Transform.

The method accepts data array of 2ⁿ size only in each dimension, where n may vary in the [1, 14] range. For example, 16x16 array is valid, but 15x15 is not.

Incorrect data length.

public static FFT2 ( Complex data, Direction direction ) : void
data	Complex	Data to transform.
direction	Direction	Transformation direction.
Результат	void