DoubleComplexBackward1DFFTFFT(DoubleComplex, Int32, DoubleComplex, Int32) Method

Computes the backward FFT of vin and places the result in vout, where vin and vout contain offtset signal data, vinoffset, voutoffset, respectively, from the [0] element.

Namespace: CenterSpace.NMath.Core
Assembly: NMath (in NMath.dll) Version: 7.4

Syntax

C++

Copy

public void FFT(
	DoubleComplex[] vin,
	int vinoffset,
	ref DoubleComplex[] vout,
	int voutoffset
)

Public Sub FFT ( 
	vin As DoubleComplex(),
	vinoffset As Integer,
	ByRef vout As DoubleComplex(),
	voutoffset As Integer
)

public:
void FFT(
	array<DoubleComplex>^ vin, 
	int vinoffset, 
	array<DoubleComplex>^% vout, 
	int voutoffset
)

member FFT : 
        vin : DoubleComplex[] * 
        vinoffset : int * 
        vout : DoubleComplex[] byref * 
        voutoffset : int -> unit

Parameters

vin DoubleComplex: The signal data.
vinoffset Int32: Offset to the start of the signal data.
vout DoubleComplex: The FFT of vin.
voutoffset Int32: Offset to the start of the FFT result.

Exceptions

Exception	Condition
MismatchedSizeException	Thrown when the signal data is shorter than this DoubleComplexBackward1DFFT instance.
InvalidArgumentException	Thrown if the output array, vout is not large enough to contain the resultant FFT.

Remarks

For example, if vinoffset = 2, the FFT will start computing with the vin[2] data element of vin, and end at vin[2+Length-1].

Reference

DoubleComplexBackward1DFFT Class

FFT Overload

CenterSpace.NMath.Core Namespace