dftmx (MathScript RT Module Function)

LabVIEW 2012 MathScript RT模块帮助

版本日期:June 2012

产品编号:373123C-0118

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(仅限Windows)

Owning Class: transforms

Requires: MathScript RT Module

Syntax

b = dftmx(a)

Legacy Name: dftmtx

Description

Computes the discrete Fourier transform matrix.

Examples

Inputs

Name Description
a Specifies the order of the matrix. a is a positive integer.

Outputs

Name Description
b Returns the discrete Fourier transform matrix. b is a complex matrix of values around the unit-circle whose inner product with a column vector of length a yields the discrete Fourier transform of the vector.

Details

The following table lists the support characteristics of this function.

Supported in the LabVIEW Run-Time Engine Yes
Supported on RT targets Yes
Suitable for bounded execution times on RT Not characterized

Examples

a = (1:5)';
f1 = fft(a);
f2 = dftmx(length(a))*a

Related Topics

fft

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