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step

System object: dsp.FFT
Package: dsp

Discrete Fourier transform of input

Syntax

Y = step(ft,X)

Description

Note

Starting in R2016b, instead of using the step method to perform the operation defined by the System object™, you can call the object with arguments, as if it were a function. For example, y = step(obj,x) and y = obj(x) perform equivalent operations.

Y = step(ft,X) computes the FFT, Y , of the input X along the first dimension of X. When the FFTLengthSource property is Auto, the length of X along the first dimension must be a positive integer power of two. This length is also the FFT length . When the FFTLengthSource property is Property, the FFTLength property must be a positive integer power of two.

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