Discrete Fourier Transform (DFT) function.

Note: This item is deprecated and will be removed in a future release.

Syntax

y = Dft(vec)

Arguments

Name

Description

vec

A vector of time-domain data.  It can be complex valued.

Output

Name

Description

y

A vector of the DFT.  It is of complex type.  Its length is equal to the input vector.

Example

Given a vector data of a real part of a time-domain signal, a vector of the DFT of the signal is created:

Syntax

y = Dft(data)

Result

y is a complex vector of the DFT of data.  Its length is equal to the least power of two, greater than or equal to the number of elements in the data.

Comments

Dft is a composite of items DftReal and DftImag.

DFT is complex-valued and used to map time-domain data into the frequency domain.

See Also:

DftImag

DftMag

DftPhase

DftReal