signal.Dft.Function.dftSingle

dsp-collection / signal/Dft / dftSingle

Function: dftSingle()

function dftSingle(
   x, 
   relativeFrequency, 
   direction): MutableComplex;

Defined in: signal/Dft.ts:61

Computes the DFT on an array of complex numbers for a single frequency.

This is a reference implementation without any optimization. It's simple to understand, but slow.

Parameters

x

ComplexArray

The complex input values.

relativeFrequency

number

A frequency relative to x.length.

direction

boolean

true for DFT (forward DFT), false for iDFT (inverse DFT).

Returns

MutableComplex

A complex number that corresponds to the amplitude and phase of the frequency component.