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Generalized Goertzel algorithm

version 1.1 (3.14 KB) by

Goertzel algorithm generalized to non-integral multiples of fundamental frequency.

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The conventional Goertzel Algorithm can be used to compute individual DFT coefficients. In case we need to compute some values of DTFT (that means, non-integer multiples of the fundamental frequency), slight modification must be done.

There are two files: the conventional and generalized Goertzel algorithm. No toolboxes needed.

The algorithm and its derivation is described in the article accesible at
http://asp.eurasipjournals.com/content/pdf/1687-6180-2012-56.pdf

Comments and Ratings (4)

Eric Sampson

Peter

Peter (view profile)

very good

Hakan

Hakan (view profile)

good

Bill Lu

very useful for detecting frequencies that are not integer multiples of 1/N

Updates

1.1

I updated the link to the PDF. Thanks!

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MATLAB 7.10 (R2010a)

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