Implementation of fractional delay filter from scratch in matlab

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Camille Dingam 2022-10-8

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评论： Camille Dingam 2022-10-17

Hello, below is the implementation of fractional delay filter using lagrange. Can anyone help to find the code from scratch of this function. Or anyone who has its C version can recommend to me. Thank you very much

orderfracfilter=4;

d = fdesign.fracdelay(binshift-floor(binshift),'N',orderfracfilter);

secondOrderFrac = design(d,'lagrange','filterstructure','farrowfd');

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Answer 1

Chunru 2022-10-8

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https://ww2.mathworks.cn/matlabcentral/answers/1820065-implementation-of-fractional-delay-filter-from-scratch-in-matlab#answer_1069415

If you are looking for source code of fractional delay, check out this and its accompanying codes:

T. I. Laakso, V. Valimaki, M. Karjalainen and U. K. Laine, "Splitting the unit delay [FIR/all pass filters design]," in IEEE Signal Processing Magazine, vol. 13, no. 1, pp. 30-60, Jan. 1996, doi: 10.1109/79.482137.