Matched filter using FFT

hai

Ive a 2d array of 1536*1 double data, and I need to find the matched filter output with respect to the refference date v_tx of diamension 1536*1. This matched filtering is to be done with the help of FFT function.(I cannot use any in-build matlab functions) thanks in advance.

regards

Aleesha

[Abdelmoumen Bacetti]

Hi

Basicaly, you will need to multiply the FFT of the input signal by the FFT of the reference signal then IFFT the result of the multiplication.

Input ====> FFT ====> X ====> IFFT ====> Output

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FFT

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Reference

Answer 1

[Raunak Gupta]

Hi,

There is similar question about implementing Matched filter answered here.

https://www.mathworks.com/matlabcentral/answers/4502-matched-filter