Matched filter using FFT

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ALEESHA JOJI
ALEESHA JOJI 2020-6-21
评论： Abdelmoumen Bacetti 2020-8-22
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
  1 个评论
Abdelmoumen Bacetti
Abdelmoumen Bacetti 2020-8-22
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

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回答（1 个）

Raunak Gupta
Raunak Gupta 2020-6-24
Hi,
There is similar question about implementing Matched filter answered here.
https://www.mathworks.com/matlabcentral/answers/4502-matched-filter

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