How to use a matched filter to find a single in an array of data?

Question

Windell 2018-4-5

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/392933-how-to-use-a-matched-filter-to-find-a-single-in-an-array-of-data

回答： Honglei Chen 2018-4-5

Hello,

I would like to use a matched filter to find a signal in an array of data and report back the indices of the signal. I have a pretty accurate template of the data. I know that this is a pretty trivial thing to do, but I haven't quite found what I need online. Maybe I'm looking in the wrong places?

thanks, windell

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Answer 1

Honglei Chen 2018-4-5

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/392933-how-to-use-a-matched-filter-to-find-a-single-in-an-array-of-data#answer_313649

Here is some relevant information

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

Alternatively, you can also use xcorr to achieve the same. Just find the indices for the peaks. You can find relevant examples here https://www.mathworks.com/help/signal/examples/measuring-signal-similarities.html

HTH