# Phase Matched Filter? Anyone?

**URL:** <https://discourse.julialang.org/t/phase-matched-filter-anyone/63431>\
**Category:** New to Julia\
**Tags:** package, dsp\
**Created:** [June 23, 2021, 9:49am UTC](https://discourse.julialang.org/t/phase-matched-filter-anyone/63431 "2021-06-23T09:49:37Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![marianoarnaiz](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/marianoarnaiz/32/19377_2.png) [@marianoarnaiz](https://discourse.julialang.org/u/marianoarnaiz)\
**Post date:** [June 23, 2021, 9:49am UTC](https://discourse.julialang.org/t/phase-matched-filter-anyone/63431/1 "2021-06-23T09:49:37Z")

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Hi everyone.  
I am not very good at signals processing. I need to apply something to my signal that is called a phase matched filter. It is suppose to increase Signal to Noise ratio.

Here is an example of what I need:  
[https://www.researchgate.net/publication/258033465\_Phase-matched\_filters\_Application\_to\_the\_study\_of\_Love\_waves](https://www.researchgate.net/publication/258033465_Phase-matched_filters_Application_to_the_study_of_Love_waves)

Any one know if this is implemented in any Julia package?

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**Author:** ![rafael.guerra](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/rafael.guerra/32/216610_2.png) [@rafael.guerra](https://discourse.julialang.org/u/rafael.guerra)\
**Post date:** [June 23, 2021, 11:39am UTC](https://discourse.julialang.org/t/phase-matched-filter-anyone/63431/2 "2021-06-23T11:39:51Z")

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There is a Matlab implementation of that very same reference in [MatSeis](https://www.sandia.gov/MatSeis/). Look for the PhaseMatch tool.

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**Author:** ![marianoarnaiz](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/marianoarnaiz/32/19377_2.png) [@marianoarnaiz](https://discourse.julialang.org/u/marianoarnaiz)\
**Post date:** [June 23, 2021, 11:47am UTC](https://discourse.julialang.org/t/phase-matched-filter-anyone/63431/3 "2021-06-23T11:47:52Z")

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> [@rafael.guerra](#):
>
> MatSeis

Thanks @rafael.guerra I will check it out!