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gaus1 CWT implementation? #11

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ashayk opened this issue Nov 3, 2018 · 4 comments
Open

gaus1 CWT implementation? #11

ashayk opened this issue Nov 3, 2018 · 4 comments

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@ashayk
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ashayk commented Nov 3, 2018

Hi Rafat,

I was wondering if there is a gaus1 CWT implementation available in wavelib? I'm assuming gaus2 is DOG with param = 2, but I'm also searching for a gaus1 CWT implementation. Perhaps I am missing something?

Any help much appreciated.

Thanks,

--Alex
@rafat
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rafat commented Nov 5, 2018

DOG with param=2 is the Mexican Hat Wavelet. I think you may want to try DOG with param =1. More info here http://atoc.colorado.edu/research/wavelets/bams_79_01_0061.pdf Page 65.

@ashayk
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ashayk commented Nov 5, 2018

Thanks Rafat,

The docs say param must be a positive even integer for DOG and this is consistent with other implementations (Matlab). I suppose I can try with param = 1, but was hoping you had some ideas.

Thanks.

--Alex

@rafat
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rafat commented Nov 5, 2018

I haven't looked at the code in quite some time but I believe the algorithm should work for positive integers and not just even ones. Can you post a link to the matlab page so I can take a look ?

@ashayk
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ashayk commented Dec 22, 2018

Sorry for the late reply. Here it is...
https://au.mathworks.com/help/wavelet/ref/cwtft.html

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@ashayk @rafat