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Sine wave change zero crossing and increase amplification

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David Jones
David Jones 2020년 9월 7일
댓글: Star Strider 2020년 9월 10일
Hi
I have attached a picture of a sine wave, can it be modified ie all centred around zero, all peaks and troughs the same size?
Any help would be appreciated.
David
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Image Analyst
Image Analyst 2020년 9월 7일
Please attach your data in a .mat file if you want people to try anything to help you.

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Star Strider
Star Strider 2020년 9월 7일
First, use the fft function to do a Fourier transform to see what the signal frequency components are.
After that, it should be straightforward to design a highpass filter to eliminate both the D-C offset and baseline drift, so the result will be close to what you want.
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Star Strider
Star Strider 2020년 9월 10일
As always, my pleasure!

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