I want to deduce the wavelength and amplitude of each trough and crest.

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muhammad Amir 2015-9-16

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https://ww2.mathworks.cn/matlabcentral/answers/243360-i-want-to-deduce-the-wavelength-and-amplitude-of-each-trough-and-crest

i have applied the FFT but it gives me only amplitude on average but i need for the each trough and crest wavelength and amplitude and number of trough in the attached file ( my interest part in the image is pink signals).

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I want to deduce the wavelength and amplitude of each trough and crest.

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I want to deduce the wavelength and amplitude of each trough and crest.

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