continuous wavelet transform- modify and reconstruct

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Behrang Hoseini
Behrang Hoseini 2020-4-29
回答： Binaya 2024-8-20
Hi,
I want to use CWT to modify the amplitude of signal in frequency domain (in a specific frequency band) and then reconstruct the signal. I want to do it by changing the wavelet coefficients at that band. Is that the right way?
Thanks in advance for your help.
Best,
Behrang

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回答（1 个）

Binaya
Binaya 2024-8-20
Hi Behrang
Yes, changing the coefficients of the wavelets is the right way for modifying the a signal.
You can follow the below detailed steps to modify the signal:
  1. Use "cwt" function to calculate the continuous wavelet transform of the required signal: https://www.mathworks.com/help/wavelet/ref/cwt.html
  2. Modify the coefficients of the frequencies or wavelets as per your need.
  3. Use "icwt" function to reconstruct the signal by using inverse continuous wavelet transform: https://www.mathworks.com/help/wavelet/ref/icwt.html

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