stop band ripples vs stop band attenuation?

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ABTJ
ABTJ on 11 Jul 2020
Answered: Star Strider on 11 Jul 2020
What is difference between stop band ripples and stop band attenuation?Please show/explain with matlab plot

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Accepted Answer

Star Strider
Star Strider on 11 Jul 2020
For all intents and purposes, they are the same thing. In filters with stopband ripples, that parameter sets the stopband attenuation as well as the magnitude of ths stopband ripples. For other filers (e.g. Butterworth), it only specifies the stopband attenuation.

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