Howtosignalprocessing
Passband attenuation refers to the maximum signal loss within the passband of the filter which should ideally be zero; i.e., pass band shall not attenuate the signal it passes; it's a unit gain region.
- What is passband ripple and passband attenuation?
- What is attenuation in filter?
- Is ripple and attenuation same?
What is passband ripple and passband attenuation?
So the passband ripple is the amount of variation in the amplitude, within the designated passband of the filter, and stop band attenuation is the minimum attenuation level with the designated rejection band of the filter.
What is attenuation in filter?
Attenuation – an amplitude loss, usually measured in dB, incurred by a signal after passing through a digital filter. Filter attenuation is the ratio, at a given frequency, of the signal amplitude at the output of the filter over the signal amplitude at the input of the filter, defined as. (F-1)
Is ripple and attenuation same?
the ripple is a certain amount of amplification or attenuation tolerated in the pass band of the filter. So it depends if those effects are critical for your application or not. if you are doing a FFT and the amplitude of the spectrum is key, then a low or no ripple low pass filter is required.
