What is the highest relevant stopband attenuation for a 1-D digital filter?

1. What is maximum stopband attenuation?
2. How do I increase stopband attenuation?
3. What is attenuation in filter?

What is maximum stopband attenuation?

The stopband attenuation is the difference, in decibels, between the lowest gain in the passband and the highest gain in the stopband. Ideally this would be infinite; the higher the better.

How do I increase stopband attenuation?

It is possible to increase the attenuation in the stopband while keeping the same filter order and transition width by the use of weights. Weights are a way of specifying the relative importance of the passband ripple versus the stopband attenuation.

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)