MATLAB Answers

How to control the stopband attenuation of the resample function ?

5 views (last 30 days)
I'm using resample function to upsample my data. I need to increase the stop band attenuation to improve the Adjacent channel power ratio (ACPR) . How can i do that?

  0 Comments

Sign in to comment.

Accepted Answer

Vaishnav Katiyar
Vaishnav Katiyar on 27 Oct 2020
This example shows how to design a minimum-order lowpass FIR filter with a passband frequency of 0.37*pi rad/sample, a stopband frequency of 0.43*pi rad/sample (hence the transition width equals 0.06*pi rad/sample), a passband ripple of 1 dB and a stopband attenuation of 30 dB.
Fpass = 0.37;
Fstop = 0.43;
Ap = 1;
Ast = 30;
d=
designfilt('lowpassfir','PassbandFrequency',Fpass,'StopbandFrequency',Fstop,'PassbandRipple',Ap,'StopbandAttenuation',Ast);
Refer the article below for more details on designing FIR and IIR filters based on frequency response specifications using the designfilt function in the Signal Processing Toolbox® product.

  0 Comments

Sign in to comment.

More Answers (0)

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!