d = fdesign.lo​wpass('Fp,​Fst,Ap,Ast​',1,3,0.5,​40,60);

d = fdesign.lowpass('Fp,Fst,Ap,Ast',1,3,0.5,40,60);

sir, please tell me what is 1,3,0.5,40,60 im assuming that here 60 is sampling frequency please describe other parameters

Answer 1

[Wayne King]

 d = fdesign.lowpass('Fp,Fst,Ap,Ast',1,3,0.5,40,60);

1. 1 is the passband frequency
2. 3 is the stopband frequency so the region between 1 and 3 Hz is a transition region
3. 0.5 is the passband ripple in dB
4. 40 is the amount of stopband attentuation you want in dB
5. 60 is the sampling frequency

[nam bui]

Hello,

how can you apply a cut off frequency with this command?

d = fdesign.lowpass('Fp,Fst,Ap,Ast',1,3,0.5,40,60);

Answer 2

[manikanta dachepalli]

how to find pass band ripple