I am designing a low pass filter in matlab to remove the noises shown in the image. The original signal of interest lasts only for about 80 ms and rest of the signal are noises from probe tip.
In matlab, i used the following script. d=fdesign.lowpass('Fp,Fst,Ap,Ast',0.001,0.5,60,1);
But I not getting the effect of removing the noisy signal exactly. I dont understand the parameters 'Fp,Fst,Ap,Ast'. I tried playing with those values, But its not working. What values should i give to these parameters to remove the noise exactly and have only the signal of interest ?