about High pass and low pass filter

how to design high pass IIR filter and low pass Fir signal using window method(using conv) to remove one of signal from sine wave of 50hz and 10hz

Answer 1

[Youssef Khmou]

The syntax for designing low pass filters is :

 b = fir1(n,Wn,'ftype',window);

n is the number of coefficients, Wn is the cut-off frequency ( 0<=Wn<=1), 'ftype', 'ftype' accepts parameters 'high','stop','DC-1' and 'DC-0'. If the 'windows' parameter is not specified , then Hamming windows is the default option.