I am new to multirate dsp ,I understand that to down sample you need to
have antialias filter bandlimited to Fs/2(Fs output sampling rate)and take
the M (decimation factor)samples and discard M-1 samples. My questions are
1)Is antialias filter itself called decimation filter
2) delay in FIR filter is given as (N-1)/2 (N. no of taps) ,what is the
formula if I decimate by factor M, and Is this formula is applicable to all
kinds of FIR filter (I mean symmetric,antisymmetric ,linear phase etc)
3) If I decimate by two stages by M1,M2 factors ,How to calculate FIR
Thanks in advance
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