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Design a linear phase FIR low pass filter of length 7 and cutoff frequency | rad | sec. Using hamming window.
1 Answer
written 5.6 years ago by | • modified 5.6 years ago |
Solution:
Given: M = 7
w−c=|rad|sec
Step 1: Obtain desired T.F.Hd(w)
α=m−12
α=7−12=3
∴Hd(ω)={1ej3ω0
0≤|ω|≤1 |ω|≥1
Step 2: Obtain hd(n)
hd(n)=12π∫π−πHd(ejw)ejωndω
$=\frac{1}{2 \pi} \int_{-1}^{1} 1=e^{-j …