The estimated order of the given digital multiband filter using a Hann window \(0.99 \le \left| {H\left( {{e^{jw}}} \right)} \right| \le 1.01,0 \le \omega \le 0.3\pi \)
\(\left| {H\left( {{e^{jw}}} \right)} \right| \le 0.01,0.35\pi \le \omega \le 0.55\pi ;0.49 \le \left| {H\left( {{e^{jw}}} \right)} \right| \le 0.51,0.6\pi \le \omega \le \pi~\)is:
1
120
2
124
3
128
4
45