Question: 8 . 4 . Consider the normalized lowpass filter with a cutoff frequency of 1 r a d ? sec: H P ( s )

8.4. Consider the normalized lowpass filter with a cutoff frequency of 1rad? sec:
HP(s)=1s+1
a. Use Hp(s) and the BLT to design a corresponding IIR digital notch (bandstop) filter with a lower cutoff frequency of 20 Hz , an upper cutoff frequency of 40 Hz , and a sampling rate of 120 Hz .
8.4. Consider the normalized lowpass filter with a cutoff frequency of 1rad? sec:
HP(s)=1s+1
a. Use Hp(s) and the BLT to design a corresponding IIR digital notch (bandstop) filter with a lower cutoff frequency of 20 Hz , an upper cutoff frequency of 40 Hz , and a sampling rate of 120 Hz .
8 . 4 . Consider the normalized lowpass filter

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