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Hi Pls Help D To I Need This Urgently Accurate Answers Pls And Upvote Guaranteed Pls Solve As Quickly As U Can Thank 1 (41.91 KiB) Viewed 45 times
Hi Pls Help D To I Need This Urgently Accurate Answers Pls And Upvote Guaranteed Pls Solve As Quickly As U Can Thank 2 (42.52 KiB) Viewed 45 times
Q2 (ii) Nth Order Butterworth filter An Nth order Butterworth filter has attenuation 1 |HB(jw) = 11+(:) If N = 2, and we = 0.2 rads? answer the following questions. d) What is the pass-band attenuation (in dB) of the Butterworth filter at Wp = 0.14 rads?? Round your answer to the nearest integer. Submit part 1 mark Unanswered e) What is the attenuation (in dB) of the Butterworth filter at the cut-off frequency we = 0.2 rads-1? Round your answer to the nearest integer Submit part 1 mark Unanswered f) What is the stop-band attenuation (in dB) of the Butterworth filter at we = 4 rads-l?
iii) What is the roll-off in the stopband in dB/decade? Round your answer to the nearest integer. Submit part 1 mark Unanswered h) If the cut-off frequency is we = 0.2 rads-1, for which angular frequency w rads-- is the attenuation-100 dB? Round your answer to 3 significant figures. Submit part 1 mark Unanswered i) An Nth-order Butterworth filter is to be used as an antialiasing filter for audio signals sampled at 88.2 kHz. If the cut-off frequency of the anti-aliasing filter is to be 20 kHz, what is the minimum value for N required to achieve at least -80 dB attenuation at the Nyquist frequency? An integer expected. Hint: you do not need to convert frequency from Hz to rad/s to answer this question. Submit part
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