We performed design of Low Pass and High Pass Butterworth Filter and observed its Magnitude plots using Scilab. We specified the stop band and pass band attenuation, stop band and pass band frequencies and sampling frequency in each case. Order can be increased for greater accuracy. All poles in both HPF and LPF Butterworth Filter lie inside the unit circle. So both filters are stable.
Butterworth Filter : https://drive.google.com/open?id=0BwzFGc0wvjNvMGYxTG42aGRoTU0
Butterworth Filter : https://drive.google.com/open?id=0BwzFGc0wvjNvMGYxTG42aGRoTU0
Analog Butterworth LPF has only poles and no zeros.
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ReplyDeleteNo. Higher the order more is the hardware requirement.
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