Low pass and High Pass filters were designed with the input parameters As ,Ap pass band frequency and stop band frequency and samppling frequency.The pole zero plot was also drawn and it was observed that all the poles lie inside the unit circle indication both the High Pass and Low Pass fiters were stable.It was observed that the butterworth filter is monotonic in it's pass band as well as stop band meaning it does not have any ripples.
https://drive.google.com/file/d/0B9zlXLFfOipjd1Q5UEkyaWtwQnAwVXZyU1l0V0JWRFZ5WGNr/view?usp=sharing
https://drive.google.com/file/d/0B9zlXLFfOipjd1Q5UEkyaWtwQnAwVXZyU1l0V0JWRFZ5WGNr/view?usp=sharing
Precise explanation.
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ReplyDeleteBLT method was used to design filter.
ReplyDeleteOne main disadvantage of the Butterworth filter is that it achieves this pass band flatness at the expense of a wide transition band as the filter changes from the pass band to the stop band. It also has poor phase characteristics.
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