Tuesday, 25 April 2017

Butterworth Filter

In this experiment we designed a digital filter from analog filter. The input specifications that were given are passband attenuation, stopband attenuation, passband frequency, stopband frequency and sampling frequency. Scilab software was used to code and observe the output plot with frequency on x axis and attenuation (in db) on Y axis.From the pole zero plot observed i we saw that in case of digital LPF ,poles lie inside the unit circle, thus the digital filter was stable in nature.
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6 comments:

  1. Unknown26 April 2017 at 00:38

    Analog Butterworth LPF has only poles and no zeros.

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  2. Just DSPP Things26 April 2017 at 00:42

    Butterworth filters generally have higher order

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  3. Neha26 April 2017 at 20:28

    Butterworth filters do not have ripples in passband as well as stopband.

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  4. Unknown28 April 2017 at 03:53

    Group delay largely frequency-dependent

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  5. AjinkyaYadav28 April 2017 at 06:43

    It is also referred to as a maximally flat magnitude filter

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  6. Unknown28 April 2017 at 07:09

    Butterworth filters has no ripples

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