Friday, 22 April 2016

Chebyshev filter

This was the first experiment performed using Scilab. Digital chebyshev filter was designed using BLT method.
The imput parameters were pass band attenuation(Ap), stop band attenuation(As), pass band frequency(Fp), stop band frequency(Fs) and sampling frequency(F). The observed and theoretical values of Ap and As were compared.
The slight difference in the values were due to variations in constant values and inaccuracies in measurement. More the order of the filter, less will be the difference between observed and theoretical Ap and As values.
Link for the code:
https://drive.google.com/file/d/0B9FCQ_loE3PaQllUV1hlVjY1Mmc/view?usp=sharing
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2 comments:

  1. Unknown25 April 2016 at 08:52

    which filter is better?

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  2. Aishwarya Bannore25 April 2016 at 09:23

    Chebyshev is better because it requires less order for same input parameters as compared to Butterworth filter.

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