Friday, 22 April 2016

FIR Filter using Windowing method

Depending upon the value of Pass band attenuation, appropriate window functin was chosen from Rectangulaer, Bartlett, Hanning, Hamming, and Blackmann. As stop band attenuation increases, main lobe width increases and side lobe width increases. Phase response varies linearly with frequency, thus no ditortin is observed at the output of the filter. Output is same as input delayed by some constant.

 https://drive.google.com/drive/folders/0BwvLoQVdPTK3REp4cWtnN0VzdDg
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4 comments:

  1. Unknown25 April 2016 at 11:34

    you can add that,
    In window technique we have different window functions, which can be used as per the design specifications of filter.

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  2. Sahil Gujrathi25 April 2016 at 13:02

    The basic idea behind the window design is to choose a proper ideal frequency-selective filter and then to window its impulse response to obtain a linear-phase and causal FIR filter

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  3. Unknown25 April 2016 at 22:45

    Chebyshev filter has ripples in the pass band. As n increases, the ripples also increase.

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  4. Unknown25 April 2016 at 23:49

    Zero crossing was observed in phase plot wherever magnitude was zero in the magnitude response.

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