Sunday, 23 April 2017

Frequency Sampling method for FIR filter design

Frequency Sampling method is also used to design a FIR filter.
In this method the the frequency response is sampled and the desired transfer function is obtained. The transfer function is a combination of FIR filter and parallel IIR filter. The final output is obtained using IDFT method. The final output is always symmetric about the point N/2. It is the most simplest method when desired frequency response is specified.
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7 comments:

  1. sspassari26 April 2017 at 07:03

    very nice

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  2. Unknown26 April 2017 at 07:50

    This method is computationally fast as compared to windowing method

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  3. Tony26 April 2017 at 07:51

    Implementation on Scilab has made the understanding easy

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  4. shrinish_00126 April 2017 at 07:55

    FSM is used in the cases where desired response in known.

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  5. Unknown26 April 2017 at 10:25

    Very simple method of filter design

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  6. Unknown28 April 2017 at 05:26

    Proper choice of sampling frequency is an important factor in designing filter

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  7. Unknown28 April 2017 at 05:48

    This method is useful for the design of non-prototype filters where the desired magnitude response can take any irregular shape

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