Sunday, 23 April 2017

FIR filter design using frequency sampling method

In the eighth experiment we perform FIR design using frequency sampling method.
Here we design digital filter in scilab.
The output h[n] is obtained by performing inverse-DFT.
As discrete values of the frequency response. it can be considered that the response is sampled, hence the name FSM.
Required data given was cutoff r=frequency and order of the filter.


10 comments:

  1. One among the simplest methods for filter design.

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  2. computational efficiency is increased as signal is decomposed which makes calculation faster

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  3. FSM is simpler because many samples in the input impulse function are zero, which reduces the number of calculatuons

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  4. FSM involves less computation compared to windowing method. I'd prefer this in practical applications.

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