Sunday, 23 April 2017

Design of FIR using Windowing Method

In this experiment the filter was designed using code written in C language. The input specifications was taken from the user, There were 2 different codes for LPF/HPF and BSF/BPF. Specifications for one of each case taken and the filter was designed.
Different window functions were defined in the code and the function was selected during runtime based on the input specifications. After selection of window function h(n) was calculated. The magnitude and phase spectrum was then plotted in scilab using the obtained values of h(n). The phase spectrum of the filter for the filter was observed to be linear.

9 comments:

  1. Hamming window has least errors

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  2. Its good since the algorithm itself selects the appropriate window function by comparing the given value of As with stored values.

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  3. precise content

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  4. which is a better method? windowing or fsm?

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  5. Selection of windowing function dependence on As i.e. attenuation of stopband.

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  6. Awesome stuff... now I don't have any doubt related to this topic...

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