Tuesday, 25 April 2017

FIR filter design using windowing method

The aim of the experiment was to design digital filter using windowing method and study the spectrum. The input parameters were passband attenuation(Ap), stopband attenuation(As), passband frequency(Fp), stopband frequency(Fs) and sampling frequency(F). The magnitude and phase spectrum for LPF and BPF using Hanning window were plotted. 
The observed and calculated values of Ap and As were compared. Thus, the values were verified. The phase spectrum was observed to be linear.
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8 comments:

  1. Unknown25 April 2017 at 22:21

    Hanning window provides stop band attenuation of 44db where as Blackman window provides highest attenuation of 74db

    ReplyDelete
  2. Unknown28 April 2017 at 05:01

    Rectangular function is the most easiest window function

    ReplyDelete
    Replies
    1. Unknown28 April 2017 at 05:07

      Rectangular window function is not used due to low As value

      Delete
  3. Unknown28 April 2017 at 05:18

    Though Blackman window is more efficient than other window functions,order increases in it.

    ReplyDelete
  4. Tony28 April 2017 at 05:47

    Window Function is decided by Stopband attenuation.

    ReplyDelete
  5. Akash Bangera28 April 2017 at 05:59

    Blackman window is the best since it is used when the stop band attenuation is highest

    ReplyDelete
  6. Ankesh Patil28 April 2017 at 06:13

    Rectangular window has less value of As i.e. 29

    ReplyDelete
  7. Aditi Kajrekar28 April 2017 at 07:00

    Hanning window provides stop band attenuation of 44db where as Blackman window provides highest attenuation of 74db

    ReplyDelete

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