Linear Phase FIR Filter Design using Window function

The aim of the experiment was to design linear phase FIR (Finite Impulse Response) filter using window function.In this experiment, we have used hamming window function to design Low pass filter (LPF) and high-pass fiter(HPF)  Bandpass/band stop filter. We have plotted magnitude as well as phase response.
There are  different types of windowing functions Rectangular, Bartlett, Hamming, Hanning, and Blackman.The specifications of As, Ap, stop band frequency, passband frequency, and sampling frequency was taken from the user.It is observed that as the order of the filter increases the number of lobes in frequency response increase.The attenuation depends upon the type of window used. 
The phase response of the filter is linearly varying with frequency and no distortion is observed in the output.

Comments

  1. $oM€$h25 April 2017 at 23:30

    Well explained

    ReplyDelete
    Replies
    1. Unknown3 May 2017 at 08:28

      Thank you Read and do comment on my blogs

      Delete
  2. Amol28 April 2017 at 02:33

    Rectangular window is not generally preferred.

    ReplyDelete
  3. Unknown28 April 2017 at 02:50

    there are some of window function are hanning,hamming,blackman,bartlett

    ReplyDelete
  4. Unknown28 April 2017 at 04:57

    Windowed sinc function

    ReplyDelete
  5. Aniket kharche28 April 2017 at 09:50

    FIR filters provides good stability

    ReplyDelete
    Replies
    1. Unknown3 May 2017 at 08:30

      in comparison IIR filters are less stable

      Delete

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