FIR Filter Design

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We learned that FIR filter design is done by window method and frequency sampling method.
The Windowing method is used for truncation of the signal with respect to window functions like rectangular, hamming , hanning, bartlett, Blackmann. Frequency sampling method samples the DTFT signal at frequency of (2*pi*k/N). We wrote a script on scilab to design these filters and obtained the graphs.

Comments

  1. utkarsha@tilakMay 15, 2018 at 7:16 AM

    FIR filters are practical filters are causal

    ReplyDelete
    Replies
    1. UnknownMay 15, 2018 at 9:28 PM

      yes because the practical signals are all finite length signals.

      Delete
  2. UnknownMay 15, 2018 at 7:23 AM

    THere are ripples in stop band observed..

    ReplyDelete
    Replies
    1. UnknownMay 15, 2018 at 9:30 PM

      The ripples in stop band are because of the Gibbs phenomenon.

      Delete
  3. MayurLankhande2510May 15, 2018 at 7:24 AM

    FIR filter design methods are explained pointwise and briefly.

    ReplyDelete
  4. Omkar SawantMay 15, 2018 at 9:54 AM

    Poles of FIR filter always lies at the origin.

    ReplyDelete
  5. tilakmunshiMay 15, 2018 at 9:59 AM

    Yeah and this provides good stability to this filters.
    Also , FIR filters gives distortionless output.

    ReplyDelete
    Replies
    1. UnknownMay 15, 2018 at 9:33 PM

      Distortion less output of FIR filters is obtained only if filter is Linear.

      Delete

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