DSP - Task 1 - Filter Design and Digital Filtering in MATLAB

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OVERVIEW:

  1. Design different types of FIR and IIR filters for different frequency responses and 2 different sampling frequencies.
  2. Filtering of the signal and checking of correct band suppression of output signal (see spectra of input and filtered signals).
  3. Discussion on filter design and filtering results.

POINTS TO DISCUSSION:

Comparison of results for different filter design (order, stability, phase characteristics, delay of output, etc. - FIR x IIR - different IIR filters aproximations)

SIGNALS TO PROCESSING:

HELP: (more details in [4] and [5])

GUIDELINES IN DETAILS:

  1. Comparison of the design with same order and different filter types

  2. Design of high-pass, band-pass, and stop-band filters

    Repeat the design of above described filter for high-pass filter 0 - fs/4, band pass filter fs/8 - 3*fs/8, and stop-band filter fs/8 - 3*fs/8.

  3. Comparison of the design with same tolerance field

  4. Design of band-pass filter into telephone band

  5. Filter for removing low frequency noise in speech


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This page was created Thu Oct 19 10:15:10 CEST 2000