DSP Blockset

Frequency and Magnitude Parameter Overview.   All of the special IIR and FIR blocks let you design filters with arbitrary magnitude responses. The magnitude response can include multiple stopbands, passbands, and transition regions. You specify the desired frequency response using the blocks' Band edge frequency vector and Magnitudes at these frequencies or Gains at these frequencies parameters. These parameters specify the range and magnitude, respectively, of the frequency bands that make up the filter's frequency response.

Designing Discrete-Time Special IIR and FIR Filters

Frequency and Magnitude Parameters: Yule-Walker IIR Filter Design