Signal Processing Toolbox 6.12

Digital Filter Design Methods

The Signal Processing Toolbox features a full suite of design methods for finite impulse response (FIR) and infinite impulse response (IIR) digital filters. These methods support the rapid design and evaluation of lowpass, highpass, bandpass, bandstop, and multiband filters, such as Butterworth, Chebyshev, elliptic, Yule-Walker, window-based, least squares, and Parks-McClellan (real and complex). Available filter structures include the direct forms I and II, lattice, lattice-ladder, and second-order sections.