Other Relevant Matlab Functions

Related Signal Processing Toolbox functions include

• tf2sos -- Convert digital filter transfer function parameters to second-order sections form. (See §9.2.)

• sos2ss -- Convert second-order filter sections to state-space form.^G.8

• tf2zp -- Convert transfer-function filter parameters to zero-pole-gain form.

• ss2zp -- Convert state-space model to zeros, poles, and a gain.

• zp2ss -- Convert zero-pole-gain filter parameters to state-space form.

In Matlab, say lookfor state-space to find your state-space support utilities (there are many more than listed above). In Octave, say help -i ss2tf and keep reading for more functions (the above list is complete, as of this writing).

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written by Julius Orion Smith III
Julius Smith's background is in electrical engineering (BS Rice 1975, PhD Stanford 1983). He is presently Professor of Music and Associate Professor (by courtesy) of Electrical Engineering at Stanford's Center for Computer Research in Music and Acoustics (CCRMA), teaching courses and pursuing research related to signal processing applied to music and audio systems. See http://ccrma.stanford.edu/~jos/ for details.