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 ss2tf et al., and check also Octave Forge.