casc - cascade realization of filter from coefficients

Calling Sequence

[cels]=casc(x,z)

Parameters

• x : (4xN)-matrix where each column is a cascade element, the first two column entries being the numerator coefficients and the second two column entries being the denominator coefficients
• z : string representing the cascade variable
• cels : resulting cascade representation

Description

Creates cascade realization of filter from a matrix of coefficients (utility function).

Examples

x=[1,2,3;4,5,6;7,8,9;10,11,12]
cels=casc(x,'z')