cell2sos

Parameters

Description

s=cell2sos(c) converts a a cell array c = { {B1},{A1}, {B2},{A2}, ... {BL},{AL}} to an L-by-6 second-order-section matrix s given by: s = [B1 A1 B2 A2 ... BL AL] numerator vector Bi and denominator vector Ai contains the coefficients of a linear or quadratic polynomial. If the polynomial is linear, the coefficients zero-padded on the right. [s,g]=cell2sos(c) estimates the gain from the leading term of the cell array c={ {[g1,g2]},{B1},{A1}, {B2},{A2}, ... {BL},{AL}} to give g=g1/g2 as the gain Example c=cell(1,5);

c(1,1).entries=[2, 1];

c(1,2).entries=rand(1,3);

c(1,3).entries=rand(1,3);

c(1,4).entries=rand(1,3);

c(1,5).entries=rand(1,3);

c = column 1 to 3

![2,1] [0.2113249,0.7560439,0.0002211] [0.3303271,0.6653811,0.6283918] !

column 4 to 5

![0.8497452,0.6857310,0.8782165] [0.0683740,0.5608486,0.6623569] ! [s,g]=cell2sos(c); s =

column 1 to 5

0.2113249 0.7560439 0.0002211 0.3303271 0.6653811 0.8497452 0.6857310 0.8782165 0.0683740 0.5608486

column 6

0.6283918 0.6623569

g =

2. Author Ankur Mallick