§Example 2: Consider a two-by-two transfer matrix
A
state-space realization of G can be obtained by using the following MATLAB commands:
>>G11=nd2sys([10,10],[1,0.2,100]);
>>G12=nd2sys(1,[1,1]);
>>G21=nd2sys([1,2],[1,0.1,10]);
>>G22=nd2sys([5,5],[1,5,6]);
>>G=sbs(abv(G11,G21),abv(G12,G22));
Next, we
setup a frequency grid to compute the frequency response of G and the singular values
of G(jw) over a suitable range of frequency.
>>w =
logspace(0,2,200); % 200 points between 1=100 and
100=102;
>>Gf=frsp(G,w); % computing frequency
response;
