§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 >>w =
logspace(0,2,200); % 200 points between 1=100 and
100=102;
w >>Gf=frsp(G,w); % computing frequency
response;