User`s guide

sigma
11-205
You can do this by typing
H = [0 tf([3 0],[1 1 10]) ; tf([1 1],[1 5]) tf(2,[1 6])]
subplot(211)
sigma(H)
subplot(212)
sigma(H,[],2)
Algorithm sigma uses the svd function in MATLAB to compute the singular values of a
complex matrix.
See Also bode Bode plot
evalfr Response at single complex frequency
freqresp Frequency response computation
ltiview LTIsystemviewer
Frequency (rad/sec)
Singular Values (dB)
Singular Values
10
−2
10
−1
10
0
10
1
10
2
−60
−40
−20
0
20
Frequency (rad/sec)
Singular Values (dB)
Singular Values
10
−2
10
−1
10
0
10
1
10
2
−40
−30
−20
−10
0
10
20