Specifications

4 Model Analysis Tools
4-6
–1.7971 – 2.2137i
–0.2629 + 2.7039i
–0.2629 – 2.7039i
zero(h)
ans =
–0.0500 + 2.7382i
–0.0500 – 2.7382i
–2.0000
dcgain(h)
ans =
1
[ninf,fpeak] = norm(h,inf)% peak gain of freq. response
ninf =
1.3402 % peak gain
fpeak =
1.8537 % frequency where gain peaks
These functions also operate on LTI arrays and return arrays. For
example, the poles of a three dimensional LTI array
sysarray are
obtained as follows.
sysarray = tf(rss(2,1,1,3))
Model sysarray(:,:,1,1)
=======================
Transfer function:
-0.6201 s - 1.905
---------------------
s^2 + 5.672 s + 7.405
Model sysarray(:,:,2,1)
=======================
Transfer function:
0.4282 s^2 + 0.3706 s + 0.04264
-------------------------------
s^2 + 1.056 s + 0.1719