To use it we put t h e transfer function in the forrii so that the numerator polyriomial 16.15 16.16.
Trang 116.2 Causal Stable LTI-Systems 39 1
t ,
I
t
I
A
Figure 16.2: Pole-zero plots for stalile and unstable systems
For continuous systems we will describe Hurwitz’s stability criteria It does not
irivolvr searching for zeros, arid directly tises t h e cocKicients of the <lc>nominat,or
~ ? o l ~ i ~ o ~ i i i a l i f i the trassfcr function
To use it we put t h e transfer function in the forrii
so that the numerator polyriomial
(16.15)
(16.16)