[Ece438] Fwd: Questions about HW#5 of ECE438

[Geoffrey A. Williamson]

>Would you mind giving me a detailed explain on Problem 5.2? I do not 
>understand 5.2 (c) and 5.2(f).
>
>Is it right that:
>5.2 (c) has 2 poles at origin and 2 poles on Img axis close to the origin ?
>
>5.2 (f) has 2 poles on Img axis close to origin, or at the origin ?

As mentioned in the problem statement, 5.2(c) has 2 poles at s=0 (plus the 
zero on the negative real axis).

For 5.2(f), assume that there is one pole at s=0.  The other singularities 
are: a positive real axis pole, a negative real axis zero, a complex 
conjugate LHP pole pair.  (4 poles total, and one zero).


--
Geoffrey A. Williamson, Ph.D.
Associate Professor
Department of Electrical and Computer Engineering
Illinois Institute of Technology
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