## EE 451

**Homework Assignment 6 **

Due Oct. 9, 1996

- Problem 5.7 from Orfanidis
- Problem 5.8 from Orfanidis. For (a) determine all possible
*z*-transforms, sketch their ROCs, and discuss their stability and
causality. For (b) and (c), determine only the causal z-transforms,
sketch their ROCs, and discuss their stability. You may use MATLAB to do the
partial fraction expansions.
- Problem 5.13 from Orfanidis.
- Problem 5.19 from Orfanidis. Hint:
-D
1 - z = 0
k
-D j 2 pi n
z = 1 = e
k

*
Bill Rison,
<rison@ee.nmt.edu >
*