Homework Assignment 6
Due Oct. 8, 1997

1. Problem 5.7 from Orfanidis

2. 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.

3. Problem 5.13 from Orfanidis.

4. Problem 5.19 from Orfanidis. Hint:

                -D
           1 - z    = 0
                k
   
          
                -D         j 2 pi n
               z    = 1 = e
                k