Comb Filters Depending on applications, comb filters with other types of periodic magnitude responses can be easily generated by appropriately choosing the prototype filter For example, the M-point moving average filter H(z) 2 M(1-z has been used as a prototype Copyright C 2001, S K Mitra6 Copyright © 2001, S. K. Mitra Comb Filters • Depending on applications, comb filters with other types of periodic magnitude responses can be easily generated by appropriately choosing the prototype filter • For example, the M-point moving average filter has been used as a prototype ( ) ( ) 1 1 1 − − − − = M z z M H z