Viswanadha Reddy P *, Anamitra Makur #

* General Electric, Bangalore, India
# Nanyang Technological University, Singapore

Abstract:
In this work, the problem of design of M channel IIR causal
stable perfect reconstruction filter banks is addressed and
a design approach based on the minimal factorization of
the state space form of the polyphase matrix are presented
based on the concept of factorization of rational matrix func­
tions. The analysis and synthesis polyphase matrices are
constrained to be minimal. Simulation results are presented
for 3 channel and 4 channel cases.