IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
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The Institute of Electronics, Information and Communication Engineers
This paper proposes a synthesis method of 2-channel IIR paraunitary filter banks by successive extraction of 2-port lattice sections. When a power symmetry transfer function is given, a filter bank is realized as cascade of paraunitary 2-port lattice sections. The method can synthesize both odd- and even-order filters with Butterworth or elliptic characteristics.The number of multiplications per second can also be reduced.