Transmultiplexer Design Using All-Pass Filters
Rashid Ansari, B. Liu · IEEE Transactions on Communications · 1982
A new scheme for a transmultiplexer is described. Using the polyphase network approach a filter bank composed of only all-pass digital filter sections was designed. The use of all-pass filters as basic building blocks is shown to provide a transmultiplexer structure that has low computational requirements, low quantization noise, and high modularity.