Role of anticausal inverses in multirate filter-banks .I. System-theoretic fundamentals
Role of anticausal inverses in multirate filter-banks .I. System-theoretic fundamentals
In a maximally decimated filter bank with identical decimation ratios for all channels, the perfect reconstructibility property and the nature of reconstruction filters (causality, stability, FIR property, and so on) depend on the properties of the polyphase matrix. Various properties and capabilities of the filter bank depend on the properties …