Causal IIR perfect reconstruction subband coding
S. Basu, C.-H. Chiang, Han Mook Choi · 1993 IEEE International Symposium on Circuits and Systems · 2002
A class of perfect reconstruction (PR) subband coding schemes is proposed. It uses a bank of causal stable recursive filters both at the analysis and synthesis ends. A general method of parametrizing all causal stable infinite impulse response (IIR) perfect reconstruction filters is given. A complete description of the entire class of linear phase (unstable) IIR subband coding schemes is provided.>