New framework for modulated perfect reconstruction filter banks

A new formulation for the analysis and design of modulated filter banks is introduced in this paper. The formulation provides a broad range of design flexibility within a compact framework and allows for the design of a variety of computationally efficient modulated filter banks with different numbers of bands and virtually arbitrary lengths. A unique feature of the formulation is that it provides explicit control of the input-to-output system delay in conjunction with perfect reconstruction, Design examples are given to illustrate the methodology.