A General Formulation for Modulated Perfect Reconstruction Filter Banks with Variable System Delay

This paper introduces a new formulation for analysis and design of modulated lter banks. A unique feature of the formulation is that it provides explicit control of the input-to-output system delay. The paper discusses minimum delay lter banks and demonstrates that truly exact reconstruction is possible in this context. The formulation provides a broad range of design exibility within a compact framework and allows for the design of a variety of computationally eecient modulated lter banks with diierent numbers of bands and virtually arbitrary lengths.