Design of a Configurable WOLA Filterbank

A configurable WOLA filterbank is proposed in this paper for multi-channel digital signal processing. The WOLA filterbank mainly contains analysis and synthesize filterbank. In this paper, the design and implementation of sub-modules is presented in detail. And some efficient and simplified methods are adopted to reduce the hardware costs and power consumption. Simulation results show that the WOLA filterbank can analysis and reconstruct the wideband signal effectively. There are 267 kgates when the design is synthesized with SIMC90 nm standard cell library. And the power consumption is 1.211 mW at a clock frequency of 5 MHz.