Design and implementation of reversible integer quaternionic paraunitary filter banks on adder-based distributed arithmetic

摘要

This paper presents a design method of reversible integer quaternionic paraunitary filter banks (Int-Q-PUFB) using the adder-based distributed arithmetic (DA_Σ) for implementation multiplier block-lifting structure modules. The proposed quaternion multiplier (Q-MUL) and 8-channel Int-Q-PUFB processors are implemented on the FPGA Xilinx Zynq 7010. The total magnitude response of analysis-synthesis system based on the given Int-Q-PUFB shows that the 8-channel 8 × 24 Int-Q-PUFB is perfect reconstruction filter bank for finite precision. Compared to known solutions of Int-Q-PUFB using block-lifting structure based on the CORDIC devices and ROM-based distributed arithmetic the given DA_Σ-based Int-Q-PUFB have more less implementation complexity and latency.