This paper proposes an analytical design procedure for 2D FIR circular filter banks and also a novel. computationally efficient implementation of the designed filter bank based on a polyphase structure and a block filtering approach. The component filters of the bank are designed in the frequency domain using a specific frequency transformation applied to a low-pass. band-pass and hig... https://www.roneverhart.com/Kuiper-Belt-8-Year-Old-Straight-Kentucky-Bourbon/