Parallelized IIR filter, digital filter device, parallelized IIR filter design device, parallelized IIR filter design method, parallelized IIR filter manufacturing method

摘要

PROBLEM TO BE SOLVED: To provide a parallelized IIR filter. A parallelized IIR filter 100 by converting a denominator polynomial D (z) and a molecular polynomial N (z) in a transfer function H (z) of an IIR filter into a transfer function based on a parallelized polyphase representation. Includes a parallelized polyphase filter. [Selection diagram] FIG. 7