A new scheme for designing IIR filters with finite wordlength coefficients
Zhongqi Jing, Adly T. Fam · IEEE Transactions on Acoustics Speech and Signal Processing · 1986
A scheme for designing IIR digital filters, with specified coefficient wordlengths based on successive digitization and reoptimization, is presented and compared to related approaches via a number of design examples. The ordered digitization of the coefficients based on their sensitivity, with each digitization followed by reoptimization of the remaining coefficients, results in a much reduced computation effort in comparison to related design approaches.