Ag. Dempster et Md. Macleod, IIR DIGITAL-FILTER DESIGN USING MINIMUM ADDER MULTIPLIER BLOCKS, IEEE transactions on circuits and systems. 2, Analog and digital signal processing, 45(6), 1998, pp. 761-763
Traditional methods for the design of fixed-point IIR filters suggest
the use of wave Biters to reduce complexity. The application of multip
lier blocks, which exploit redundancy across the coefficients, changes
the relationships between structures such that the cascade structure
is most efficient. The use of variable wordlength methods results in f
urther complexity reduction.