Traditional methods for the design of fixed-point IIR filters suggest the use of wave filters to reduce complexity. The application of multiplier 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 further complexity reduction
Published in:
Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on
(Volume:45
,
Issue:
6
)
Date of Publication: Jun 1998