A class of high-precision multiplier-free FIR filter realizations with periodically time-varying coefficients

In this paper, we extend the periodically timevarying (PTV) filter realization, which was proposed for FIR filter, to be used for IIR filters. The realization consists of ternary ((0, f l } ) or quinary ((0, fl, f 2 ) ) PTV coefficients with simple input and output units. The coefficients as well as the input and output units require no hardware multiplier. This simplifies the layout for VLSI implementation and increases the processing speed.

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Design of Multiplier-free State-Space Digital Filters

Bose

Zhang

Chauhan

et al.

2005 IEEE International Symposium on Circuits and Systems

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In this paper, a novel approach is presented for designing multiplier-free state-space digital filters. The multiplierfree design is obtained by finding power-of-2 coefficients and also quantizing the state variables to power-of-2 numbers. Expressions for the noise variance are derived for the quantized state vector and the output of the filter. A "structure-transformation matrix" is incorporated in these expressions. It is shown that quantization effects can be minimized by properly designing the structuretransformation matrix. Simulation results are very promising and illustrate the design algorithm.

show abstract

A class of high-precision multiplier-free FIR filter realizations with periodically time-varying coefficients

Cited by 5 publications

References 16 publications

Multiplier-free realizations for FIR multirate converters based on mixed-radix number representation

Multiplier-free realizations for FIR multirate converters based on mixed-radix number representation

Multiplier-free IIR filter realizations with periodically time-varying coefficients

Design of Multiplier-free State-Space Digital Filters

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