Open Science Research Excellence

Ojas Chauhan

Publications

1

Publications

1
9903
Design of Multiplier-free State-Space Digital Filters
Abstract:
In this paper, a novel approach is presented for designing multiplier-free state-space digital filters. The multiplier-free 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 “structuretransformation matrix" is incorporated in these expressions. It is shown that quantization effects can be minimized by properly designing the structure-transformation matrix. Simulation results are very promising and illustrate the design algorithm.
Keywords:
Digital filters, minimum noise, multiplier-free,quantization, state-space.