Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/72764
Title: Multiplierless realization of adaptive filters by nonuniform quantization of input signal
Authors: Li, Dongning 
Ching Lim, Yong 
Issue Date: 1994
Source: Li, Dongning,Ching Lim, Yong (1994). Multiplierless realization of adaptive filters by nonuniform quantization of input signal. Proceedings - IEEE International Symposium on Circuits and Systems 2 : 457-459. ScholarBank@NUS Repository.
Abstract: This paper presents a multiplierless realization structure for the implementation of adaptive digital filters. Multiplierless realization is achieved by quantizing input signals in such way that each input sample is expressed as a sum of a fixed number of signed power-of-two (SPT) terms. This simplifies all multiplications involving input signal data. Simulation results for suppressing a narrow-band interference in a direct-sequence spread-spectrum communication system show that the performance of our technique with input signal quantized to 2 SPT terms is comparable to a conventional filter with input uniformly quantized to 10 bits. However, our technique reduces the number of transistors required for realization in a custom VLSI circuit to about 1/3 of that required by conventional realization.
Source Title: Proceedings - IEEE International Symposium on Circuits and Systems
URI: http://scholarbank.nus.edu.sg/handle/10635/72764
ISSN: 02714310
Appears in Collections:Staff Publications

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