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|Title:||Multiplierless realization of adaptive filters by nonuniform quantization of input signal|
|Authors:||Li, Dongning |
Ching Lim, Yong
|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|
|Appears in Collections:||Staff Publications|
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