期刊名称：International Journal of Innovative Research in Computer and Communication Engineering
印刷版ISSN：2320-9798
电子版ISSN：2320-9801
出版年度：2018
卷号：6
期号：3
页码：2368
DOI：10.15680/IJIRCCE.2017.0603110
出版社：S&S Publications
摘要：Adaptive filters have proven to be an instrumental system component in the modern signal processingapplications. Innumerable systems that we presently depend on in our daily life would not exist without the use ofadaptive filters. There are two conflicting algorithms that are commonly used for implementation of adaptive filters;namely the narrow band based on multi rate approach. In addition, a computationally efficient distributed arithmetic(DA) approach may be used to implement the narrow band algorithm which may further reduce computationalcomplexity. DA scheme employs bit-serial operations and look-up tables (LUTs) sharing and weight increment termsof multi-rate approach to implement high throughput filters. Therefore, a shared-LUT design is proposed to realize theDA computation. Instead of using separate registers to store the possible results of partial inner products for DAprocessing of different bit positions, registers are shared by the DA units for bit slices of different weightage.
关键词：Finite Impulse Response (FIR); Look Up Table (LUT); Adaptive Filter; Narrow Band Filter
