基于温度计编码的分布式算术剩余数系统算法可重构FIR滤波器

S. Jayashri, P. Saranya
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引用次数: 4

摘要

FIR滤波器的硬件实现在模拟和数字领域有着重要的应用。在数字信号处理中,FIR滤波器用于信号分离和信号恢复。现有方法中的滤波器采用乘法器技术设计,增加了面积、延迟和功率,也采用无乘法器技术设计,采用需要大量缩放的二进制输入。目的是设计一种可重构FIR滤波器,减少面积、延迟,提高速度和性能。该方法通过引入剩余数制将输入转换为剩余数,并将其编码为温度计码,为模内积计算提供了一种简便的方法。本文采用分布式算法设计,引入内积计算方法。利用可重构查找表设计了可重构FIR滤波器。可重构滤波器使用Verilog代码进行编码,并使用Cadence软件进行合成。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Reconfigurable FIR Filter using distributed arithmetic residue number system algorithm based on Thermometer Coding
Hardware implementation of FIR Filter has major applications in Analog and Digital areas. In digital signal processing FIR filters are used in separation of signals and in signal restoration purpose. The filter in the existing method is designed using multiplier technique which increases the area, delay, power and also designed using multiplier less technique by using binary input which requires much scaling. It is aimed to design a reconfigurable FIR filter which reduces area, delay also improves the speed and performance. In this method the input is converted into its residues by introducing residue number system and encoded as thermometer code which provides a simple means to perform modular inner product computation. The proposed work is designed using distributed arithmetic algorithm by introducing inner product computation method. The reconfigurable FIR filter is designed using reconfigurable look up table. The reconfigurable filter is coded using Verilog code and synthesized using Cadence Software.
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