Design and implementation of fractional order integrator with reduced hardware
Design and implementation of fractional order integrator with reduced hardware
复制标题
减少硬件的分数阶积分器的设计与实现
DOI：
10.1109/spin.2016.7566763
复制
发表时间：
2016
期刊：
影响因子：
1.8
通讯作者：
T. Rawat
中科院分区：
文献类型：
--
作者：
Richa Barsainya;Meenakshi Aggarwal;T. Rawat
本文提出了一种基于重力搜索算法（GSA）的晶格波数字滤波器（GSA）基于晶状波数字过滤器（GSA）的设计和乘数实现的新方法。 FOI设计问题使用晶格波数字滤波器（LWDF）的传输函数提出为优化问题。使用LWDF结构实现FOI，由于其出色的特性，提高了设计的准确性，而且仅需要n个数量的Nther阶FOI乘数系数。此外，本文还介绍了FOI的最小硬件和低功率耗散，这是有效实施的主要关注点。提出的晶格波数字FOI（LWDFOI）的设计水平区域优化是通过将恒定乘数转换为偏移并使用规范签名的数字代码（CSDC）技术来完成的。提出的LWDFOI将在Xilinx Spartan XC3S200-4FT256字段可编程栅极阵列（FPGA）设备上实施并成功测试。实现了模拟结果，以显示拟议的LWDFOI与最近文献的比较。还根据速度，即最大频率，面积（切片数）和功耗。拟议的LWDFOI已被发现在低和中频范围内胜过现有的LWDFOI。
This paper proposes a novel methodology for design and multiplierless implementation of fractional order integrator (FOI) based on lattice wave digital filter using gravitational search algorithm (GSA). The FOI design problem is formulated as an optimization problem using the transfer function of lattice wave digital filter (LWDF). The realization of FOI using LWDF structure increases the accuracy of design due to its excellent properties and also it requires only N number of multiplier coefficients for Nth order FOI. Furthermore, the minimum hardware and low power dissipation of FOI, which are the main concern of efficient implementation is also presented in this paper. The design level area optimization of the proposed lattice wave digital FOI (LWDFOI) is done by converting constant multipliers into shifts and adds using canonical signed digit code (CSDC) technique. The proposed LWDFOI is implemented and successfully tested on Xilinx Spartan XC3s200-4ft256 field programmable gate array (FPGA) device. Simulation results are accomplished to show the comparison of the proposed LWDFOI with recent literature. The performance of the proposed LWDFOI is also evaluated in terms of speed, i.e. maximum frequency, area (number of slices) and power consumption. The proposed LWDFOI have been found to outperform the existing ones reasonably well in low and mid frequency range.