基于现场可编程门阵列的单载波频域均衡系统

Single carrier-frequency domain equalization system based on FPGA

摘要:

利用Xilinx公司的FPGA器件，实现单载波频域均衡的算法。针对实现过程中资源消耗较多的问题，提出了基于快速傅里叶变换/逆快速傅里叶变换的突发实现方法和除法的查找表实现方法，并通过集成软件环境(ISE)软件内嵌的综合工具对整个系统进行综合，查看在使用此2种实现方法时的现场可编程门阵列内部的资源消耗，并将其与使用传统方法时的资源消耗情况进行对比，从而证实了此2种实现方法对资源的节约，同时对频域均衡系统进行了仿真，验证了方案的可行性。

Abstract:

This paper describes the implementation of the single carrier-frequency domain equalization by using the Field Programmable Gate Array(FPGA) devices of Xilinx Company. The implementation of the bursted structure of Fast Fourier Transform(FFT)/Inverse FFT(IFFT) and the lookup table of division are proposed. The synthesis tool embedded in the Integrated Software Environment(ISE) is adopted to synthesize the whole system，and check the resource consumption of the two methods. It is indicated that the proposed two methods can decrease the resource consumption by comparison to traditional methods. The feasibility of the entire program is verified by the simulation on the frequency domain equalization system.