基于OFDM的低压电力线通信系统的均衡模块在FPGA上的实现

尽管正交频分复用(OFDM)是一种抗干扰和抗衰落能力都很强的调制技术，但由于信道的特殊性，在基于OFDM的低压电力线通信中仍要使用均衡技术。本文提出了基于OFDM的低压电力线通信系统的均衡模块的系统结构和时域、频域均衡算法，最后又介绍了算法和结构在FPGA上的实现，给出了MAC单元框图，LMS算法框图和粗略的Verilog程序框图以及行为仿真结果。

Realization of the equalization module using FPGA for OFDM low-voltage

Although the OFDM technology has excellent capability of anti-jamming and anti-decline, the use of equalizer in low-voltage power line communication based on OFDM is necessary. In this thesis we introduce the arithmetic in time-domain and frequency-domain and the structure of equalizer of low-voltage power line communication system based on OFDM. At last we discuss the MAC unit diagram, LMS arithmetic diagram and the implementation of the arithmetic and structure on FPGA with Verilog programme and ModelSim simulation software.