基于COFDM技术的高速数字载波通信的实现  

Realization of high-speed digital power line communication based on COFDM technology

作　　者：杨宇[1,2] 周任军[3] 

机构地区：[1]南京国电自动化研究院 [2]长沙理工大学电气信息工程学院,湖南长沙410076 [3]长沙理工大学电气信息工程学院

出　　处：《电力系统通信》2005年第6期46-48,共3页Telecommunications for Electric Power System

摘　　要：如何提升高压电力线载波通信的传输速率,成为困扰电力线载波通信技术发展的难题。文章提出了一套基于COFDM(编码正交频分复用)的高速数字载波方案,可将先进的OFDM(正交频分复用)调制技术与性能优越的前向纠错(FEC)编码技术有机地结合起来,大大提高了频带受限的载波通信的速率和传输可靠性。同时在介绍OFDM及编码技术原理的基础上,提出了16位定点的DSP-TMS320VC5410的模块化设计,讨论了基于COFDM的高速数字载波通信传输模块的软硬件实现。How to increase the transmission speed of high voltage power line communication is becoming a more difficult technical problem of perplexing power line carrier communication development. Combining advanced OFDM modulate technology with FEC encoding technology, a set of high speed digital COFDM based power line carrier schemes are put forward in this paper, and these schemes can improve the speed and transmission reliability of power line carrier communication greatly. Based on the introduction of OFDM and encoding technology, module design technique of 16 fixed point DSP TMS320VC5410 is proposed, and the software and hardware realization process of COFDM based high speed digital power line carrier communication transmitting module is discussed.

关 键 词：编码正交频分复用 数字载波通信 数字信号处理器 

分 类 号：TN76[电子电信—电路与系统]