基于OFDM低压电力线通信技术研究

Low-voltage Power Line Communication Technology Based on OFDM

论文主要研究了低压电力线通信中OFDM调制解调技术原理及其实现过程,针对OFDM峰均功率比(PAPR)比较高的问题,提出了一种改进的OFDM调制解调技术(相位干涉法)并进行了仿真分析,使信息传输的安全性和可靠性有了很大的提高。

This paper studies the fundamental principle and implementation of the orthogonal frequency division multi plexing（OFDM） in the lowvohage power line communication. To solve the problem that the peak to average power ratio （PAPR） of the OFDM system is high, an improved phaseinterference method is proposed. The computer simulation verfies the efficiency of the improved method which improves the security and reliability of information transmission.