摘要
通过对OFDM的纠错技术、时频域交织技术、分集技术、信道均衡技术、信道映射技术等一系列物理层通信技术的研究,对各种技术的审慎选取及反复优化组合应用,达到克服时变、噪声、衰减、畸变等问题,形成一个在电力线这个恶劣信道上进行稳定、高效通信的鲁棒系统,进而解决用电信息采集系统中本地通信信道存在的一些问题;同时设计了一套载波通讯性能的评估方法,并对常见的几种载波方案进行了对比测试,以验证该方法的合理性及正确性。
In this paper, through the OFDM error correction technology, time and frequency domain interleaving tech- nology, research and diversity, channel equalization, channel mapping technology and a series of physical layer communication technologies, a variety of techniques to optimize a combination of careful selection and repeated applications so as to achieve to overcome time-varying, noise, attenuation, distortion, etc. , and to form a stable, robust and efficient system of power line communication channels, thereby solving some of the problems in the information collection system existing in the local communication channel. Meanwhile, er communication is designed, and compared several common carrier cy of the proposed method. a method for evaluating the performance of carrisolutions to verify the reasonableness and accura-
出处
《电测与仪表》
北大核心
2015年第15期113-119,共7页
Electrical Measurement & Instrumentation
关键词
OFDM
窄带载波
电力线通信(PLC)
用电信息采集
OFDM, narrowband carrier, power line communication（PLC）, electricity information acquisition system
