摘要
文章分析了载波通信的现状,以及宽带载波测量的关键因素。研究了低压电力线宽带载波通信系统物理层发射端的结构,该物理层发射端由信道编码、星座映射、IFFT、循环前缀与加窗、正交调制和加前导等模块构成,针对上述模块从算法实现的角度进行了分析研究。文章对Turbo交织模块、编码模块、IFFT模块等关键模块的FPGA实现方案进行了详细介绍和分析。该实现方案对宽带载波标准信号生成设备研发具有一定的指导意义。。
This paper analyzes the current situation of carrier communication and key factors of broadband carrier measurement.The structure of physical layer of transmitter on low-voltage power line broadband carrier communication system is studied.The physical layer of transmitter includes channel coding module,OFDM modulator,constellation mapper,IFFT module,cyclic prefix and window module,orthogonal modulation module and inseting preamble module.These modules are analyzed and studied from the perspective of algorithm implementation.FPGA implementing scheme of Turbo interleaver,encoding module and IFFT module is introduced and analyzed in details,which has certain guiding significance for the generation equipment of broadband carrier standard signals.
作者
金鑫
张乐平
罗鸿轩
胡珊珊
Jin Xin;Zhang Leping;Luo Hongxuan;Hu Shanshan(Southern Power Grid Institute of Science,Guangzhou 510080,China)
出处
《电测与仪表》
北大核心
2018年第16期78-83,118,共7页
Electrical Measurement & Instrumentation
关键词
低压电力线宽带载波通信
OFDM调制
TURBO编码
信道交织
分集拷贝
low-voltage power line broadband carrier communication,OFDM modulation,Turbo coding,channel interleaving,diversity copy
