电力线载波扩频通信调制模块的设计  

Design of Power Line Carrier of Spread Spectrum Communication Modulator

作　　者：张容娟[1] 刘大茂[1] 

机构地区：[1]福州大学物理与信息工程学院,福建福州350002

出　　处：《现代电子技术》2010年第3期114-115,118,共3页Modern Electronics Technique

摘　　要：自动抄表技术的应用已成规模,并且趋向于以电力线载波(PLC)方式为主。利用电力线进行信号传输无需另外架设通信线路,可以大大节省通信网建设的费用,具有现实的经济效益。但是在电力线上传输信号,衰减大、干扰强、阻抗变化复杂。因此,设计出一个功能强大的电力线载波扩频调制解调芯片,成为通信领域的一大挑战课题。本系统基于VerilogHDL设计,实现直接序列扩频发射机,并对系统中的每个模块和整个系统进行了仿真测试。Power Line Carrier（PLC） is the tendency in the automatic meter reading system. By means of PLC,extra communication channels are no need in signal transmission,cutting the cost of building communications network,with real economic benefits. However there are many difficulties in communication through power line, such as sharp signal attenuation, high noise ,time - varying impedance. Designing a powerful PLC modem becomes a challenge in the communication field. An implementation of direct- sequence spread spectrum system transmitter is presented, which is designed with Verilog HDL language.

关 键 词：PLC 直接序列扩频 调制 FPGA 

分 类 号：TN911[电子电信—通信与信息系统]