低压电力线扩谱通信系统及抗干扰性能分析  

Spread Spectrum Communication System on Low Voltage Power Line and Its Analysis of Anti-Jamming Capability

作　　者：仲元昌[1] 曾孝平[1] 

机构地区：[1]重庆大学通信工程学院,重庆400044

出　　处：《电工技术学报》2004年第9期82-85,共4页Transactions of China Electrotechnical Society

基　　金：国家自然科学基金资助项目(59677009);重庆市应用基础项目(99-5666)

摘　　要：为了利用低压电力线实现可靠通信,目前主要采用抗干扰能力较强的扩谱通信技术。本文建立了低压电力线扩谱通信系统模型;基于该模型,分析了低压电力线扩谱通信系统的抗干扰能力,并对分析结果进行了通信实验。结果表明,该低压电力线扩谱通信系统具有较强的抗干扰能力。因此,该扩谱通信系统能较好地抑制低压电力线通信信道的干扰,可广泛应用于低压电力线通信。Low voltage power network is the widespreade wire network distributing in the world, it is mainly used to transport electric power. But the communication function was appended on the low voltage power network in the paper. It can lower the cost of wire communication because of not needing to lay wire over again. However, there are a great deal disturbance on low voltage power line. In order to realize reliable communication on low voltage power lines, the spread spectrum method was adopted. The spread spectrum communication system model was set up for low voltage power line and the experiment circuit was developed based on the model. Its anti-jamming capability was analyzed and experimented. The experiment results indicate that the system has rather strong anti-jamming ability. Thus, it can restrain the noise from low voltage power line and be widely applied to the communication field.

关 键 词：扩谱通信 低压电力线通信 抗干扰能力 抗干扰性能 信道 可靠通信 系统模型 

分 类 号：TM73[电气工程—电力系统及自动化] TN496[电子电信—微电子学与固体电子学]