摘要
对电力线信道的传输特性进行了介绍,然后从家居网络领域的角度对电力线通信系统进行了分析,给出了电力线作为传输介质家居网络的具体方案。提出了采用正交频分多路复用(OFDM)技术组建智能家居网络,利用具有高速运算能力的DSP芯片建立电力线通信系统。结合目前最新的OFDM技术,对电力线通信系统中的信道编码技术和调制解调技术进行了研究,并给出了系统设计的仿真结果。
The transmission characteristics of power line channel were introduced, and the power line communication system was analyzed from the field of home network. The concrete scheme of home network based on the transmission medium of power line was given out. The methods of constructing the intelligent home network based on the OFDM technology, the system model and the hardware realization methods of power line communication system based on the DSP chip were given. Combining the latest OFDM technology, the channel coding technology and the modulation and demodulation technology in the power line communication system were researched, and the simulaion results of system design was given.
出处
《低压电器》
北大核心
2008年第4期18-21,31,共5页
Low Voltage Apparatus
基金
广东省自然科学基金(7301713)
中国博士后基金(20070410825)
关键词
家居网络
电力线载波
正交频分多路复用
数字信号处理器
home network
power line carrier wave
orthogonal frequency division multiplexing （OFDM）
digital signal processor （DSP）
