PLC信道特性分析及建模仿真

使用低压电力线作为通信信道具有很多优势,但同时又具有对高频信号衰减强、噪声干扰大、多径和时变性等特点。因此,在研究信号调制、编码、传输和解调等通信模块时,有必要对信道特性进行分析以保证系统的通信质量和提高通信速率。通过对信号传播模型、噪声模型的研究及测量结果的分析,提出了一种基于统计方法得出的低压电力线载波信道模型,并进行仿真,与测试结果进行对比分析。

Analysis and Modeling Simulation of PLC Channel Characteristic

Though low-voltage power line is used as a communication channel with many advantages,it also has many characteristics that the high frequency signal attenuation is strong,noises,multipath,and time-varying at the same time.Therefore,when studying the appropriate signal modulation,coding,transfer and demodulation modules,it is necessary to analyze the channel characteristics in order to ensure the quality of its communication and improve the communication rate.It introduces a low-voltage power line carrier communication channel through analyzing signal propagation models,studying noise models and the analysis of measurement based on statistical methodology,which is simulated with comparison of test results.