摘要
通信信号在配电网传输中,其背景信号必然含有大量的谐波成分,这给通信信号的检测带来极大的困难。文中首先介绍了基于配电网的双向工频通信系统,并根据双向工频通信的信号特征,提出了基于独立分量分析的谐波消除方法。该方法在消除谐波干扰的同时,几乎对有用信号成分未有任何破坏影响。还通过MATLAB仿真对此方法进行了验证,结果良好。
In this paper,two-way PLC system based on distribution networks is introduced firstly.A lot of harmonic components exist in the PLC communication signal,and it will be difficult to pick up the useful signal.In terms of the signal character in PLC a new method using independent component analysis to eliminate harmonic interference is proposed.The method can eliminate harmonic interference without wrecking useful signals.The method is testified effectively through MATLAB simulation.
出处
《电力系统通信》
2005年第2期25-28,共4页
Telecommunications for Electric Power System
关键词
谐波
盲源分离
双向工频通信
独立分量分析
harmonic
blind source separation
two-way PLC
independent component analysis
