Noise Emulation System of Power Communication
QU Zhou-qiang · Jisuanji fangzhen · 2004
It is a trend to communicate in low-voltage power line. But its serious noise background is the main factor that affects the quality of digital communication. There are few documents about the noise of power communication. The paper introduces an emulation method of the noise of power communication by using Simulink,Communications Blockset,Power System Blockset and Signal Processing Toolbox in Matlab. The author makes use of the Sptool toolbox to dispose the emulation data and get its wave graph. The wave graph of emulation data coincides with the actual data. It proves that the emulation model is feasibility. At the end of the paper, the author makes use of several methods to analyze its PSD and educes an effective method to analyze the PSD of noise of power communication. It gives us an effective way in either theory analysis or practical application.