低压电力线通信信道噪声特性的测试与分析

The measurement and analysis of noise characteristics in low voltage power line communication channel

低压电力线通信信道的噪声,不是通常信道中的加性高斯白噪声。作者在文中介绍了低压电力线通信信道噪声的测试方法和功率谱估计方法,讨论了噪声的分类、特点和产生原因。重点分析了不同时间、不同地点的噪声分布和特点,对噪声的时变性进行了较为详细的研究。

Unlike many other communication channels,noise in low voltage plower line communication(PLC) channel is not an Additive Gaussian White Noise(AGWN).In this paper,the measurement technique and power spectrum density(PSD) estimation method are presented,and the classifications,characteristics and sources of the noise are discussed.The two emphasis are analyzing the distribution of the noise and researching the time variability of the noise in low voltage PLC channel.