低压电力线信道中脉冲噪声的建模及仿真

被引:29
作者
李平
赵志辉
张振仁
机构
[1] 第二炮兵工程学院
关键词
电力线通信; 信道特性; 脉冲噪声; 马尔可夫模型;
D O I
暂无
中图分类号
TM73 [电力系统的调度、管理、通信]; TM743 [模拟与仿真];
学科分类号
摘要
在低压电力线信道的各种噪声中,随机脉冲噪声是影响高速电力线通信的主要因素。首先分析了低压电力线信道的噪声特性,尤其是脉冲噪声;通过将噪声状态分组,并引入过渡状态,建立了基于分群马尔可夫链的脉冲噪声统计模型,并用单差错状态Fritchman模型的无差错游程分布来拟合实际测量的概率曲线,从而得出模型的各参数值。最后进行了相应的测量及仿真,给出了脉冲间隔时间和脉冲宽度的概率分布曲线。仿真研究结果表明,所建模型是有效的。
引用
收藏
页码:58 / 62
页数:5
相关论文
共 6 条
  • [1] Hooijen O.A Channel Model for the Residential Power Circuit Used as a Digital Communications Medium. IEEE Transactions on Electronic Devices . 1998
  • [2] Zimmermann M,Dostert K.An Analysis of the Broad band Noise Scenario in Power-line Networks. In:Proceedings of the 4th International Symposium on Powerline Communications and Its Applications . 2000
  • [3] Fritchman B D.A Binary Channel Characterization Using Partitioned Markov-chains. IEEE Transactions on Information Theory . 1967
  • [4] Chan M H L,Donaldson R W.Amplitude,Width and Interarrival Distributions for Noise Impulses,and Bit Error Rates on Intrabuilding Powerline Communication Networks. IEEE Trans on Electromagnetic Compati-bility . 1989
  • [5] Babich F,Kelly O E,Milstein L B.Generalized Markov Modeling for Flat Fading. IEEE Trans on Communi-cations . 2000
  • [6] Zimmermann M,Dostert K.Analysis and Modeling of Impulsive Noise in Broad-band Powerline Communica-tions. IEEE Transactions on Electronic Devices . 2002