PLC中联合PTS的脉冲噪声抑制技术  

Joint impulsive noise mitigation scheme with PTS in PLC

作　　者：管春[1] 王俊杰 龙江航 莫雪莎 GUAN Chun;WANG Jun-jie;LONG Jiang-hang;MO Xue-sha(School of Optoelectronic Engineering,Chongqing University of Posts and Telecommunications,Chongqing 400065,China)

机构地区：[1]重庆邮电大学光电工程学院,重庆400065

出　　处：《计算机工程与设计》2021年第3期636-641,共6页Computer Engineering and Design

基　　金：国家自然科学基金项目(61671091)。

摘　　要：针对电力线通信(PLC)存在脉冲噪声对信息传输造成严重干扰的问题,提出一种联合部分传输序列(PTS)的脉冲噪声抑制技术来降低PLC系统中的脉冲噪声干扰,提高通信的可靠性。针对传统非线性法在高峰均比下性能大幅降低的缺陷,通过在噪声抑制前引入PTS技术降低信号峰均比,提高脉冲噪声和信号的区分度;结合Clipping和Blanking技术,达到抑制脉冲噪声的目的。仿真结果表明,与传统技术相比,该技术显著降低了误码率(SER),改善了系统性能。Under the condition of information transmission caused by impulsive noise on power line communication,an impulsive noise suppression technology of combined partial transmission sequence(PTS)was proposed to reduce the interference of impulsive noise in PLC system and improve the reliability of communication.Aiming at the defect of the traditional nonlinear method that the performance is greatly reduced under the condition of high peak to average power ratio(PAPR),the signal peaking ave-rage ratio was reduced by introducing the PTS technology before noise suppression to improve the discrimination between impulse noise and signal.Clipping and Blanking techniques were combined to achieve the purpose of suppressing impulsive noise.Simulation results show that,compared with the traditional technology,the proposed technology significantly reduces the bit error rate(SER)and improves the system performance.

关 键 词：电力线通信 脉冲噪声 可靠性 部分传输序列 峰均比 误码率 

分 类 号：TN915.853[电子电信—通信与信息系统]