通信学报2017，Vol.38Issue(12)：86-97,12.DOI:10.11959/j.issn.1000-436x.2017283
电力线通信中的基于峰值估计和反馈补偿的自适应噪声抑制
Adaptive noise mitigation based on peak estimate and feedback compensation in power line communication
摘要
Abstract
According to the problem that the threshold for traditional blanking depends on the characteristic parameters of noise and exist large deviation,an adaptive noise mitigation algorithm based on peak estimate and feedback compensa-tion(ANMPEFC)in power line communication was proposed.First,SLM mapping preprocessing method was employed to reduce the PAPR of emission signal,peak information was used to estimate the frequency of the received signal and the relationship between peak frequency and impulse characteristics was established.Next,received signal was processed by blanking block and feedback compensation block adaptively according to estimated pulse frequency.Finally,perfor-mance of proposed algorithm and existing algorithms were analyzed based on threshold deviation.According to the re-sults from simulation,it is clearly demonstrated that the proposed ANMPEFC can work in power line impulse noise en-vironment without knowing the noise characteristics and has better performance in contrast to existing impulse noise suppression algorithm.关键词
电力线通信/峰值估计/脉冲噪声/反馈补偿/OFDM/消隐Key words
power line communication/peak estimation/impulse noise/feedback compensation/OFDM/blanking分类
信息技术与安全科学引用本文复制引用
谭周文,刘宏立,詹杰,马子骥,刘述钢..电力线通信中的基于峰值估计和反馈补偿的自适应噪声抑制[J].通信学报,2017,38(12):86-97,12.基金项目
国家自然科学基金资助项目(No.61771191,No.61540012) （No.61771191,No.61540012）
中央高校基本科研基金资助项目(No.1053214004) （No.1053214004）
湖南省自然科学基金资助项目(No.2017JJ2052,No.2015JJ2060) （No.2017JJ2052,No.2015JJ2060）
教育部产学合作协同育人基金资助项目(No.201601004010) （No.201601004010）
湖南省普通高校教学改革研究基金资助项目(No.XJT2016-400)The National Natural Science Foundation of China (No.61771191,No.61540012),The Fundamental Research Funds for the Central Universities(No.1053214004),The Natural Science Foundation of Hunan Province (No.2017JJ2052,No.2015JJ2060),Min-istry of Education Cooperative Education Project (No.201601004010),Teaching Reform Project of Hunan Ordinary colleges and Universi-ties (No.XJT2016-400) （No.XJT2016-400）
