杨挺;刘佳林;张亚健;侯昱丞;

• 1:智能电网教育部重点实验室(天津大学)

摘要(Abstract)：

电力线干扰噪声是影响电力线载波通信(power line communication,PLC)传输质量的重要因素,直接降低电网信息物理系统的泛在感知和可靠传输性能。为提高电力线载波通信抗干扰能力,该文提出了一种低压电力线载波信号时频混合降噪方法。通过对电力线载波环境中五种常见噪声建模分析,结合载波调制方式,将载波信号降噪问题分解为信号频域降噪和载波时域降噪两步处理,并提出码元位置校验和幅值补偿操作,最终实现电力信号降噪的目的。仿真实验结果表明,该方法在不同编码模式和信道环境下都具有显著的降噪效果,且有很好的抗信号衰减性能,可有效提升信噪比。

关键词(KeyWords)： 信息物理系统;低压电力线载波通信;用电信息采集系统;降噪;信噪比

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划(2017YFB0903000);; 国家自然科学基金资助项目(61571324);; 天津市自然科学基金资助重点项目(16JCZDJC30900);; 国际科技合作专项项目资助(2013DFA11040)~~

作者(Author): 杨挺;刘佳林;张亚健;侯昱丞;

Email:

DOI:

参考文献(References)：

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