一种新的窄带电力线载波通信物理层模型A new physical layer model of narrow-band power line carrier communication
赵黎,焦晓露,张峰
摘要(Abstract):
G3-PLC标准是一个主要面向智能电网通信技术的全球开放性协议,该协议中引入了正交频分复用(OFDM)技术,由于G3-PLC标准中的原基带OFDM信号为复数信号,在接收端需要采用相干检测技术进行解调,系统复杂度高。因此根据FFT原理,通过在频域对信号进行编码,使发送端OFDM信号实数化,从而在不影响系统可靠性的前提下简化系统接收端的复杂度。最后通过仿真对该方法进行验证,结果表明,无论在高斯信道还是在实际电力线载波信道中,系统性能均非常稳定。
关键词(KeyWords): 电力线载波通信;智能电网;物理层;正交频分复用;帧结构;信号编码
基金项目(Foundation): 国家自然科学基金项目(61671362);; 陕西省科技厅一般项目-工业领域(2017GY-081);陕西省科技厅自然基金项目(2017JM6041);; 西安市科技计划项目(2017075CG/RC038(XAGY001));; 陕西省教育厅科技专项(2017JK0373)~~
作者(Author): 赵黎,焦晓露,张峰
DOI: 10.16652/j.issn.1004-373x.2018.15.002
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