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1. 北京邮电大学电子工程学院,北京100876
2. 全球能源互联网研究院,北京102209
[ "李强(1985-),男,北京邮电大学电子工程学院博士生,主要研究方向为无线通信与信号处理、电磁兼容与微波技术。" ]
[ "张洪欣(1969-),男,北京邮电大学电子工程学院教授、博士生导师,宽带通信与微波技术中心主任,主要研究方向为无线通信与电磁兼容、通信信号处理、电磁辐射信息安全、生物电子等。" ]
[ "罗佳祺(1990-),男,北京邮电大学硕士生,主要研究方向为无线通信。" ]
[ "陆阳(1984-),男,博士,全球能源互联网研究院工程师,主要从事电力通信新技术研究工作。" ]
[ "李建岐(1969-),男,全球能源互联网研究院教授级高级工程师,主要从事电力通信新技术研究及应用研发工作。" ]
[ "吕英华(1944-),男,北京邮电大学教授、博士生导师,主要研究方向为计算电磁学、电磁兼容、生物医电工程、天线和电磁散射、计算机信息技术等。" ]
网络出版日期:2016-07,
纸质出版日期:2016-07-15
移动端阅览
李强, 张洪欣, 罗佳祺, 等. 变电站内2.4 GHz无线信道路径损耗建模[J]. 电信科学, 2016,32(7):34-39.
Qiang LI, Hongxin ZHANG, Jiaqi LUO, et al. Modeling of the 2.4 GHz wireless channel path loss in substation[J]. Telecommunications science, 2016, 32(7): 34-39.
李强, 张洪欣, 罗佳祺, 等. 变电站内2.4 GHz无线信道路径损耗建模[J]. 电信科学, 2016,32(7):34-39. DOI: 10.11959/j.issn.1000-0801.2016195195.
Qiang LI, Hongxin ZHANG, Jiaqi LUO, et al. Modeling of the 2.4 GHz wireless channel path loss in substation[J]. Telecommunications science, 2016, 32(7): 34-39. DOI: 10.11959/j.issn.1000-0801.2016195195.
为了评估变电站内电磁干扰对电力通信系统的干扰,采用频域测量方法对某市110kV变电站、220kV变电站的2.4GHz电磁波路径损耗进行了测量和分析。针对测量数据,分别利用最小均方差和累积法对路径损耗模型中路径损耗指数和标准差相关参数进行估计,并建立了路径损耗模型,仿真结果表明,模型估计结果与测量值相差不大。另外,搭建了ZigBee仿真系统,在信噪比为5dB和10dB的情况下,仿真出误码率随距离的变化关系,为通信设备布置在变电站环境中提供了研究依据。
In order to assess the influence of electromagnetic interference in the substation of the electric power communication system
frequency measurement method was adopted to obtain the data of 2.4 GHz electromagnetic wave path loss of the substation of 110 kV and 220 kV in a certain city.By using the method of minimum mean square error (MMSE) and cumulative sum (CUSUM) to estimate the parameters of path loss model such as path loss index and the standard deviation
the path loss model was set up according to measured data
respectively.The simulation results show that the gap between estimation results and the measured values is not big.In addition
a ZigBee simulation system was constructed to simulate the relationship of bit error rate (BER) varies with distance in two cases of the signal to noise ratio (SNR) at 5 dB and 10 dB respectively.A research basis for short distance wireless communication devices decorated in the substation environment was provided.
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PHAIBOON S , PHOKHARATKUL P , SOMKUARNPANIT S . New upper and lower bounds line of sight path loss model for mobile propagation in buildings [J ] . International Journal of Electronics and Communications , 2008 , 62 ( 3 ): 207 - 215 .
岳恭平 . 基于MMSE法的室内通道无线损耗研究 [J ] . 信息传输与接入技术 , 2009 , 35 ( 2 ): 31 - 33 .
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HE Y , WANG Y S , ZHANG Y N , et al . A statistical path loss model for UWB outdoor channel [J ] . Journal of Projectiles,Rockets,Missiles and Guidance , 2008 , 28 ( 4 ): 1 - 4 .
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CUI Y N , ZHANG X H , YANG R G , et al . Research on path loss index based on log distance path loss model [C ] // The Thirteenth National Conference on Microwave Integrated Circuits and Mobile Communication , October 15 - 19 , 2010 , Hangzhou,China .[S.l.:s.n ] , 2010 : 267 - 271 .
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CHEN G Q , HUANG J J . Research on the realization method of common cumulation method [J ] . Modern Computer , 2008 ( 279 ): 26 - 27 .
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