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作 者:杨淑艳 Yang Shuyan(Shenzhen Monitoring Station,State Radio Monitoring Center,Shenzhen 518118,China)
机构地区:[1]国家无线电监测中心深圳监测站,广东深圳518118
出 处:《能源与环保》2022年第4期72-76,共5页CHINA ENERGY AND ENVIRONMENTAL PROTECTION
基 金:国家重点研发计划资助项目(2017YFB0403402)。
摘 要:为了避免过量电磁辐射给环境和人体健康带来的严重威胁,研究了电力通信基站电磁辐射环境保护及检测方法。根据研究区概况布设检测点,利用电磁场强度测量仪、电磁辐射分析仪等检测仪器,结合电磁辐射防护标准以及信道共享策略,创建马尔科夫模型,使用该模型计算信号实际占空比,实现平均电磁辐射强度精准检测,以此完成电力通信基站电磁辐射环境保护及检测。实验结果表明,电力通信基站电磁辐射在时间段4:30—7:30、16:30—19:30以及在距离基站天线垂直投影30 m范围内,对环境的影响程度较大,且复合场强的电磁辐射强度远大于单个场强的电磁辐射强度,而该方法检测到的电磁辐射强度与基准值的偏差率基本都保持在1%以下,检测精度较高。In order to avoid the serious threat of excessive electromagnetic radiation to the environment and human health,the environmental protection and detection methods of electromagnetic radiation in power communication base stations were studied.First,arranged according to the situation in the study area,the use of electromagnetic field intensity measuring instrument,electromagnetic radiation,analyzer,such as testing instruments,combined with electromagnetic radiation protection standards,and shared channel strategy,create a Markov model,using the model calculating the actual duty ratio signal,precision detection,the average intensity of electromagnetic radiation,in order to complete the power communication base station electromagnetic radiation environmental protection and detection.The experimental results showed that,the electromagnetic radiation of the base station of power communication has a great impact on the environment in the range of 4:30—7:30,16:30—19:30 and 30 m from the vertical projection of the base station antenna,and the electromagnetic radiation intensity of the composite field strength is far greater than that of the single field strength.The deviation rate between the electromagnetic radiation intensity detected by this method and the reference value is basically less than 1%,and the detection accuracy is high.
关 键 词:电力通信基站 电磁辐射 环境保护及检测 信道共享 马尔科夫模型
分 类 号:TN929[电子电信—通信与信息系统]
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