| 输电线路电磁干扰对北斗变形监测数据质量及定位精度的影响分析 |
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| 引用本文： | 冯志强,张耀东,胡丹晖,周光远,李朝晖,周学明,毛晓坡.输电线路电磁干扰对北斗变形监测数据质量及定位精度的影响分析[J].测绘通报,2021,0(10):94-97,113. |
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| 作者姓名： | 冯志强 张耀东 胡丹晖 周光远 李朝晖 周学明 毛晓坡 |
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| 作者单位： | 1. 国网湖北省电力有限公司电力科学研究院, 湖北 武汉 430077;2. 国网湖北省电力有限公司荆门供电公司, 湖北 荆门 448001 |
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| 基金项目： | 国网湖北省电力有限公司重点科技项目（52153218003M） |
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| 摘 要： | 我国自主研发的北斗卫星导航系统已完成组网，除了传统测绘领域之外，目前北斗正在各行业普及，落实相关应用。本文针对输电线路地质灾害监测应用，从北斗原始观测值数据质量、定位精度两个角度探究输电线路电磁环境对北斗卫星监测数据的影响。长达23d的500kV输电线路北斗监测数据分析结果表明：在强电磁干扰、无电磁干扰两种情形下，数据完整率差异小于1%，多路径效应差异小于0.1m，信噪比差异均小于0.3dBHz，周跳比差异均小于150；定位精度的相对差别小于5%。综合而言，输电线路电磁环境对北斗变形监测数据质量及定位精度的影响不显著。
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| 关 键 词： | 北斗 输电线路地质灾害 监测 数据质量 定位 |
| 收稿时间： | 2020-10-09 |
| 修稿时间： | 2020-12-01 |
Influence analysis of transmission line electromagnetic interference on BDS data quality and accuracy |
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| FENG Zhiqiang,ZHANG Yaodong,HU Danhui,ZHOU Guangyuan,LI Zhaohui,ZHOU Xueming,MAO Xiaopo.Influence analysis of transmission line electromagnetic interference on BDS data quality and accuracy[J].Bulletin of Surveying and Mapping,2021,0(10):94-97,113. |
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| Authors: | FENG Zhiqiang ZHANG Yaodong HU Danhui ZHOU Guangyuan LI Zhaohui ZHOU Xueming MAO Xiaopo |
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| Institution: | 1. Electric Power Research Institute, State Grid Hubei Electric Power Co., Ltd., Wuhan 430077, China;2. Jingmen Power Supply Company of State Grid Hubei Electric Power Co., Ltd., Jingmen 448001, China |
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| Abstract: | China's self-developed BDS satellite navigation system is now completed. In addition to the traditional surveying and mapping field, BDS is now popularizing in various industries and applications. Aiming at the application of transmission line geological hazard monitoring, this paper explores the influence of transmission line electromagnetic environment on BDS satellite monitoring from two aspects:data quality and positioning accuracy. 23 days BDS observations under strong and no electromagnetic interference is applied into study. The analysis results of BDS monitoring data of 500 kV transmission line for 23 days show that the difference of data integrity rate is less than 1%, the multipath effect difference is less than 0.1 m, the signal-to-noise ratio difference is less than 0.3 dBHz, the cycle slip ratio difference is less than 150, and the relative positioning accuracy difference is less than 5%. In general, the influence of transmission line electromagnetic interference on the BDS data quality and positioning accuracy is not significant. |
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| Keywords: | BDS transmission line geological hazards monitoring data quality positioning |
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