
高精度GPS滑坡监测网建立研究
StudyonEstablishmentofHighPrecisionGPSMonitoringNetwork
股道光
(广东省有色地质测绘院,广州510000)
YIN Dao-guang
基础工程设计
Ergiaeering Berigegfie Croe
(Nonferrous Geological Surveying and Mapping Institute ofGuangdong Province, Guangzhou 510000, China)
【摘要】用静态GPS边被监测做实例,通过实测数据,分析研究了不同基线数即网形变化对GPS控制网质量的影响,确定基准站静态GPS市设网形式变形监测是建立高精度GPS滑坡监测网的有效方法,可以景顾精度、可靠性和灵数度及效益的有效统一,结合滑坡及其变形特性、变形蓝测的特点等,分析了GPS测量的有关误差来源及其特性,并从清被GPS变形监测网建立的点位选择、基准网确定以及监测网有关质量指标等关键问题进行理论探讨,体现出GPS监测网的高精度性能。
[Abstract]Paper takes static GPS monitoring ofslope as an example, through the measured data, analyzes the different baseline influence on the GPS control network quality, the base station layout static GPS network forms of deformation monitoring is an effective approach of establishinghigh precision GPS landslide monitoringnetwork, which can take the reliability,accuracy and sensitivity and efficiency ofeffective unification, combined with the characteristics ofthe landslide and its deformation characteristics, defomation monitoring, etc., paper analyzes the error sources and their characteristics of the GPS measurement, and the landslide of GPS deformation monitoring network based point selection, the determination of baseline network, and network related theory, this paper discusses such key problems as quality indicators.
embody the high precision ofGPS monitoring network performance.【关键词]GPS测量误差;变形监测;基准站
[Keywords ]GPS measurement error, deformation monitoring; base station
【中图分类号】TU454
【文献标志码]A
[DOD10.13616/j.cnki.gcjsysj.2017.06.115 1GPS测量误差及提高精度方法分析
GPS测量可全天候作业,操作简单,定位精度高,尤其是观测站间无须通视,能获得点的三维坐标,因此,利用GPS测量方法进行滑坡监测具有明显优势。
GPS网误差来源主要有:与卫星有关的误差、与信号传播【作者简介】股道光(1985~),男,湖北随州人,工程师,从事工程测
量与研究。万方数据
[文章编号】1007-9467(2017)06-0035-03
有关的误差、电离层延迟、对流层延迟、多路径误差、与接收机有关的误差、接收机钟误差、接收机位置误差、关线相位中心漂移、周跳及整周模糊度、相对论效应、观测值线性组合对误差的影响"。
2变形监测网及优化设计方法
变形监测往往由于现场条件限制,滑坡变形监测网点的选择是GPS滑坡变形监测网设计的一个重要问题。网的优化设计是采用数学优化的方法,根据网的用途、精度及密度等指
35