基于异常误差补偿的多期水准网动态平差  

Dynamic Adjustment of Levelling Network Based on Error Compensation

作　　者：聂建亮[1] 郭春喜[1] 田婕[1] 刘瑞春[2] 刘晓云[1] 李秀明 张海平[3] NIE Jianliang;GUO Chunxi;TIAN Jie;LIU Ruichun;LIU Xiaoyun;LI Xiuming;ZHANG Haiping(Geodetic Data Processing Centre,National Administration of Surveying,Mapping and Geoinformation of China,Xi'an 710054,China;Earthquake Administration of Shanxi Province,Taiyuan 030021,China;Institute of Land Surveying and Mapping of Shandong Province,Jinan 250102,China)

机构地区：[1]国家测绘地理信息局大地测量数据处理中心,陕西西安710054 [2]山西省地震局,山西太原030021 [3]山东省国土测绘院,山东济南250102

出　　处：《地理信息世界》2019年第2期49-51,59,共4页Geomatics World

基　　金：国家自然科学基金项目(41574003;41774004;41474015;41604001);科技基础性工作专项重点项目(2015FY210400);中国地震局地震预测研究所基本科研业务费专项(2017IES010103);陕西地理信息局科技创新专项基金项目(2018-4);国家测绘地理信息局基础测绘科技计划项目(2017KJ0205);现代工程测量国家测绘地理信息局重点实验室开发基金(TJES1504)资助

摘　　要：针对水准网中的异常误差,采用函数模型异常误差补偿方法抑制其影响,提高水准网平差精度。首先采用最小二乘方法获得各观测值残差,通过假设检验确定异常误差位置;将异常误差作为待估参数进行解算;最后扣除异常误差,利用"干净"观测数据进行平差获取水准网点的高程与垂直运动速度。采用山东省两期二等水准网观测数据进行试验,该方法进一步提高了水准网平差的可靠性。In this article,an approach of error compensation for the function model is used to control the influences of levelling anomalies and to improve the accuracy of levelling network.Firstly residuals of observations are obtained by least square approach,then the levelling anomalies are positioned by hypothesis testing.Then levelling anomalies as parameters to be estimated are resolved.After deleting levelling anomalies,the height and velocity can be obtained by adjustment of levelling network.The second order levelling network in Shandong province has been employed to test the algorithm.Results show that our approach helps increase the reliability of adjustment of levelling network.

关 键 词：异常误差 异常检验 水准网 动态平差 

分 类 号：P207.2[天文地球—测绘科学与技术]