一种新的GPS变形监测算法及其在东海大桥上的应用  

A Novel Algorithm for GPS Deformation Monitoring and Its Application to Donghai Bridge

作　　者：王永泉[1] 张炎华[1] 张文强 

机构地区：[1]上海交通大学空天科学技术研究院,上海200052 [2]上海华测导航技术有限公司,上海200233

出　　处：《桥梁建设》2007年第5期73-75,79,共4页Bridge Construction

基　　金：国家高技术研究发展863计划(2006AA705320)

摘　　要：在建筑物变形监测中,嵌入GPS实时动态(Real-time Kinematic,RTK)方法的普通双频RTK接收机不能应对基线较长且电离层比较活跃的情况。因此,提出一种基于无电离层三差观测量的扩展Ka1man滤波模型,并通过试验与普通RTK接收机进行比较,证明了其可行性。In the deformation monitoring of buildings, the utilization of common dual frequency receivers in the method of Real-Time Kinematics （RTK）, Global Positioning System （GPS） cannot accommodate the case that the baseline is long and the ionosphere is active. Therefore, an extended Kalman filter model based on the triple-differenced ionosphere-free method is proposed and through the tests, the model is compared with the common RTK receivers and is proved to be feasible.

关 键 词：桥梁观测 GPS监测 扩展Kalman滤波 

分 类 号：U446[建筑科学—桥梁与隧道工程]