摘要
杭州湾特大型桥梁首级GPS控制网历经三次测量,有必要对其三期结果进行综合分析。本文结合杭州湾大桥首级GPS控制网三期数据处理,从控制网的尺度、墓准、观测时间、基线解算、网平差等方面探讨了特大型桥梁控制网布设和数据处理方法,采用假设检验的方法对GPS控制网点位进行稳定性分析,给出了多期GPS网方差、协方差阵的提取方法。
Since Hang zhou gulf GPS network for super large bridge has been surveyed in different three times, it is necessary to analyze their data processed for further work. This paper discussed large bridge GPS network design and data processing, such as scale, datum, observation time, baselines processing and network adjustment etc. The hypothesis test method was used to analyze the stability of control points, and the mathematic model of hypothesis test for network exploited. Then the methods to yield variance covariance matrix from multi-session network were given. Finally, the involved problems for large bridge GPS network design data procession were put forward.
出处
《工程勘察》
CSCD
北大核心
2005年第5期51-54,64,共5页
Geotechnical Investigation & Surveying
