GPS水准高程异常模型及模型诊断  

The Abnormality Model of GPS Height and Its Diagnosis

作　　者：黄腾[1] 华锡生[1] 岳东杰[1] 

机构地区：[1]河海大学土木工程学院,江苏南京210024

出　　处：《工程勘察》2000年第5期54-56,55,共4页Geotechnical Investigation & Surveying

摘　　要：讨论了 GPS水准测量高程异常模型的建立。根据数据诊断理论 ,对高程异常拟合模型进行分析。研究了对建模作用显著的控制点检验方法 ,使模型达到优化并提高精度。最后 ,结合实例分析表明 ,利用合适的差值模型或二次模型 ,在一定范围内实施 GPS水准跨江高程传递 ,达到 等水准精度是可行的。The fitting abnormality model of GPS height is analyzed by the data\|diagnosis theory. A test method to optimize the model and to enhance the accuracy is given. It is concluded that the GPS height accuracy can be reached at the second\|order leveling for elevation transferring across river with a differential or quadratic fitting model.

关 键 词：GPS水准 差值模型 数据诊断 高程异常 

分 类 号：P228.4[天文地球—大地测量学与测量工程]