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.
出处
《工程勘察》
CSCD
北大核心
2000年第5期54-56,55,共4页
Geotechnical Investigation & Surveying
