摘要
文中提出的附加参数拟合法，解决了利用ＧＰＳ数据进行桥梁高程控制时两岸高程传递的难题，它既避免了两岸未知高程系统差对计算结果的影响，又提高了待求值的精度。实例证明在跨越近４ｋｍ江面时求得的两岸水准点高程的精度可以满足等级水准测量的要求，它对平坦地区的ＧＰＳ桥梁高程测量有一定的参考价值。
A fitting method with Additional parameters for GPS height measurement across rivers is presented.The problem of using GPS data to control the height of a bridge and to transmit the height across a large river is solved with this method.In the process,the effect of systematical differences of the unknown heights at both banks on the computation results is avoided,and the accuracy is also raised.An example of benchmarks about 4 km apart at both banks of a river shows that the requirements for graduate leveling survey are satisfied.
出处
《西南交通大学学报》
EI
CSCD
北大核心
1998年第3期279-283,共5页
Journal of Southwest Jiaotong University
