【作者】 鲍勇； 徐爱功； 赵泉华；

【Author】 Bao Yong, Xu Aigong, Zhao Quanhua(School of Geomatics, Liaoning Technical University, Fuxin 123000, China)

【机构】 辽宁工程技术大学测绘与地理科学学院；

【摘要】 GPS水准高程拟合中,如果起算数据中含有粗差,将会导致拟合模型失真,增大所求高程异常的误差。本文将移动曲面拟合模型与有界影响方案抗差估计结合起来,根据它们各自的特点,采用等价权代替先验权,使含有粗差的观测值的权越来越小甚至等于零,从而很好地剔除了粗差,提高了高程异常拟合的精度。更多还原

【Abstract】 In the process of GPS height fitting, if initial numerical data contains the gross error, it will result in model distortion and increase error of height anomaly calculated. This paper combines moving surface model and Robust estimation of bounded impact robust program and adopt Equivalent weight instead of priori weight according to their respective characteristic so that the weight of the observation value including the gross error is more and more small even equal to zero. Thus, we can remove the gross error well and increase the precision of height anomaly fitting.更多还原