测控网误差分布几何特征与最小二乘平差-EMD方法  

Geometric Characters of Measure Control Grid Error Distribution and Least Squares Adjustment-EMD Method

作　　者：卿熙宏[1] 许君一[1] 冯爱林[2] 陶华学[1] 

机构地区：[1]山东科技大学地球信息科学与工程学院,山东青岛266510 [2]大庆油田有限责任公司采油一厂,黑龙江大庆163000

出　　处：《山东科技大学学报（自然科学版）》2008年第2期32-38,共7页Journal of Shandong University of Science and Technology(Natural Science)

基　　金：国家自然科学基金项目(40174003)

摘　　要：根据误差控制单纯形分析了具有误差控制的测量点集合的几何特性;通过置信区间给出了误差控制单纯形范围内确定典型集的方法;通过误差分布几何特性和EMD方法给出了GPS测控网的误差纠正方法。实验表明:误差在±15 m的三角测控网通过大约200个样本点可实现误差不超过33 cm的GPS准确定位。According to the error control simplex the geometric characters of the measurement point set of error control are analyzed. Through the confidence interval the determination method of the model set in the range of error control simplex is proposed. The error correcting method of GPS measurement control grid is given through geometric characters of error distribution and EMD. Experiments show that the method can realize the exact positioning in the range of less than 33 cm through about 200 measurement points for the error between -15 m to ＋15 m in GPS triangle measurement control grid.

关 键 词：测量 几何特征 最小二乘平差 EMD 

分 类 号：P207.2[天文地球—测绘科学与技术]