摘要
手持GPS标称精度一般在10 m左右,条件比较好的情况下可以达到3 m,实际应用中手持GPS的定位精度还有待提高。几种不同的方案系统地研究了手持GPS的精度,结果表明:四参数与三参数同时改正的情况下坐标精度最高,平面点位误差一般在3 m左右,高程误差一般在5 m左右;四参数与高程拟合参数改正的精度与三参数改正的平面坐标精度差不多,但前者高程测量精度要高一些。
The general accuracy of hand-held GPS was 10 m or so,it could reach 3 m in the better condition. Accuracy of hand-held GPS was still to be improved in the practical application. Accuracy of hand-held GPS was systematically studied by several different schemes. The results showed that the coordinate accuracy was the highest when the four parameters and the three parameters were corrected at the same time. Plane position error was generally about 3 m,elevation error was generally about 5 m; The precision of the four parameters and the elevation fitting parameter were almost the same as that of the three parameters correction. However,the former elevation accuracy was higher.
作者
赵传华
吴智亮
潘山
张洪英
Zhao Chuanhua;Wu Zhiliang;Pan Shan;Zhang Hongying(Shandong Agriculture University College of Information Science and Engineering,Taian 271018,China;Gulin University of Technology College of Geomatics and Geoinformation,Gulin 541006,China;Shandong Lutai Holding Group Co.,LTD Taiping Coal Mine,Jining,272300,China;Jiangsu Food & Pharmaceutical Science College,Huai' an 223003,China)
出处
《矿山测量》
2018年第2期68-71,共4页
Mine Surveying
基金
山东农业大学信息学院青年教师科研骨干培养计划项目(xxxy201705)
国家自然科学基金(41401111)
山东省自然科学基金(ZR2014DQ017)
关键词
手持GPS
单点定位
三参数
四参数
精度分析
hand -held GPS
single point positioning
three parameters
tour parameters
accuracy analysis