基准站分布对航空重力测量精度影响分析  

Analysis of influences caused by reference station distribution to the accuracy of airborne gravity survey

作　　者：尹伟言[1] 陈真[1] 聂晶[1] 陈小英[1] 赵鑫[2] YIN Weiyan;CHEN Zhen;NIE Jing;CHEN Xiaoying;ZHAO Xin(The First Geodeic Surveying Brigade of SBSM,Xi’an 710054,China;Research Institute of Standards of SBSM,Xi’an 710054,China)

机构地区：[1]国家测绘地理信息局第一大地测量队,陕西西安710054 [2]国家测绘地理信息局测绘标准化研究所,陕西西安710054

出　　处：《测绘工程》2018年第12期8-12,共5页Engineering of Surveying and Mapping

摘　　要：GPS基准站的布设位置对航空重力测量精度有较大的影响。文中介绍航空重力测量中基准站布设的一般原则,结合2016年航空重力实测数据,分析距离测区600km的基准站和测区内的基准站对航空重力测量中运动载体位置、速度、重力异常、交叉点不符值的影响,为实际作业中GPS基准站位置选择和未来大规模开展航空重力生产和研究提供参考依据。GPS reference station distribution has a large effect on accuracy of airborne gravity survey.Reference station setup principles are introduced briefly.Combined with 2016 airborne gravity survey data,this paper analyzes the influences caused by different reference station distribution(about 600km away from the area and in the area)on the accuracy of airborne gravity survey from the position,velocity,the gravity anomaly and intersection discrepancy,which can provide a reference for GPS reference station location selection and large-scale airborne gravity production.

关 键 词：航空重力 基准站分布 重力异常 交叉点不符值 

分 类 号：P228[天文地球—大地测量学与测量工程]