Android移动终端单频BDS/GPS实时PPP技术研究  

Research on real-time BDS/GPS single-frequency PPP technology for Android mobile terminal

作　　者：李杰 郑作亚[3] 张大众 李得海 谷守周[2] 张涛[5] LI Jie;ZHENG Zuoya;ZHANG Dazhong;LI Dehai;GU Shouzhou;ZHANG Tao(Weihai Real Estate Center of Surveying and Mapping Corporation,Weihai,Shandong 264200,China;Chinese Academy of Surveying and Mapping,Beijing 100036,China;China Academy of Electronicsand Information Technology,Beijing 100041;College of Geomatics,Shandong University ofScienceand Technology,Qingdao,Shandong 266590,China;The First Geodetic Surveying Brigade of NASG,Xi'an 710054,China)

机构地区：[1]威海市房地产测绘中心有限公司,山东威海264200 [2]中国测绘科学研究院,北京100036 [3]中国电子科技集团公司电子科学研究院,北京100041 [4]山东科技大学测绘科学与工程学院,山东青岛266590 [5]国家测绘地理信息局第一大地测量队,西安710054

出　　处：《测绘科学》2019年第3期149-153,共5页Science of Surveying and Mapping

基　　金：国家重点研发计划项目(2016YFB0501405);公益性行业专项(B1503);国家基础测绘科技项目(2016KJ0205);中国第二代卫星导航系统重大专项项目(GFZX0301040308-06);国家重点研发计划课题项目(2016YFB0502105;2016YFB0502101);国家863计划项目(2015AA124001);国家测绘地理信息局科技项目(2016KJ0200;2016KJ0205);中国测绘科学研究院基本科研业务费项目(7771604;7771612)

摘　　要：针对Android移动终端定位精度较差的问题,该文对Android框架结构进行了研究,提出了基于Android移动终端实时BDS/GPS双系统精密单点定位(PPP)方法。利用Android studio 2.2.2、Java语言及JNI技术,对终端GNSS驱动进行开发,成功通过串口读取北斗移动终端RTCM MSM4原始卫星观测数据,并在硬件抽象层进行网络实时差分数据解析、文件读取和输出,最终实现增强定位。在移动终端上运行BDS/GPS实时PPP软件,分析定位结果显示双系统单频精密单点定位精度N、E方向0.6m左右,U方向1.5m左右。Arning at the low positioning accuracy for An droid mobile terminal, the Android frame structure was studied,and the precise point positioning ( PPP) method for BUSZGPS single-frequency based on the Android mobile terminal was proposed in this paper. The terminal (iNSS driver was developed by using the Android studio 2.2.2, JAVA and JNI technology,and the original satellite observation data of the mobile terminal RTCM MSM4 was read successfully through the serial porl,and the network real time differential data “nalysis,file reading and output were carried out in the hardware abstraction layer and PPP was realized.On the mobile terminal. dual-system single-frequency PPP accuracy at N and E direction was about 0. 6 m respectively, and at U direction was about 1.5 m by the BDS/GPS real-time PPP software.

关 键 词：ANDROID 实时精密单点定位 驱动 精度分析 

分 类 号：P228[天文地球—大地测量学与测量工程]