测绘通报 ›› 2017, Vol. 0 ›› Issue (12): 12-15.doi: 10.13474/j.cnki.11-2246.2017.0370

• 学术研究 • 上一篇    下一篇

Android平台下实时BDS+GPS双系统广域差分定位技术研究

李杰1,2, 秘金钟2, 李得海2, 周万振1,2, 祝士杰3   

  1. 1. 山东科技大学, 山东 青岛 266590;
    2. 中国测绘科学研究院, 北京 100830;
    3. 浙江省测绘科学技术研究院, 浙江 杭州 310012
  • 收稿日期:2017-03-17 修回日期:2017-05-24 出版日期:2017-12-25 发布日期:2018-01-05
  • 作者简介:李杰(1986-),男,硕士生,主要研究方向为GNSS广域差分定位。E-mail:uplijie@126.com
  • 基金资助:
    国家重点研发计划课题(2016YFB0502105;2016YFB0502101);国家重点研发计划(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863计划(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(7771604;7771612);基于北斗/GPS的海量终端1-3米级公众位置服务系统研究及应用(2016C31123)

Research on Real-time BDS+GPS Dual Systems Wide Area Differential Location Technology Based Android Platform

LI Jie1,2, BI Jinzhong2, LI Dehai2, ZHOU Wanzhen1,2, ZHU Shijie3   

  1. 1. Shandong University of Science and Technology, Qingdao 266590, China;
    2. Chinese Academy of Surveying and Mapping, Beijing 100830, China;
    3. Zhejiang Academy of Surveving & Mapping, Hangzhou 310012, China
  • Received:2017-03-17 Revised:2017-05-24 Online:2017-12-25 Published:2018-01-05

摘要: 随着智能手机的普及,基于移动智能终端的位置服务应用正在飞速扩张。Android智能终端,因其性价比高而占据了大多数用户市场,但定位精度有待提升。因此,利用广域差分增强技术,提升室内外位置服务精度,成为当前研究热点。本文利用Android studio 2.2.2平台、Java语言及JNI技术,开发了BDS+GPS广域差分定位软件,该软件通过串口读取北斗移动终端原始卫星观测数据,进行差分数据流解析、实时轨道和钟差改正并实现增强定位。在移动终端硬件平台上,运行BDS+GPS实时WAAS软件,分析了定位结果,双系统单频广域定位精度为4 m左右,对于GNSS卫星技术在低成本移动终端位置服务中具有重要应用价值。

关键词: 移动终端, BDS+GPS, 实时广域差分, 精度分析

Abstract: With the popularity of smart phones,location service applications based on mobile intelligent terminals are rapidly expanding.Android intelligent terminal occupies because of its high cost performance and the majority of the user market,but its positioning accuracy needs to upgrade.Therefore,the usage of wide area differential augmentation technology to improve the accuracy of indoor and outdoor location services,has become the current research hotspot.This paper uses the Android studio 2.2.2 platform,Java and JNI technology to develop the BDS+GPS wide area differential positioning software,the software reads satellite observation data of the original BeiDou mobile terminal,analyzes the difference data flow correct real-time orbit and clock, to achieve augmentation positioning through the serial port.In the mobile terminal hardware platform,we run real-time BDS+GPS WAAS software,analyze the positioning results.Single frequency positioning accuracy of double wide area system is 4 meters,and it has important application value in GNSS satellite technology in low cost mobile terminal location service.

Key words: mobile terminal, BDS+GPS, real-time wide area differential, accuracy analysis

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