摘要
针对当前室内外无缝连续定位问题,基于北斗空间导航信号特征,并结合WLAN室内定位中的Radio Map的思想,提出了一种基于北斗终端的室内外无缝导航定位系统,使现有的北斗导航终端只需要经过软升级,即可实现室内外无缝定位。仿真结果表明,在空旷室内环境与复杂室内环境下,均达到了2 m的定位精度(1σ),且在室内外过渡中保证了定位的连续性。本系统为解决北斗导航系统全域覆盖问题提出了一种可行的技术思路。
In view of the problem of indoor and outdoor seamless position,with the characteristics of Beidou navigation signal combined with the Radio Map ideas in the WLAN indoor position,the paper proposes an indoor and outdoor seamless navigation and position system based on Beidou terminal. The existing Beidou terminal can realize the function of indoor and outdoor seamless position just through soft-upgrade. Simulation results show that the position accuracy of this system reaches 2 meters both in the outdoor open environment and indoor complex environment. Moreover,the continuity of indoor and outdoor position is guaranteed. The system provides a technical way to solve the problem for global coverage of Beidou navigation system.
出处
《无线电工程》
2016年第8期38-42,共5页
Radio Engineering
基金
国家高技术研究发展计划("863"计划)基金资助项目(2015AA124001)
国家国际科技合作专项基金资助项目(2013DFA10540)
关键词
北斗卫星导航系统
室内外无缝定位
指纹节点
互相关干扰
Beidou satellite navigation system
indoor and outdoor seamless positioning
fingerprint minutia
crosscorrelation interference
