基于Skyhook XPS的一体化混合定位系统  

Hybrid integrative positioning system based on Skyhook XPS

作　　者：邵小东[1] 李强[2] 

机构地区：[1]中国科学院遥感应用研究所,北京100101 [2]宁夏回族自治区测绘局,银川750021

出　　处：《测绘科学》2011年第5期5-7,共3页Science of Surveying and Mapping

基　　金：国家科技支撑计划资助项目(2008BAK50B01)

摘　　要：受多路径误差影响,GPS处于高反射环境下可导致接收机相位失锁,对点位坐标影响高达15cm;室内环境卫星无法锁定,GPS更是不能正常工作。本文引入了Skyhook XPS一体化混合定位系统,综合全球定位系统(GPS)、基站三角塔(Cell Tower Triangulation)和无线宽带(Wi-Fi)三种技术之优势,迅速准确定位。详细介绍了Skyhook XPS的系统架构、部署模式与主要接口函数,并基于SDK开发程序实现定位服务。实验结果表明其首次定位时间快、准确率高、可用性强。在高反射地形地物环境下为GPS采集仪提供有效补充定位服务,为无线终端设备、LBS等提供有效定位信息。Affected by muhipath effects, in a high reflective environment the GPS receiver＇s phase change can not be measured out, point coordinate could deviate up to 15cm; satellites can not be locked indoors, GPS is not working properly. The article intro- duced Skyhook XPS-hybrid integrative positioning system, integrated advantages of Global Positioning System （GPS）, Cell Tower Tri- angulation and Wi-Fi three kinds of technology, to locate quickly and accurately. Skyhook XPS＇ S system architecture, deployment model and the main interface functions were described in detail and a location-based service was achieved based on SDK. Experimental results showed that it＇ s fast Time-To-First-Fix, with high accuracy, and strong availability. In high-reflective terrain environment, the hybrid integrative positioning system would be an effective instrument for GPS and provide effective positioning information and locationbased services for wireless terminals, LBS, etc.

关 键 词：混合定位系统 多路径误差 Skyhook XPS GPS WI-FI 

分 类 号：P228.4[天文地球—大地测量学与测量工程]