一种高精度室内定位仿真系统的研究与实现  

Research and Implement of High Precision Indoor Location Simulation System

作　　者：陈诗军[1] 王慧强[2] 陈强[1] 吕宏武[2] 

机构地区：[1]中兴通讯股份有限公司无线预研部,广东深圳440300 [2]哈尔滨工程大学计算机科学与技术学院,黑龙江哈尔滨150001

出　　处：《电子科学技术》2016年第6期710-715,共6页Electronic Science & Technology

基　　金：中兴产学研合作项目(No.2015ZTE01-01-12);国家科技重大专项(No.2016ZX03001023-005);国家自然科学基金项目(No.61370212)

摘　　要：室内环境的复杂性远远高于室外环境,信号的多径传播为室内定位精度提出了极大挑战。本文提出和实现了一种高精度室内定位仿真平台,用于模拟室内高精度定位。该仿真系统首先生成三维可视化的定位空间;其次通过反向射线追踪技术分析射线的直射、折射、反射、绕射过程,获得定位点的径参数;再次完成信号首径检测并测距;最终实现米级定位仿真。实验结果显示系统在多径环境下,以75%的概率定位误差可以达到3米以内。The complexity of the indoor environment is much higher than that of the outdoor environment, and multi-path phenomenon leads to great challenges for the accuracy of location positioning. This paper proposes a new indoor location simulation system to provide a high-precision indoor location simulation toolkit. Firstly, it can generate 3D locating space from architectural drawings or planar graph. Secondly, an inverse ray tracing technique is used to analyze the refraction, reflection and diffraction, and then get the path parameters of destinations. Thirdly, the first-path of signal is detected to compute the distance. Finally, positioning errors can be limited to one or several meters. The experiments results show that the accuracy of indoor location positioning by our toolkit is 1 meter when there is a direct path, and 3 meters else.

关 键 词：室内定位 高精度定位 仿真 信号 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]