| 可见光定位关键技术的研究与展望 |
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| 引用本文： | 吴楠,杨爱英,冯立辉,忻向军. 可见光定位关键技术的研究与展望[J]. 南京气象学院学报, 2017, 9(2): 159-167 |
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| 作者姓名： | 吴楠 杨爱英 冯立辉 忻向军 |
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| 作者单位： | 北京理工大学 光电学院, 北京, 100081;北京理工大学 光电学院, 北京, 100081;北京理工大学 光电学院, 北京, 100081;北京邮电大学 电子工程学院, 北京, 100876 |
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| 基金项目： | 国家自然科学基金（61475094，61675025） |
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| 摘 要： | 室内定位由于在工业生产和日常生活中存在重要的应用价值而成为研究的热点，传统的Wi-Fi、蓝牙等无线定位技术由于电磁干扰和多径效应等原因很难实现高精度的室内定位.经过调制的白光LED在满足照明需求的同时能够传送位置信息，实现室内的高精度定位.首先介绍了可见光定位系统中常用的几种调制方式，对不同调制方式的特点做出比较，提出了一种适用于可见光定位的调制方式；然后，介绍并讨论了可见光定位系统的两种解调方法；之后介绍了几种可见光定位的算法，并对每一种算法的性能进行详细的分析；最后对于可见光定位中存在的问题进行了讨论与展望.
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| 关 键 词： | 室内定位 可见光 调制方式 定位算法 |
| 收稿时间： | 2017-01-03 |
Review on indoor positioning technology based on visible light communications |
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| WU Nan,YANG Aiying,FENG Lihui and XIN Xiangjun. Review on indoor positioning technology based on visible light communications[J]. Journal of Nanjing Institute of Meteorology, 2017, 9(2): 159-167 |
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| Authors: | WU Nan YANG Aiying FENG Lihui XIN Xiangjun |
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| Affiliation: | School of Optoelectronics, Beijing Institute of Technology, Beijing 100081;School of Optoelectronics, Beijing Institute of Technology, Beijing 100081;School of Optoelectronics, Beijing Institute of Technology, Beijing 100081;School of electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876 |
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| Abstract: | Various indoor positioning techniques have been developed and widely applied in both manufacturing processes and people''s lives.Due to the electromagnetic interference and multipath effects,traditional Wi-Fi,Bluetooth and other wireless locating technologies are difficult to achieve high accuracy.Modulated white LED can provide both illumination and location information to achieve highly accurate indoor positioning.In this paper,we first introduce several modulation methods of visible light positioning systems and compare the characteristics of different modulation methods.Then,we propose a viable indoor positioning scheme based on visible light communications and discuss two different demodulation methods.In the following,we introduce several positioning algorithms used in visible light communication system.Finally,the problems and prospects of the visible light communication based indoor positioning are discussed. |
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| Keywords: | indoor positioning visible light modulation format positioning algorithms |
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