Three-dimensional light positioning algorithm with filtering techniques for indoor environments

被引：49

作者：

Gu, Wenjun ^{[1
]}

Zhang, Weizhi ^{[1
]}

Kavehrad, Mohsen ^{[1
]}

Feng, Lihui ^{[2
]}

机构：

[1] Penn State Univ, Dept Elect Engn, University Pk, PA 16802 USA

[2] Beijing Inst Technol, Sch Optoelect, Beijing 100081, Peoples R China

来源：

OPTICAL ENGINEERING | 2014年 / 53卷 / 10期

基金：

美国国家科学基金会;

关键词：

indoor navigation; visible light communication; light-emitting diodes; Kalman filter; particle filter;

D O I：

10.1117/1.OE.53.10.107107

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

This paper introduces an indoor positioning system based on visible light communication technology with three-dimensional positioning capability. Light-emitting diodes are employed as transmitters, with photodiodes as receivers to obtain the received signal strength (RSS) information. Based on the trilateration technique, the proposed algorithm is able to calculate horizontal coordinates of the receiver with RSS information, after which the height of the receiver is estimated. The system does not require other measurements such as time-of-arrival or angle-of-arrival, thus system design and costs are simplified and minimized. Basic framed slotted ALOHA is applied as the channel access method to enable asynchronous transmissions. In addition, Kalman and particle filters are used in order to realize target tracking. Results show that both filters help to increase the positioning accuracy and the particle filter exhibits a better performance than the Kalman filter, with a higher computational complexity. (C) 2014 Society of Photo-Optical Instrumentation Engineers (SPIE)

引用

页数：11

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