基于FFT的可见光通信室内定位系统的设计
The Design of Visible Communication Indoor Positioning System based on FFT
可见光通信 发光二极管 可见光室内定位系统 单片机 快速傅里叶变换 VLC LED visible communication indoor positioning system microprocessor FFT
摘要
文章以白光发光二极管为例,研究了可见光室内定位问题。针对可见光室内定位问题,提出了定位系统的模型,并对定位系统的硬件设计进行了分析。在定位算法方面,提出了一种基于快速傅里叶变换(FFT)算法的信号采集与定位方式,实验证明最大定位误差为14.866 cm,结果表明,此系统可以解决室内定位问题。
Abstract
The paper experimentally demonstrates the indoor positioning in Visible Light Communication (VLC) system based on white light. The paper proposes the model of indoor positioning in VLC system and its hardware design. The paper also introduces a positioning algorithm based on the Fast Fourier Transform (FFT). Meanwhile, we also have done the relevant experiments and get the data which has the maximum error of 14.866 cm. Experimental results show that the system can solve the indoor positioning problem.
岳宗杰, 叶佳林, 王娜, 陈林君, 王施超, 肖纯贤. 基于FFT的可见光通信室内定位系统的设计[J]. 光通信研究, 2019, 45(6): 58. YUE Zong-jie, YE Jia-lin, WANG Na, CHEN Lin-jun, WANG Shi-chao, XIAO Chun-xian. The Design of Visible Communication Indoor Positioning System based on FFT[J]. Study On Optical Communications, 2019, 45(6): 58.