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高覆盖摄像机辅助的室内可见光定位算法
Authors
刘俊伟
胡吴瑕
贾松霖
金玲
Publication date
1 January 2022
Publisher
《光通信研究》编辑部
Doi
Cite
Abstract
文章针对可见光定位(VLP)系统提出了一种新颖的非线性摄像机辅助的接收信号强度(nCA-RSS)算法。nCA-RSS算法的基本思想是,同时利用摄像机和光电二极管(PD)分别捕获视觉和强度信息,实现高覆盖和高精度定位。首先,基于单视图几何理论,nCA-RSS算法利用视觉信息来估计可见光的入射角;然后,基于估计的入射角,nCA-RSS算法利用强度信息来确定接收器位置。由于使用了视觉信息,nCA-RSS算法对接收器方向不再限制。此外,基于Levenberg-Marquardt算法,nCA-RSS算法仅使用3个发光二极管(LED)即可实现三维(3D)定位。因此,与透视n点算法相比,nCA-RSS实现了更高的覆盖率。仿真结果表明,在80%以上的室内区域,无论接收器方向如何,nCA-RSS算法对于80%以上的样本可以实现约2.5 cm的定位精度
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Last time updated on 26/01/2023