江苏大学学报（自然科学版）2026，Vol.47Issue(5)：550-556,7.DOI:10.3969/j.issn.1671-7775.2026.05.007
基于图像传感器的室内可见光定位性能界限
Performance limits of indoor visible light positioning based on image sensor
摘要
Abstract
To optimize the parameters of indoor visible light positioning(VLP)system based on image sensors(ISs),the in-depth analysis of the theoretical performance bound of the system was conducted.The multiple light-emitting diodes(LEDs)were employed as transmitters with a camera as receiver.Without prior knowledge of the camera position and orientation,the accurate camera localization was achieved by analyzing the geometric relationship between the positions of LEDs in the world coordinate system and their pixel coordinates on the camera image plane.In the typical indoor environment,the effect of white Gaussian noise on the imaging process was considered,and the Cramér-Rao lower bound(CRLB)for the three-dimensional coordinates and orientation of the camera was derived.The theoretical analysis was verified through the comparison between simulation and experimental data.The results show that the indoor VLP system based on commonly used LEDs and ISs can theoretically achieve the millimeter-level positioning accuracy,and the performance is mainly affected by the distance between the camera and LEDs,the camera focal length,the camera orientation and the number of LEDs.关键词
可见光定位/图像传感器/LED/最大似然估计/性能界限/克拉美罗下界Key words
visible light positioning/image sensor/light-emitting diode/maximum likelihood estimation/performance limits/Cramér-Rao lower bound分类
信息技术与安全科学引用本文复制引用
鲍煦,杨志强,张文策..基于图像传感器的室内可见光定位性能界限[J].江苏大学学报（自然科学版）,2026,47(5):550-556,7.基金项目
江苏省高层次人才培养计划项目(2017-B08037) （2017-B08037）
