中文摘要：

针对室内可见光定位采用的三边定位算法普适性不高、定位区域较小的问题,提出了一种四LED加权定位算法。该算法结合室内照明LED布局实际情况,从可见光传输距离短定位精度高的特点出发,将传输距离信息作为加权因子引入定位算法中,提高了定位精度及扩大了定位区域。仿真实验结果表明：提出的定位算法在5 m？5m？3 m的空间区域中可以获得约为18 cm的平均定位误差性能,有效地提高了室内定位精度和系统应用的普适性及鲁棒性。

英文摘要：

Due to some limitations for the applicability and location area of trilateral localization algorithm, a four-LED weighted positioning algorithm is proposed. By utilizing the characteristics of indoor visible light transmission such as the short distance and high positioning accuracy, in the mean time, considering the actual situation of deployment of LED indoor lighting, the transmission distance information as a weighted factor is introduced in the positioning algorithm to improve the positioning accuracy and expands the location area. Simulation results show that the proposed location algorithm is guaranteed to achieve average positioning error below 18 cm in 5 m×5 m×3 m space area, and effectively improve the indoor positioning precision and universality of application and system robustness.