多观测值约束的可见光定位算法

发布时间：2018-03-19 21:07

本文选题：可见光　切入点：室内定位系统　出处：《西安电子科技大学学报》2017年04期 　论文类型：期刊论文

【摘要】：在室内复杂多噪的可见光传输环境中,针对由于传统接收光强检测定位存在的建模不准确而导致定位精度低和成像定位存在的终端位置坐标与姿态角约束信息不足的问题,提出一种多观测值约束的可见光定位算法.该算法首先根据接收光强检测定位与成像定位建立联合定位状态空间模型;据此构造系统观测值与状态值,列出观测方程与状态方程;最后利用无损卡尔曼滤波算法进行求解得到定位结果.仿真实验表明,与接收光强检测定位和成像定位相比,该算法的定位结果均方误差更加逼近克拉美罗下界且可定位概率更高.
[Abstract]:In the complex and noisy indoor visible light transmission environment, due to the inaccurate modeling of the traditional received light intensity detection and positioning, the positioning accuracy is low and the position coordinate and attitude angle constraint information of the imaging location is insufficient. A new visible light location algorithm with multiple observation constraints is proposed. Firstly, a joint localization state space model is established based on the received light intensity detection and imaging localization, and then the system observation and state values are constructed. The observation equation and the state equation are listed, and the localization results are obtained by using the lossless Kalman filter algorithm. The simulation results show that, compared with the received light intensity detection and imaging location, The mean square error of the algorithm is closer to the lower bound of Clemero and the probability of localization is higher.
【作者单位】：信息工程大学信息系统工程学院;
【基金】：国家自然科学基金资助项目(61401513)
【分类号】：TN929.1

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