提出了一种依托智能移动终端实现可见光室内定位的方法，该方法通过终端成像组件获取发光二极管光源标签和图像信息，根据光源间的成像位置关系和图像焦距，利用几何光学成像原理计算终端位置坐标。通过可见光成像定位系统模型和几何光学成像原理建立非线性系统模型，使用改进无损卡尔曼滤波算法完成最终的位置解算，理论仿真和实验系统均验证了所提方法的可行性。数据显示该方法能够实现分米级的高精度室内定位。

A kind of visible indoor location method based on intelligent mobile terminal is put forward. The method can get the light emitting diode light source label and image information through the terminal imaging component. According to the imaging position relationships between light sources and the focal length, geometric optical imaging principle is used to calculate the terminal position coordinates. The nonlinear system is set up by visible light imaging positioning system model and geometric optics imaging principle. The calculation of final position is completed using unscented Kalman filter algorithm. The theoretical simulation and experimental system verify the feasibility of the proposed method. The data shows that the proposed method can realize decimeter-level precision indoor positioning.