论文标题
室内3维可见光定位：误差度量和LED布局优化
Indoor 3-Dimensional Visible Light Positioning: Error Metric and LED Layout Optimization
论文作者
论文摘要
我们在室内场景中考虑了基于智能手机摄像头的3维（3D）可见光定位（VLP）。基于量化像素域中的定位模型，我们通过定位函数的部分导数表征3D归一化定位误差度量（NPEM），并评估NPEM的水平和非Horizontal接收器摄像头位置。此外，在水平接收器端子位置下，我们探索了NPEM与发光二极管（LED）细胞布局之间的关系，近似NPEM与相机捕获的LED之间的关系，并根据模拟位置误差评估近似准确性。基于近似结果，我们优化了LED发射器单元格的布局，以最大程度地减少NPEM，假设具有某些距离参数的结构化方形细胞布局。
We consider 3-dimensional (3D) visible light positioning (VLP) based on smartphone camera in an indoor scenario. Based on the positioning model in the quantized pixel-domain, we characterize the 3D normalized positioning error metric (NPEM) through the partial derivative of the positioning function, and evaluate the NPEM for horizontal and non-horizontal receiver camera positions. Moreover, under horizontal receiver terminal position, we explore the relationship between the NPEM and the light-emitting diode (LED) cell layout, approximate the relationship between the NPEM and the number of LEDs captured by the camera, and evaluate the approximation accuracy according to the simulated positioning error. Based on the approximation results, we optimize the LED transmitter cell layout to minimize NPEM assuming structured square cell layouts with certain distance parameters.
