Eso Elizabeth, Teli Shivani, Bani Hassan Navid, Vitek Stanislav, Ghassemlooy Zabih, Zvanovec Stanislav
Opt Lett. 2020 Mar 1;45(5):1059-1062. doi: 10.1364/OL.385423.
In this Letter, we develop a novel technique, to the best of our knowledge, to increase the link span ($ {L_s} $L) of a rolling shutter (RS)-based optical camera communications (OCC) system by reducing the spatial bandwidth of the camera in the out-of-focus regions. We demonstrate a 400 m line-of-sight RS-based OCC link, which is to date the longest $ {L_s} $L reported in these systems, and develop a detection method to extract the information out of the video frames, successfully. The proposed system relaxes the condition of a large surface area for the transmitter light source. Consequently, we show that at 400 m $ {L_s} $L and exposure times of 100-80 µs, a data rate of 450 bps is achieved successfully.
在本信函中，据我们所知，我们开发了一种新颖的技术，通过减小相机在失焦区域的空间带宽来增加基于滚动快门（RS）的光学相机通信（OCC）系统的链路跨度（$ {L_s} $L）。我们展示了一条基于视距RS的400米OCC链路，这是迄今为止这些系统中报道的最长的$ {L_s} $L，并成功开发了一种从视频帧中提取信息的检测方法。所提出的系统放宽了对发射光源大表面积的要求。因此，我们表明，在400米的$ {L_s} $L和100 - 80微秒的曝光时间下，成功实现了450比特每秒的数据速率。
