空间光通信APT系统的设计与研制  

Design and realization of APT system in space optical communication

作　　者：霍玲军 牛雁军 王朝刚[1] 邵晓红[1] 

机构地区：[1]北京化工大学理学院,北京100029

出　　处：《北京化工大学学报（自然科学版）》2013年第B12期56-60,共5页Journal of Beijing University of Chemical Technology(Natural Science Edition)

摘　　要：设计并研制了一套用于空间光通信的捕获、瞄准、跟踪系统。采用微控制器AT89S52进行电机的运动控制,通过二维扫描转镜的螺旋矩形扫描算法实现扫描功能以完成目标的捕获,利用串口协议实现数据通信,设计了基于OpenCV(open source computer vision library)的图像处理算法实现目标的跟踪控制。该系统整体尺寸为248mm×245 mm×85 mm,总功耗24.55 W,具有集成度高,低功耗,操作简单等优点。结果表明:可以50 s之内完成空间光源法向120°角的扫描和粗追踪定位的性能指标,效果良好。A system for acquisition,pointing and tracking in space optical communication was designed in this paper.AT89S52 processor was used for controlling the movement of the motors,which acceptted data from upper processor via serial port.And the raster-spiral scanning carried out by two-dimensional scanning mirrors was adopted to realize the acquisition of the laser beam.The tracking of the target was achieved by the image processing algorithm based on open source computer vision library （OpenCV）.The equipment possessed high concentration degree,high real-time index and low power consumption,with an overall dimension of 248 mm × 245 mm × 85 mm and a total power consumption of 24.55 W which was easy to operate.The results showed that the system could achieve the scanning range of 120°within 50 s and also met the coarse tracking＇s requirements.

关 键 词：空间光通信 APT AT89S52 OPENCV 

分 类 号：TN929.1[电子电信—通信与信息系统]