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激光雷达是地球大气探测的有利工具,但其向空中发射的强激光束会对空域飞行物存在潜在威胁。为保障激光雷达上空飞行物的飞行安全,提出了一种基于CCD成像探测的激光智能主动规避飞行物的方法,并搭建了一套实验装置。该装置通过触发同步控制CCD实时采集激光雷达激光束方向一定范围的空域图像,再对图像进行降噪、差值和二值化等处理,并判断是否有飞行物在空域范围内,根据处理结果控制激光发射光路中的机械开关打开或者关闭,有效保证了激光雷达的安全运行以及飞行物的安全。
Lidar is a powerful tool for Earth’s atmosphere exploration, but the intense laser beam it emits into the air poses a potential threat to airspace. In order to ensure the flying safety of the flying objects over the Lidar, a method based on the CCD imaging detection to actively flyby the flying objects is proposed, and a set of experimental device is set up. The device realizes real-time acquisition of a certain range of airspace image of a laser radar by triggering a synchronous control CCD, and then performs noise reduction, difference and binary processing on the image and determines whether there are flying objects in the airspace, and according to the processing result Controlled laser emission light path in the mechanical switch is turned on or off, effectively ensuring the safe operation of the laser radar and flight safety.