针对直升机光电系统激光照射精度评估问题,提出一种利用短波红外相机监测激光照射光斑实现计算照射精度的方法。利用合适像元尺寸、波段和灵敏度的红外探测器,合适焦距、视场角的镜头,3m×3m十字靶标和摄像机搭建测试环境,实现机载光电系统激光照射光斑摄像监测与数据记录。根据该监测设备摄取的激光光斑监测视频图像,应用数据处理方法解算出机载光电系统的激光照射精度,并在飞行试验中进行了应用,切实可行。

A method is proposed to evaluate the laser irradiation accuracy of helicopter optoelectronic systems by using a shortwave infrared camera to monitor the laser irradiation spot and calculate the irradiation accuracy. Infrared detector with appropriate pixel size, band and sensitivity, lens with appropriate focal length and field angle, 3m ×3m cross target and camera set up the test environment to realize the laser spot camera monitoring and data recording of the airborne photoelectric system. According to the laser spot monitoring video image captured by the monitoring equipment, the laser irradiation accuracy of the airborne photoelectric system is calculated by using the data processing method, and is applied in the flight test, which is feasible.