线阵非成像式激光辐射源定向方法

Method for measuring laser radiation source direction based on one-dimension array detector with non-imaging mode

探测报知激光威胁源的方向是激光告警必不可少的一项技术指标。从激光告警技术发展的角度,提出了一种采用线阵探测器利用非成像方式测定激光辐射源方向的方法。通过将多个线阵探测器在接收系统中进行布局,首先获得激光源在多个不同一维坐标方向上的角度信息;然后利用坐标转换将这些一维角度信息合成相对于接收系统的二维角度信息,最后根据激光源相对于接收系统的物像几何关系,来测定激光辐射源的方向。文中阐述了该方法的原理及基本结构组成,分析了影响定向精度的误差因素,以柱面透镜作为假想光学接收系统,通过光学分析,验证了该方法的可行性。

To acquire the direction information of laser threat source is necessary for laser warning. A new method for measuring laser radiation source direction based on one-dimension array detector with non-imaging mode was put forward from developing laser warning technology. The angular information in multi one-dimension direction was obtained through arrangment of multi one-dimensicn array detector. The angular information in one dimension direction was transformed into angular information in two dimension with coordinates transform. The laser radiation source direction was measured depending on the geometrical relation between object and image. The principle and the essential configuration layout of this method were expatiated on and the relevant factor of influencing measurement precision was analyzed and the feasibility of this method was testified by using optical analysis.