在大视场范围内实现任意方向激光探测,且具有结构稳定、响应速度快、低成本等特点,设计了基于维向分离掩膜编码方法的激光方向识别手段.整个探测系统使用6个平窗型探测器.采用了使水平面上二维分离的掩膜方式,利用掩膜与探测角度、距离等关系分析计算激光入射的区域,从而实现探测激光方向.经实验验证,由6个探测器组成的维向分离探测区域可以将上半平面分为最小识别角度为30°的36个区域.再由探测器倾斜照射实验求得,在入射激光最倾斜的条件下探测器最小响应电压是40 mV,可以有效探测并识别激光方向,探测视场为18°～162°之间旋转的空域.%In a big field of view for realizing on any direction of laser detection, simultaneously guaranteed that the structure stable, responds, the low cost and so on, dimensional-separation mask encoding method was designed. The system of laser direction detection uses six even-window detectors, and was constituted in the horizontal plane the dimensional-separation mask way. Using the mask and the detection angle, it might calculate the field of view of the dimensional-separation encoding, thus realized the laser direction. According to the experiment, the laser direction can be calculated by the coding method with six detectors,and the Accuracy of angle can reach 30°. The experiment of laser with incline incidence to the detectors knows, under worst-case laser incline incidence conditions response voltage was more than 40 mV, so the system field of view is the cone zone form 18° to 162°.
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