一种激光定向的多窗口设计

在激光侦察告警等应用领域需要精确测定入射激光的方向。通过对平行激光在光学劈尖上产生等厚干涉条纹的分析，得到了激光入射倾角与条纹间距的关系，提出了利用入射激光在相邻3个光学劈尖上产生干涉条纹的间距来确定激光入射方向的探测模型，并详细论证了该模型的探测原理。给出了一种由9个光学劈尖组成的可实现半球空间激光定向的多窗口设计方案。理论计算表明，该方案切实可行，且在探测精度、反应速度和系统组成等方面与现有的激光定向技术方案相比具有一定的优越性。

Multi-window design for laser orientation measurement

It is necessary to measure laser orientation in some applications such as laser reconnaissance and alarm.Based on the analysis of interference stripes of equal thickness generated by the parallel laser on optical wedge,the relation of the stripe spacing and laser incidence angle is obtained,and a model of determining the laser incidence direction is presented by means of the measurement of spaces between interference stripes on the adjacent three wedges,then the detecting principle of the model is demonstrated in detail.A multi-window design for laser orientation detection is given,which is composed of nine optical wedges and can detect laser incidence angle in hemispheric space.The theoretical calculation shows that the design is feasible.The design has more advantages as compared with the existing ones in some aspects such as detection accuracy,reaction speed and system composition.