CAJ | 학술논문

探测报知激光威胁的方向是激光告警必不可少的一项技术指标.针对目前的告警系统的缺点,提出了一种基柱透镜的高精度激光告警方法,并采用非成像方式对来袭激光进行定向.系统由两个相互垂直的线阵结构组成,线阵结构包括柱透镜组与线阵红外焦平面阵列.告警系统通过来袭激光在线阵焦平面阵列上线斑的偏移量来确定入射激光的水平方位角和俯仰角,从而达到对来袭激光进行定向的目的.文中阐述了该方法的基本理及系统的结构组成,进行了误差分析,并对光学系统进行了仿真实验.实验结果表明:基该方法的激光告警系统的视场角达到±16毅.该方法对激光告警系统在汽车、飞机以及卫星上的应用具有十分重要的指导意义.
탐측보지격광위협적방향시격광고경필불가소적일항기술지표.침대목전적고경계통적결점,제출료일충기주투경적고정도격광고경방법,병채용비성상방식대래습격광진행정향.계통유량개상호수직적선진결구조성,선진결구포괄주투경조여선진홍외초평면진렬.고경계통통과래습격광재선진초평면진렬상선반적편이량래학정입사격광적수평방위각화부앙각,종이체도대래습격광진행정향적목적.문중천술료해방법적기본리급계통적결구조성,진행료오차분석,병대광학계통진행료방진실험.실험결과표명:기해방법적격광고경계통적시장각체도±16의.해방법대격광고경계통재기차、비궤이급위성상적응용구유십분중요적지도의의.
Acquiring the direction information from the laser threat is one of the most crucial techniques of laser warning. This paper focused on a novel method which based on cylindrical lens and measuring laser incident direction with non-imaging mode to acquire the direction information. The laser warning system was composed of two perpendicular linear array devices, each of which included a cylindrical lens group and a linear IRFPA. The laser incident direction was defined by azimuth and pitch angle which could be calculated by the offset of line spot in the IRFPA. The principle of this method, the structure of laser system, the error analysis were mainly discussed in this paper. And a simulation was made in the end. The simulation result shows that this new kind of laser warning system can achieve pitch angle of ±16ois valuable for applying laser warning system on motor vehicles, planes and satellites.