一种光栅型激光告警系统设计与实现  

Design and implementation of a grating laser warning system

作　　者：曹俊卿[1] 赵冬娥[1,2] 王志斌[1,2] 张敏娟[1] 张瑞[1] 韩枫[1] 

机构地区：[1]中北大学山西省光电信息与仪器工程技术研究中心,山西太原030051 [2]中北大学仪器科学与动态测试教育部重点实验室,山西太原030051

出　　处：《激光与红外》2015年第1期5-8,共4页Laser & Infrared

基　　金：国际科技合作项目(No.2013DFR10150);国际科技合作项目(No.2012DFA10680);国家自然科学基金仪器专项基金(No.61127015)项目

摘　　要：激光告警系统是用来截获、测量、识别敌方来袭激光信号并实现自动告警的侦查设备，在现代化战场上，准确识别来袭激光的波长和入射方位角，可提升我军的生存率。为准确获取来袭激光的波长和方位角等信息，本论文基于光栅衍射原理，设计了基于 DSP ＋FPGA 的激光告警系统，采用特定的图像处理算法，实现了对来袭激光的准确识别。经试验验证：该系统能有效探测来袭激光波长范围为：800-1500 nm，精度≤10 nm，角度分辨率≤2°。Laser warning system is a type of detection device which is used to capture,measure,identify incoming ene-my laser signal.In the modern battlefield,accurate identification of incoming laser′s wavelength and incident angle can improve the army′s survival ability.To obtain the information of incoming laser′s wavelength and angle,a laser warning system based on digital signal processor and field programmable gate array was designed with the grating dif-fraction theory,and the incoming laser can be accurately identified by using specific image processing algorithm.Sev-eral tests have verified that the system can detect the incoming laser effectively and calculate the wavelength and azi-muth of laser accurately.The wavelength range of the detected laser is from 800 nm to 1 500 nm,and the accuracy is less than 1 0 nm,and the angular resolution is less than 2°.

关 键 词：激光告警 光栅衍射 数字信号处理器 图像处理 

分 类 号：TN247[电子电信—物理电子学]