基于双CCD探测的外场高精度激光光斑测试技术

Technology of high precision test for laser spot based on double CCD detection in the outfield

激光光斑成像质量是激光制导武器的重要指标之一,为了考核该指标的符合性,分析了通用激光光斑测试技术的优缺点,针对影响外场激光光斑测试精度的几个因素,提出解决外场测试过程中的有效途径。针对应用中的测试需求,采用非接触式的间接测量方法,设计了基于双CCD探测的外场高精度激光光斑测试系统,该系统具备记录保存光斑并进行图像处理、实时监控、解算激光编码及误差值、镜前空间能量密度变化和激光脉冲漏散率等功能,具有测试动态范围大、分辨率较高、抗外界干扰性强、使用方便等特点,能够实现外场高精度的激光光斑测试与分析评估。通过外场的测试应用与分析,该测试系统解决了外场激光光斑测试中的问题,在外场靶试过程中发挥出了重要的作用。

The laser spot image quality is one of the important index of laser guided weapons. In order to check the index, the advantages and disadvantages of general laser spot testing technology were analyzed. According to the several factors affecting the test precision field of laser spot, a testing system of high accuracy laser spot outfield detection based on the double CCD with the indirect method of non- contact type was designed. The system had various functions like recording the spot and image processing, real-time monitoring, calculation of laser coding and error value, spatial variation of energy density foward lens and the laser pulse leakage rate and other functions. It also had characteristics of testing large dynamic range, high resolution, anti external interference was strong, easy to use etc. It can do the test and analysis of laser facula evaluating field with high precision. The test system can solve the problems in the field of laser spot test through the test analysis and application of the external field,it have played an important role in the process of the field test outdoor.