脉冲激光测距机最大测程测试方法研究  

Novel method for maximum range measure of pulse laser range finder

作　　者：曾嫦娥[1] 王茜蒨[2] 常岗[3] 单长胜[1] 王强[1] 

机构地区：[1]北京跟踪与通信技术研究所,北京100094 [2]北京理工大学信息科学技术学院,北京100081 [3]中国华阴兵器试验中心,陕西华阴714200

出　　处：《红外与激光工程》2005年第6期664-668,672,共6页Infrared and Laser Engineering

基　　金：国家自然科学基金资助项目(20505002);国家高技术研究发展计划(863-308-14-03)

摘　　要：最大测程是反映脉冲激光测距机性能优劣的主要参数之一。分析了现行激光测距机最大测程指标考核的方法,比较了各种考核方法的利弊。在此基础上提出了一种采用室外消光法与室内时序增益系数比检测相结合的方案进行激光测距机最大测程测试的新方法,并对两具测距机分别进行了室外消光比、室内时序增益系数比、最大测程的测试,对两者的结果进行了对比。最后针对本测试系统的组成进行了误差分析。结果证明,新的检测方法可以客观、真实、准确地测量1.06μm和1.54μm两种波段的脉冲激光测距机的最大测程,测试结果受天气条件和目标特性影响小,也不受脉冲激光测距机增益电路的影响,且测量精度高,重复性好,操作方便可靠。同时还可对激光测距机测程范围、测距精度、选通范围及选通精度、距离分辨率等主要性能参数进行模拟测试。Maximum range is one of the major parameters of pulse laser range finder, Several common measurement methods are analyzed. A novel method combining outdoor light extinction ratio with indoor time sequence gain coefficient ratio is proposed, For two pulse laser range finders, outdoor light extinction ratio, indoor time sequence coefficient and maximum range are measured and compared. The results and error analysis are given. The results prove that the maximum range of the pulse laser range finder whose operating wavelength is 1.06μm and 1.54μm could be measured accurately, and it is hardly effected by weather condition and target properties, nor is effected by time sequence gain circuit. The method has high accuracy, repeatability and serviceability . By this method, other major parameters of the pulse laser range finder such as ranging accuracy, gating range, gating accuracy and range resolution can also be measured.

关 键 词：激光测距机 最大测程 消光比 时序增益系数比 

分 类 号：TN216[电子电信—物理电子学]