摘要
激光测距系统的最大测程是其主要技术指标和进行系统设计时的主要依据,它随探测目标的性质而发生变化.本文推导并给出了激光测距系统对点目标的实用探测方程.分析了激光远场光束分布对探测能力的影响,并利用所得探测方程对某星载激光测距机的探测能力进行了评估.结果表明由于受到光束质量分布的影响,其探测能力在15.05-20.6 km之间变化.对结果进行了分析和讨论,在不改变系统参量的前提下,如果光束质量为平顶分布,则系统整体探测能力可提高至18.9 km.
Maximum range is one of the major parameters of laser rangefinder and a basic guideline in system design.It will change with the detected goal.The detecting equation of lidar to particle-target was educed in this paper,and it could be used easily in practice.Laser′s far-field distributing affect maximum range.According to the practical detecting equation,the maximum range of a laser rangfinder was estimated,and it changed among 15.05~20.6 km with laser′s far-field distributing.The result was analyzed and discussed.It was found that if laser′s far-field distributing is flat and other parameters of the laser rangefinder is not changed,the system′s maximum range can be improved to 18.9 km.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2011年第4期526-528,共3页
Acta Photonica Sinica
基金
上海市科委重大基础研究项目(No.08dz1400701)资助
关键词
激光测距
最大测程
点目标
远场光束质量分布
Laser rangefinder
Maximum range
Particle-target
Laser far-field distributing
