摘要
脉冲激光测距仪的灵敏度是仪器系统内部的探测灵敏度,主要由激光发射系统(发射功率P_t)、接收系统(接收功率P_r)和发射、接收、瞄准三轴平行度等决定,与外部条件无关,它可直接决定其最大测程。 假设图1中激光发射角为θ_t,接收视场角为θ_r,则光束到达R处目标面上的激光功率为P_tK_te^(-αR)。
Extinction ratio test is adopted directly to cheek the sensitivity of pulsed laser rangefinders and the influence of weather and the limilation of terrain are eliminated effectively by analysing the test data and comparing them with its measurement range quantitatively.
出处
《中国激光》
EI
CAS
CSCD
北大核心
1991年第3期222-225,共4页
Chinese Journal of Lasers
关键词
激光测距仪
脉冲激光
消光比
pulled laser rangefinder, sensitivity, extinction ratio
