摘要
根据机载地面测绘对地面分辨力的需要，首先给出了机载扫描激光测距的地面采样点分布的两种轨迹形式，然后着重分析了直线形式扫描轨迹的地面采样点特征以及水平分辨力与有关影响因素之间的关系，并给出地面水平分辨力受波束倾角、扫描速度、激光脉冲重复率、飞行高度、飞行进度等影响，在不影响作业效率的情况下，提高水平分辨力最有效的途径是提高激光脉冲重复率。最后讨论了改善地面水平分辨力的途径，得到了相关结论。
According to the requirement to the ground resolution of the airborne earth mapping,twokindsoftraceofgmundsampledsitesoftheairbornescanninglaserrangefindaregivenfirstly. Then, the characteristics of the ground sampled sites in a straight scanning trace and the relationships between the horizontal ground resolution and some relative affecting factors are emphatically analyzed, the effective method to increase horizontal ground resolution is to increase the repetition rate of laser pulse. Finally, some methods used to improve the horizontal ground resolution are discussed and some relative conclusions are resulted.
出处
《红外与激光工程》
EI
CSCD
1998年第2期37-39,共3页
Infrared and Laser Engineering
关键词
机载扫描测距
激光测距
测距分辨力
Airborne scanning rangefind Laser rangefind Ranging resolution
