摘要
本文分析了扫描角度和航高对机载激光雷达的回波功率、信噪比和测距精度的影响。计算表明 ,随航高和扫描角度的增加 ,回波信号功率衰减 ,信噪比降低 ,测距误差增大。
The influences of the scanning and flying-height on the backscattering pulse power, signal to noise ratio (SNR) and ranging accuracy are analyzed. The results indicate that with the increasing the flying-height and scanning angle, the received backscattering power decreases rapidly, the SNR deteriorates seriously and the ranging error increases significantly. In order to reduce the effects of flying-height and scanning angle on performance of airborne lidar, the tentative approaches are proposed.
出处
《光电子．激光》
EI
CAS
CSCD
北大核心
2001年第6期592-595,共4页
Journal of Optoelectronics·Laser
基金
国家"八六三"计划308主题资助项目[863-308-12-01(1)]
关键词
机载激光雷达
信噪比
测距精度
Backscattering
Range finders
Scanning
Signal to noise ratio
