摘要
分析了入射激光束光强分布不均匀以及目标对入射激光有脉冲展宽时对目标激光雷达散射截面测量的影响,推导出新的测量方程及激光雷达散射截面测量计算方法并应用于目标实测。结果表明:应用此方法避免了光束不均匀和脉冲展宽等因素对测量结果的影响,提高了激光雷达散射截面的测量精度。
The impacts on laser radar cross section measure are analyzed because of the non-uniformity of the luminous intensity and the incident laser pulse being stretched by the measured target.Considering the two factors,the new measure equation and calculation method of laser radar cross section are derived and applied to the actual targets.The results show that the impacts on measure are avoided by application of this new method because of the non-uniformity as well as the stretched pulse,then the measure accuracy is improved.
出处
《红外与激光工程》
EI
CSCD
北大核心
2008年第1期61-63,68,共4页
Infrared and Laser Engineering
关键词
光散射
激光雷达散射截面
高斯光束
脉冲展宽
Light scattering
Laser radar cross section
Gauss light beam
Pulse stretch
