摘要
激光瞄准系统主要存在的瞄准误差是偏移误差和抖动误差,解决好这两种误差可以使光束能够准确瞄准目标物体,并且在传输过程中减少信号的损失.介绍了一种新的光束瞄准技术,该方法建立在光束远场光强的高斯分布和光束抖动的高斯分布基础上,利用回波信号的统计得到视轴的偏差,精度可以达到5μrad,而且不需要目标自身返回瞄准信息,也无须对目标进行扫描,试验成功验证了这种方法的可行性.
All laser pointing systems are subject to two fundamental pointing errors which are boresight and jitter errors.The beam can be accurately pointed to the target and the signal loss can be reduced during transmission if the effect of the two main pointing errors are mitigated.A new method of the laser pointing system based on a Gaussian far-field irradiance profile and a Gaussian jitter model is proposed,and which can get boresight error using the information of the return optical intensity without the return signal from sensors on the target neither scanning the target and get the error only 5 μrad.The experimental results successfully validated the feasibility of this method.
出处
《光电技术应用》
2010年第2期25-28,共4页
Electro-Optic Technology Application
基金
中国科学院重点实验室预研基金资助课题(A09k002)
关键词
偏差
回波信号
抖动
快速反射镜
瞄准系统
error
return signal
jitter
fast steering mirror（FSM）
pointing system
