光行差对高轨卫星激光测距的影响分析

随着卫星激光测距技术的发展，高轨卫星激光测距的数据量明显提高。由于高轨卫星距离远回波弱，这就要求望远镜系统能精确地对准卫星目标才能接收到有效回波。首先分析了影响望远镜对准的光行差因素，即卫星运行的速度光行差和发射激光运行引入的光行差。文中以Glonass系列高轨卫星为例，重点研究了发射激光束运行引入的光行差偏移量，并且计算出测站测量Glonass系列卫星的光行差角偏移量为26rad。在实际高轨卫星激光测距中对Glonass系列卫星进行了数十次的测距实验验证，证明了文中对光行差影响的分析是正确的。通过文中的研究可以提高高轨卫星激光测距的捕获机率，大大提高高轨卫星观测效率。

Analysis of aberration effect on high orbit satellite laser ranging

Due to the development of the satellite laser ranging technology, high orbit satellite laser ranging data volume increases significantly, but high orbit satellite has weak echo signal due to the distance, which requires the telescope system to align satellite accurately in order to receive the valuable echo signal. In this paper, the main factors that affecting the telescope to aim were analyzed, namely satellite velocity aberration and flight-time aberration of laser pulse. Based on Glonass series high orbit satellite as an example, the aberration offset was mainly studied, introduced laser operation, and the station measurement of Glonass satellite series aberration angle offset of 26 rad was calculated, and in the actual series of Glonass satellite in high orbit satellite laser ranging dozens of times ranging experiment verification. In this paper, it proved that optical line difference influences analysis is correct. Through the research we can improve the capture probability of high orbit satellite laser ranging and greatly enhance the efficiency of observation.