摘要
本文叙述了用内部光路反馈对激光测距系统的系统延迟进行测量的方法。实测结果表明,上海天文台的人卫激光测距系统在不同方位或高度的状态下,系统延迟值的变化约为3 mm。同时,进行了内光路校准与地面靶校准的比对,两种方法测得的系统延迟值之差为12.6 mm。
This paper describes a method to measure the system delay of Shanghai SLR system by using the internai feedback calibration. The measurements of the system delay in diffe-rent azimuths or elevations are given in Fig. 2 and Fig. 3. It has been shown that the variation of calibrations of our system at different pointing angles of the mount is about 3 mm (r. m. s.). Having compared the internai calibration with the ground target calibration, we obtain the difference between the two calibrations is about 12.6 mm.
出处
《中国科学院上海天文台年刊》
1990年第11期169-173,共5页
Annals Shanghai Astronomical Observatory Chinese Academy of Sciences
