摘要
近几年，西安导航技术研究所生产了新型的GPS定时接收机，它在高频部件、线路结构、电源部件、防震装置和天线水平等方面进行了改进和更新。这种新接收机在上海天文台进行性能测量，并与老型接收机的性能进行比较。测量结果分析表明，新型接收机在信噪比、可靠性、接收缺损率和短期校频精度等方面都比老型接收机有较大提高。这种新型接收机适用于完成野外流动作业的高水平时间同步任务。
Recent years Xian Reseaech Institute of Navigation Technology have produced a new GPS timing receiver, it was improved and renewed in these respect such as the high fuequency parts, the circuit structure, the power parts, the aseismatic installation and the antenna level. etc. The new receiyer are carried out the per formance measurement at Shanghai Ob-servatory (SO), and are compared with the performance of old receiver at SO. The results of measurement and analysis are shown that have made considerable progress in these respect such as the signal - noise rate, the reliability, the receiving lack rate and the clibrating frequency precision of short term etc. than with the old receiver. The new receiver is suitable for a field mobile operation which complete a engineering task of the time symchronization with the high level.
出处
《中国科学院上海天文台年刊》
1998年第19期157-164,共8页
Annals Shanghai Astronomical Observatory Chinese Academy of Sciences
