应用天文研究室知识库

在转发式的卫星测定轨系统中,卫星地面观测站是其重要组成部分,每天不间断产生大量高精度测距数据､气象数据､时间同步等测量数据,这些数据是实现卫星精密测定轨的基础｡因此,地面观测站的数据质量及其可视化显得尤其重要,基于此目的,采用UNIX时间戳算法及vector迭代器技术,利用C++Builder开发一套对卫星地面站观测数据质量分析及其可视化的系统｡在实际应用中表明:此套系统能有效统计､初步筛选数据,发现在观测过程中的数据质量､验证数据记录时存在的问题,更直观地反应各个天线系统的运行情况,提高了观测系统及设备故障排除和维护的效率｡

Satellite ground observation stations are important parts in the system of orbit determination by transfer tracking, they produce a large number of high precision ranging, meteorological and time synchronous measuring data every day, which are the basis for the realization of satellite orbit determination. Therefore, the quality and integrity of the observational data are of particularly importance. A quality analysis and visualization system was developed based on Unix timestamp and Vector iterator technique by using C++ builder. The practical application has shown that this system can be able to give effective statistics and preliminary filtering for observing data, to detect the problem of data quality in the process of observation and to verify the problem of data records. It can reveal the operation of each antenna system visually and improve the efficiency of the observation system and troubleshooting and maintenance of equipment.