摘要
2016年5月23日至6月16日,我国自主研制的流动卫星激光测距仪在西安进行了试验性观测,本文通过对西安流动SLR站的Ugeos-1卫星定轨以及系统偏差(距离偏差和时间偏差)计算,分析了西安流动SLR站数据质量。结果表明,西安流动SLR站的Lageos-1卫星定轨残差均方差为15.49mm,经系统偏差修正后的残差均方差为7.12mm。西安流动SLR站的激光测距系统性能比较稳定,具有较小的距离偏差和时间偏差,经系统偏差修正后,西安流动SLR站的观测资料精度可以达到亚厘米级。
The mobile satellite laser ranging(SLR)system independently developed by China was used for experimental observation in Xi'an from May 23 to June 16,2016.The data quality of Xi'an mobile SLR station is analyzed by calculating the orbit determination and system deviation(range deviation and time deviation)of Lageos-1 satellite.The results show that the root mean square(RMS)of the residuals of Lageos-1 satellite orbit determination is 15.49 mm,and the RMS of the residuals after system deviation correction is 7.12 mm.The performance of Xi'an mobile SLR station is stable,and the range deviation and time deviation are small.The observation accuracy of Xi'an mobile SLR station can achieve sub-centimeter level after system deviation correction.
作者
秦显平
张丽萍
QIN Xianping;ZHANG Liping(Xi'an Research Institute of Surveying and Mapping,Xi'an 710054,China;State Key Laboratory of Geo-Information Engineering,Xi'an 710054,China)
出处
《测绘科学与工程》
2020年第2期59-62,共4页
Geomatics Science and Engineering
