摘要
采用BERNESE软件"OBS-MAX"和"SHORTEST"两种独立基线生成方式和三种网平差基准定义方法制定出6种GNSS数据后处理方案,分别对中国沿海GNSS业务化观测网2009年与2011年的两批数据处理,并从外符合和内符合精度两个方面进行分析比较。结果表明:采用"OBS-MAX"独立基线生成方式得出的坐标精度更优,尤其是在原始观测数据质量不高的情况下;在网平差基准定义上,采用固定解得出的坐标内符合精度优于最小约束解,但其外符合精度较差。
This paper presents six GNSS data post-processing proposals applying BERNESE softw are combined two independent baseline generation methods ＂OBS-M AX ＂and ＂SHORTEST ＂w ith three network adjustment methods. In the case study of Chinese coastal GNSS operational network,we process the data obtained in the year 2009 and 2011 and then analyze the result from the outer and inner precision. The result show s： coordinates derived from ＂OBS-M AX ＂independent baseline generation method have better precision,especially when the raw GNSS data has low quality; in the network adjustment,fixed solution has a better inner precision compare has minimum constraint solution,but has less accurate outer precision.
出处
《海洋测绘》
CSCD
2015年第1期52-55,共4页
Hydrographic Surveying and Charting
基金
国家973项目(2012CB957704)
国家海洋局GNSS业务化运行项目
科技部国际合作专项(2014DFA1710)
