摘要
利用TEQC软件对中国沿海GNSS业务化观测系统东部海区20个观测站2009-2015年的GPS连续观测数据进行质量检测,分析多路径效应(MP)与周跳比(o/slps)和信噪比(SNR)的相关性。分析结果表明:受接收机性能老化影响,观测数据质量整体呈下降趋势;多路径效应与周跳比和信噪比存在较强的负相关;观测数据质量对解算结果精度有一定影响,剔除多路径效应较大的卫星观测数据可有效提高解算精度。
In this paper,the quality of GPS continuous observation data from the Chinese coastal GNSS operational observing system during the years 2009-2015 is checked with the TEQC software,and the analysis on the correlation is conducted between muti-path（MP） and cycle slip（o/slps） and signal to noise ratio（SNR）Correlation. The results show that,influenced by the aging effects of receiver performance,the overall quality of observational data shows a downward trend. A strong negative correlation exists between MP and o/slps and SNR,and the quality of observation data will pose effects on the accuracy of calculation results. The precision of the solutionin can be effectively enhanced through eliminating the satellite data with larger multipath effects.
出处
《海洋技术学报》
2017年第2期89-94,共6页
Journal of Ocean Technology
基金
国家国际科技合作专项资助项目--自主星载高度计海面测高在轨绝对定标关键技术研究(2014DFA21710)
国家海洋局GNSS业务运行项目资助
国家自然科学基金资助项目(41406115)
青岛市市南区科技发展资金资助项目(2016-3-015-ZH)
