杨登科;安向东;杨凯钧;

• 1:武汉大学测绘学院
• 2:铁道第三勘察设计院集团有限公司
• 3:武汉大学卫星导航定位技术研究中心
• 4:湖南省国土资源规划院

摘要(Abstract)：

针对跨度较长时间序列共模误差噪声特征研究较少,选择空间滤波的方法对较长时间序列进行分析以满足参考框架建立的需要。选取欧洲地区58个IGS基准站2001—2011年的坐标时间序列,采用区域叠加滤波法、分区区域叠加滤波法和相关系数加权叠加滤波法求取共模误差,并以滤波后时间序列相关系数和残差时间序列标准差为标准对其进行对比分析;进而,利用极大似然估计的方法对每个区域共模误差及滤波前后坐标时间序列进行噪声分析。结果表明:分区区域叠加滤波法最适合欧洲地区共模误差的提取;共模误差主要成分是闪烁噪声,也包含白噪声、随机漫步噪声等;当时间序列长度较长时,N、E方向受共模误差影响较小,可忽略,U方向受共模误差影响较大,需要考虑。

关键词(KeyWords)： GPS坐标时间序列;共模误差;空间滤波;极大似然估计;噪声模型

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(41374033)

作者(Authors): 杨登科;安向东;杨凯钧;

DOI: 10.16251/j.cnki.1009-2307.2017.03.008

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