徐宗秋,丁新展,蔚泽然,徐彦田,韩澎涛,庄典

• 1:辽宁工程技术大学测绘与地理科学学院
• 2:中国测绘科学研究院

摘要(Abstract)：

针对BDS三频PPP时间传递精度及其在国际时间比对中应用的可行性问题,基于无电离层影响、几何距离不变以及最小噪声原则构建三频消电离层组合PPP模型。选取2个MGEX测站2019年第14天至第20天共7 d的观测数据,采用WUM精密卫星轨道和钟差,进行BDS三频PPP时间传递实验。研究表明:BDS三频较双频消电离层组合观测值具有更小的观测噪声;以IGS钟差产品时间传递结果为参考,BDS三频和双频PPP时间传递精度分别为0.61 ns和0.75 ns,三频较双频PPP时间传递精度提高了18.67%。研究成果验证了BDS三频PPP在时间传递中的可行性和优势,为推动BDS时间传递应用提供了参考。

关键词(KeyWords)： 精密单点定位;BDS双频;BDS三频;时间传递

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(41504030);; 中国电子科技集团公司第五十四研究所课题项目(KX162600035)

作者(Author): 徐宗秋,丁新展,蔚泽然,徐彦田,韩澎涛,庄典

DOI: 10.16251/j.cnki.1009-2307.2020.05.004

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