Improving the initialization speed for long-range NRTK in network solution mode
Zhang Ming1; Lu JinHu1,2; Bai ZhengDong3; Liu Hui4; Fan ChengCheng5
AbstractInitialization speed is one of the most important factors in network real time kinematic (NRTK) performance. Owing to the low correlation among the error sources of reference stations, it is difficult to fix reference station ambiguities of long-range NRTK quickly. In traditional reference stations ambiguity resolution (AR) methods, baselines are usually solved independently which is called baseline solution (BS) mode in this study. Because the correlations among baselines are not taken into consideration in ambiguities estimation, the AR speed is slow. Generally, tens of minutes or longer time is required to initialize. We propose a network solution (NS) mode approach, in which the correlations among the double-difference ambiguities (DDAs) as well as double-difference ionospheric delays (DDIDs) of different baselines are considered in estimating float ambiguity solutions. Experimental results show that the float ambiguity solutions obtained are more accurate with an improved consistency. Thus, initialization speed is significantly increased by 18% in NS mode.
Keywordinitialization speed network real time kinematic (NRTK) reference station ambiguity resolution (AR) network solution (NS) mode baseline solution (BS) mode
Indexed BySCI
WOS Research AreaEngineering ; Materials Science
WOS SubjectEngineering, Multidisciplinary ; Materials Science, Multidisciplinary
WOS IDWOS:000528220600016
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Document Type期刊论文
Corresponding AuthorLu JinHu
Affiliation1.Chinese Acad Sci, Acad Math & Syst Sci, Inst Syst Sci, Key Lab Syst & Control, Beijing 100190, Peoples R China
2.Beihang Univ, Sch Automat Sci & Elect Engn, Beijing 100191, Peoples R China
3.Tsinghua Univ, Inst Geomat, Beijing 100084, Peoples R China
4.Wuhan Univ, GNSS Res Ctr, Wuhan 430079, Peoples R China
5.Guangxi Zhuang Autonomous Reg Remote Sensing Info, Nanning 530023, Peoples R China
Recommended Citation
GB/T 7714
Zhang Ming,Lu JinHu,Bai ZhengDong,et al. Improving the initialization speed for long-range NRTK in network solution mode[J]. SCIENCE CHINA-TECHNOLOGICAL SCIENCES,2020,63(5):866-873.
APA Zhang Ming,Lu JinHu,Bai ZhengDong,Liu Hui,&Fan ChengCheng.(2020).Improving the initialization speed for long-range NRTK in network solution mode.SCIENCE CHINA-TECHNOLOGICAL SCIENCES,63(5),866-873.
MLA Zhang Ming,et al."Improving the initialization speed for long-range NRTK in network solution mode".SCIENCE CHINA-TECHNOLOGICAL SCIENCES 63.5(2020):866-873.
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