A Fast Ambiguity Solution Method for Network RTK Reference Station

被引：3

作者：

Wang Shouhua ^{[1
,2
,3
]}

Wu Lirong ^{[2
,3
]}

You Zhiqi ^{[2
,3
]}

Fu Wentao ^{[3
]}

Ji Yuanfa ^{[2
,3
]}

机构：

[1] Guilin Univ Elect Technol, Coll Informat & Commun, Guilin 541004, Peoples R China

[2] Guilin Univ Elect Technol, Minist Educ, Key Lab Cognit Radio & Informat Proc, Guilin 541004, Peoples R China

[3] Natl Engn Res Ctr Satellite Nav, Positioning & Posit Serv, Guilin 541004, Peoples R China

来源：

JOURNAL OF ELECTRONICS & INFORMATION TECHNOLOGY | 2021年 / 43卷 / 08期

关键词：

Network RTK; Ambiguity resolution; Partial ambiguity fixed; Ionosphere weighted method; ALGORITHM;

D O I：

10.11999/JEIT200059

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Due to the interference of atmospheric factors, the ambiguity resolution of network Real Time kinematic (RTK) reference stations is affected, and when new satellites rise above the preset cutoff height, a longer initialization convergence time is required. A fast ambiguity solution method for Network RTK reference stations is proposed. Firstly, the ionosphere weighting strategy is used to assist the fast resolution of baseline ambiguity. Then, Extended Kalman Filter(EKF) is used to estimate ambiguity floating solution; The partial ambiguity solution method is adopted. Finally, the ambiguities are fixed in combination with Least squares AMBiguity Decorrelation Adjustment(LAMBDA) and RATIO detection. Experiments results show that this method can significantly improve the ambiguity fixation rate of network RTK reference stations and shorten the initialization convergence time.

引用

页码：2324 / 2333

页数：10

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