Results 31 to 40 of about 97,722 (273)
Characterization of GNSS Signals Tracked by the iGMAS Network Considering Recent BDS-3 Satellites
The international GNSS monitoring and assessment system (iGMAS) tracking network has been established by China to track multi-GNSS satellites. A key feature of iGMAS stations is the capability to fully track new navigation signals from the recently ...
Xin Xie+5 more
doaj +1 more source
Equivariant filtering framework for inertial-integrated navigation
This paper proposes an Equivariant Filtering (EqF) framework for the inertial-integrated state estimation. As the kinematic system of the inertial-integrated navigation can be naturally modeled on the matrix Lie group SE 2(3), the symmetry of the Lie ...
Yarong Luo, Chi Guo, Jingnan Liu
doaj +1 more source
A Systematic Review of Machine Learning Techniques for GNSS Use Cases
In terms of the availability and accuracy of positioning, navigation, and timing (PNT), the traditional Global Navigation Satellite System (GNSS) algorithms and models perform well under good signal conditions.
Akpojoto Siemuri+4 more
semanticscholar +1 more source
Assessing IGS GPS/Galileo/BDS-2/BDS-3 phase bias products with PRIDE PPP-AR
Ambiguity Resolution in Precise Point Positioning (PPP-AR) is important to achieving high-precision positioning in wide areas. The International GNSS (Global Navigation Satellite System) Service (IGS) and some other academic organizations have begun to ...
Jianghui Geng, Songfeng Yang, Jiang Guo
doaj +1 more source
GNSS User Technology: State-of-the-Art and Future Trends
Advances in the miniaturization, computational capabilities, and cost reduction of semiconductor technology have made global navigation satellite systems (GNSSs) the favorite choice for positioning.
D. Egea+6 more
semanticscholar +1 more source
A GRU and AKF-Based Hybrid Algorithm for Improving INS/GNSS Navigation Accuracy during GNSS Outage
The integrated navigation system consisting of an inertial navigation system (INS) and Global Navigation Satellite System (GNSS) provides continuous high-accuracy positioning whereas the navigation accuracy during a GNSS outage inevitably degrades owing ...
Yanan Tang+5 more
semanticscholar +1 more source
Principle and performance of multi-frequency and multi-GNSS PPP-RTK
PPP-RTK which takes full advantages of both Real-Time Kinematic (RTK) and Precise Point Positioning (PPP), is able to provide centimeter-level positioning accuracy with rapid integer Ambiguity Resolution (AR).
Xingxing Li+5 more
semanticscholar +1 more source
Sequential Ambiguity Resolution Method for Poorly-Observed GNSS Data
Integer ambiguity resolution is required to obtain precise coordinates for the global navigation satellite system (GNSS). Poorly observed data cause unfixed integer ambiguity and reduce the coordinate accuracy.
Haiyang Li+3 more
doaj +1 more source
The displacement of Global Navigation Satellite System (GNSS) station contains the information of surface elastic deformation caused by the variation of land water reserves.
Yuefan He+3 more
doaj +1 more source
In the fields of positioning and navigation, the integrated inertial navigation system (INS)/global navigation satellite systems (GNSS) are frequently employed.
Shuai Zhao, Yilan Zhou, Tengchao Huang
semanticscholar +1 more source