On the impact of GNSS ambiguity resolution: geometry, ionosphere, time and biases
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Geodesy"
DOI: 10.1007/s00190-017-1084-0
Abstract: Integer ambiguity resolution (IAR) is the key to fast and precise GNSS positioning and navigation. Next to the positioning parameters, however, there are several other types of GNSS parameters that are of importance for a… read more here.
Keywords: gnss; geometry ionosphere; geometry; ambiguity ... See more keywords
Improved pitch-constrained ambiguity function method for integer ambiguity resolution in BDS/MIMU-integrated attitude determination
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Geodesy"
DOI: 10.1007/s00190-018-1182-7
Abstract: AbstractThe initialization is a critical step in the BeiDou Navigation Satellite System and microelectromechanical inertial measurement unit (MIMU)-integrated attitude determination. One of the primary tasks in the initializing process is integer ambiguity resolution. The rapidity… read more here.
Keywords: pitch; integer ambiguity; ambiguity resolution; ambiguity ... See more keywords
Undifferenced ionospheric-free ambiguity resolution using GLONASS data from inhomogeneous stations
Sign Up to like & getrecommendations! Published in 2017 at "GPS Solutions"
DOI: 10.1007/s10291-017-0691-9
Abstract: GLONASS frequency division multiple access signals render ambiguity resolution (AR) rather difficult because: (1) Different wavelengths are used by different satellites, and (2) pseudorange inter-frequency biases (IFBs) cannot be precisely modeled by means of a… read more here.
Keywords: network; ppp; glonass; ambiguity ... See more keywords
Pivot single-difference ambiguity resolution for multi-GNSS positioning with non-overlapping frequencies
Sign Up to like & getrecommendations! Published in 2019 at "GPS Solutions"
DOI: 10.1007/s10291-019-0891-6
Abstract: Ambiguity resolution in real-time kinematic (RTK) positioning is increasingly dependent on the combination of multi-GNSS observations, especially in challenging signal environments such as urban canyon areas. By applying a priori calibration to the receiver-dependent differential… read more here.
Keywords: multi gnss; overlapping frequencies; ambiguity resolution; ambiguity ... See more keywords
Models, methods and assessment of four-frequency carrier ambiguity resolution for BeiDou-3 observations
Sign Up to like & getrecommendations! Published in 2020 at "GPS Solutions"
DOI: 10.1007/s10291-020-01011-z
Abstract: One of the most significant advantages of multiple frequencies is that it can improve the success rate of ambiguity resolution, such as the three-frequency carrier ambiguity resolution (TCAR) method. So far, the global BeiDou-3 navigation… read more here.
Keywords: frequency; beidou; geometry; ambiguity ... See more keywords
A novel constrained ambiguity resolution approach for Beidou attitude determination
Sign Up to like & getrecommendations! Published in 2017 at "Advances in Space Research"
DOI: 10.1016/j.asr.2017.09.027
Abstract: Abstract This paper develops a novel approach to obtain the fixed ambiguity solution with orthonormal constraints for Beidou attitude determination. The approach extends the traditional attitude model by taking the attitude matrix elements as unknown… read more here.
Keywords: beidou attitude; ambiguity resolution; ambiguity; approach ... See more keywords
A novel partial ambiguity method for multi-GNSS real-time kinematic positioning
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Navigation"
DOI: 10.1017/s037346332100059x
Abstract: Recent progress in using real-time kinematic (RTK) positioning has motivated the exploration of its application due to its high accuracy and efficiency. However, poorly-observed satellite data will cause unfixed ambiguities and markedly biased solutions. A… read more here.
Keywords: ambiguity resolution; ambiguity; method; partial ambiguity ... See more keywords
An effective QR-based reduction algorithm for the fast estimation of GNSS high-dimensional ambiguity resolution
Sign Up to like & getrecommendations! Published in 2018 at "Survey Review"
DOI: 10.1080/00396265.2016.1230953
Abstract: To fast estimate high-dimensional ambiguities, we propose a new lattice reduction algorithm based on QR decomposition, which achieves fast integer transformation through an iterative strategy of whole size reduction and the deep insertion of minimum… read more here.
Keywords: reduction; high dimensional; ambiguity resolution; reduction algorithm ... See more keywords
Partial GNSS ambiguity resolution in coordinate domain
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DOI: 10.1080/00396265.2018.1490870
Abstract: Traditionally, if full ambiguity resolution is not successful, partial ambiguity resolution (PAR) will be tried. However, identifying which subset of ambiguities to fix is not easy and is still an open problem. Since the actual… read more here.
Keywords: coordinate domain; ambiguity resolution; partial solution; ambiguity ... See more keywords
Centimeter-level positioning by instantaneous lidar-aided GNSS ambiguity resolution
Sign Up to like & getrecommendations! Published in 2022 at "Measurement Science and Technology"
DOI: 10.1088/1361-6501/ac82dd
Abstract: High-precision vehicle positioning is key to the implementation of modern driving systems in urban environments. Global Navigation Satellite System (GNSS) carrier phase measurements can provide millimeter- to centimeter-level positioning, provided that the integer ambiguities are… read more here.
Keywords: centimeter level; ambiguity; ambiguity resolution; lidar aided ... See more keywords
Efficient Sidelink Identity Detection and Frequency Ambiguity Resolution for LTE-D2D Communications
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Access"
DOI: 10.1109/access.2019.2935505
Abstract: Device-to-device (D2D) communication is a key enabler to facilitate the realization of the Internet of Things (IoT) in which devices directly communicate with each other. One of the major challenges in the D2D network is… read more here.
Keywords: ambiguity resolution; frequency ambiguity; identity detection; d2d communications ... See more keywords