Improved GNSS integer ambiguity resolution method based on the column oriented Cholesky decomposition [PDF]
Scientific Reports, 2023 Because the traditional Cholesky decomposition algorithm still has some problems such as computational complexity and scattered structure among matrices when solving the GNSS ambiguity, it is the key problem to further improve the computational ...
Yingxiang Jiao +5 more
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GPS Phase Integer Ambiguity Resolution Based on Eliminating Coordinate Parameters and Ant Colony Algorithm [PDF]
SensorsCorrectly fixing the integer ambiguity of GNSS is the key to realizing the application of GNSS high-precision positioning. When solving the float solution of ambiguity based on the double-difference model epoch by epoch, the common method for resolving ...
Ning Liu +3 more
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Solving Integer Ambiguity Based on an Improved Ant Lion Algorithm [PDF]
SensorsIn GNSS, a double-difference carrier phase observation model is typically employed, and high-accuracy position coordinates can be obtained by resolving the integer ambiguity within the model through algorithmic processing.
Wuzheng Guo +3 more
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Multiple integer candidates ambiguity resolution: a unification ambiguity resolution algorithm
Satellite NavigationAmong all the ambiguity resolution techniques, the Full Ambiguity Resolution (FAR), Partial Ambiguity Resolution (PAR) and Best Integer Equivariant (BIE) estimator are widely used.
Shengfeng Gu, Lizhe Fang, Weiping Jiang
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OFDM-Based Carrier Phase Localization With Integer Ambiguity Resolution
IEEE AccessThis study introduces a two-stage Time Difference of Arrival (TDoA) localization method using OFDM signals with carrier-phase measurements. Unlike conventional methods, our approach uniquely resolves integer ambiguities in carrier-phase signals by ...
Jai Hyung Cho, Jie Hyun Lee
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Improved GNSS Ambiguity Fast Estimation Reduction Algorithm [PDF]
Sensors, 2023 The fast and accurate solution of integer ambiguity is the key to achieve GNSS high-precision positioning. Based on the lattice theory of high-dimensional ambiguity solving, the reduction time consumption is much larger than the search time consumption ...
Xinzhong Li +4 more
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Sequential Ambiguity Resolution Method for Poorly-Observed GNSS Data
Remote Sensing, 2021 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
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Indoor Carrier Phase Positioning Technology Based on OFDM System
Sensors, 2021 Carrier phase measurement is a ranging technique that uses the receiver to determine the phase difference between the received signal and the transmitted signal. Carrier phase ranging has a high resolution; thus, it is an important research direction for
Zhenyu Zhang, Shaoli Kang, Xiang Zhang
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Integer‐ambiguity resolution in astronomy and geodesy [PDF]
Astronomische Nachrichten, 2014 AbstractRecent theoretical developments in astronomical aperture synthesis have revealed the existence of integer‐ambiguity prob‐lems. Those problems, which appear in the self‐calibration procedures of radio imaging, have been shown to be similar to the nearest‐lattice point (NLP) problems encountered in high‐precision geodetic positioning and in ...
Lannes, André, Prieur, Jean-Louis
openaire +3 more sources
Influence of Pseudorange Biases on Single Epoch GNSS Integer Ambiguity Resolution
IEEE Access, 2020 Model strength and biases are two main factors for GNSS integer ambiguity resolution. Due to the nonideal GNSS signal, the receiver's observations will be biased.
Xiaozhou Ye +4 more
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