Single-Frequency GNSS Integer Ambiguity Solving Based on Adaptive Genetic Particle Swarm Optimization Algorithm [PDF]
Sensors, 2023 Carrier phase measurements currently play a crucial role in achieving rapid and highly accurate positioning of global navigation satellite systems (GNSS). Resolving the integer ambiguity correctly is one of the key steps in this process.
Ying-Qing Guo +4 more
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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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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
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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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Resolve integer ambiguity based on the global deep grid-based algorithms [PDF]
Scientific Reports, 2023 Grid theory is rather commonly-used through out the research of integer ambiguity. In order to promote the efficiency of computation, it is of great necessity to reduce the correlations of the grid basis through the reduction.
Gang Zhi, Junpeng Shi
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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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RELIABILITY OF THE GPS CARRIER-PHASE FIX SOLUTION UNDER HARSH CONDITION [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022 Once the unknown integer ambiguity values are resolved, the GPS carrier phase observation will be transformed into a millimeter-level precision measurement. However, GPS observation are prone to a variety of errors, making it a biased measurement.
M. I. Mohd Dzukhi +5 more
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Applied Sciences, 2023 Satellite positioning is one of the main navigation technologies in unmanned aerial vehicles (UAVs), the accuracy of which has an important impact on the safety, stability, and flexibility of UAVs.
Guanbin Gao, Le Li, Qinghua Shi, Pei Xie
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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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