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Instantaneous and controllable integer ambiguity resolution: review and an alternative approach
Journal of Geodesy, 2015In the high-precision application of Global Navigation Satellite System (GNSS), integer ambiguity resolution is the key step to realize precise positioning and attitude determination. As the necessary part of quality control, integer aperture (IA) ambiguity resolution provides the theoretical and practical foundation for ambiguity validation.
Jingyu Zhang +3 more
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Omega Ambiguity Resolution Through Direct Integer Laning
Navigation, 1976In multi-frequency omega navigation systems, it is desirable to have the wide lanes of the beat frequency without sacrificing the higher resolution of the original frequencies. Many schemes are available for doing this such as operation on difference frequencies until the system is within a small lane and then switching to the original frequency. Also,
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The application of several meta-heuristic in DGPS integer ambiguity resolution
2010 International Conference on Information, Networking and Automation (ICINA), 2010In this paper, several meta-heuristic, includes Crossover Tabu Search (CTS), Tabu Search (TS), Genetic Algorithm (GA) and Ant Colony System (ACS) are applied for the integer ambiguity-searching problem (IASP). Given the baseline, those meta-heuristic are proposed to search optimal solution in integer ambiguity space, which is deduced by solving the ...
null Ning Yang, null Xuan Ma
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Carrier Phase Integer Ambiguity Resolution
2017Global Navigation Satellite System (GNSS ) carrier-phase integer ambiguity resolution is the process of resolving the carrier-phase ambiguities as integers. It is the key to fast and high-precision GNSS parameter estimation and it applies to a great variety of GNSS models that are currently in use in navigation, surveying, geodesy and geophysics.
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Improving integer ambiguity resolution for GLONASS precise orbit determination
Journal of Geodesy, 2016The frequency division multiple access adopted in present GLONASS introduces inter-frequency bias (IFB) at the receiver-end both in code and phase observables, which makes GLONASS ambiguity resolution rather difficult or even not available, especially for long baselines up to several thousand kilometers.
Liu, Y. +5 more
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A High-Integrity and Efficient GPS Integer Ambiguity Resolution Method
Navigation, 2003: An efficient method for obtaining the admissible integer ambiguity hypotheses within a probabilistic volume is combined with an integer hypothesis testing method to reduce the convergence time to the GPS carrier-phase integers with high probability. The baseline coordinates, float ambiguities, and their covariance matrices are first estimated using a
M. F. ABDEL-HAFEZ +4 more
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New Approach for Integer Ambiguity Resolution using Interval Analysis
Navigation, 2008: A new algorithm is proposed for resolving the integer ambiguities encountered in GNSS carrier phase observations. The algorithm is based on Interval Analysis, which deals with computations on intervals of numbers instead of crisp numbers. The advantage of optimization algorithms using interval analysis is that they will detect all solutions within a ...
E. DE WEERDT +3 more
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Rapid ambiguity resolution for kinematic gps based on integer constraints
Electronics and Communications in Japan (Part I: Communications), 1996AbstractThe kinematic GPS is a method in which the positioning with an accuracy of several centimeters is realized using continuous tracking by a mobile user for the phase of the carrier sent from the GPS satellite. In the mobile positioning system based on the carrier phase, there exists a phase bias uncertainty (ambiguity) corresponding to the ...
Dun Wang +2 more
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A New Rapid Integer Ambiguity Resolution of GNSS Phase-Only Dynamic Differential Positioning
IEEE Geoscience and Remote Sensing Letters, 2022Xiao Liang +2 more
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