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Partial Preferences and Ambiguity Resolution in Contextual Defeasible Logic
2011Domains, such as Ambient Intelligence and Social Networks, are characterized by some common features including distribution of the available knowledge, entities with different backgrounds, viewpoints and operational environments, and imperfect knowledge.
Antonis Bikakis, Grigoris Antoniou
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Bootstrapping Added Partial Search Strategy for GNSS Integer Ambiguity Resolution
Advanced Materials Research, 2014Integer least square estimator is known to be optimal in GNSS ambiguity resolution. But it relays on a search in the whole ambiguity space which decreases the computational efficiency. A partial search strategy is proposed in this contribution. The new search is limited in an ambiguity space subset defined by the bootstrapping solution; the search-and ...
Ze Min Wu +3 more
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Increasing GNSS RTK availability with a new single-epoch batch partial ambiguity resolution algorithm [PDF]
GPS Single-epoch Real-Time Kinematic positioning is immune to cycle slips and can be immediately re-initialized after loss-of-lock, providing high availability. This technique requires reliable ambiguity resolution: incorrect ambiguities can cause position errors of several meters, and failed ambiguity resolution reduces availability.
exaly +3 more sources
Ambiguity and conflict in sentencing research: Partial resolution through crime-specific analysis
Journal of Criminal Justice, 1985Prior research on factors influencing sentence severity has produced ambiguous findings. To resolve some of this ambiguity, a crime-specific approach to data analysis is proposed and tested. The research sample consists of 468 convictions resulting from 619 indictments for the crimes of murder, rape, aggravated assault, and robbery.
Belinda Rodgers McCarthy +1 more
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Research on Fast RTK GNSS Algorithm Based on Partial Ambiguity Resolution
2017The key of GNSS RTK algorithm is the fast and reliable double difference integer ambiguity resolution. Currently widely used algorithm is the LAMBDA method based on the ambiguity search algorithm. But the search efficiency of LAMBDA method is gradually reduced with the increase of the degree of ambiguity.
Nannan Hu +4 more
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Model and Data Driven Partial Ambiguity Resolution for Multi-Constellation GNSS
2014The goal of carrier-phase ambiguity resolution is to exploit that the carrier-phase observations start to act as very precise pseudoranges. With the development of modern GNSS (GPS, BDS, Galileo, Glonass), more than 30 satellites are visible, however, it might be impossible to reliably fix all the ambiguities due to the computation time.
Yanqing Hou, Sandra Verhagen
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Reliable partial ambiguity resolution for single-frequency GPS/BDS and INS integration
GPS Solutions, 2016Correctly fixing carrier phase integer ambiguities is a prerequisite to achieve high-precision positioning solutions from global navigation satellite system (GNSS). However, for the single-frequency dynamic users, a low ambiguity resolution (AR) success rate is usually associated with the small number of visible satellites.
Houzeng Han +3 more
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Partial ambiguity resolution considering the multipath effects in a canyon environment
Survey Review, 2023Yi Dong +4 more
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IEEE/ION Position, Location and Navigation Symposium, 2010
This paper evaluates the benefit of the partial availability of GPS satellites with L2C signal capability in estimating the ionospheric delay using the dual-frequency L1/L2 code and phase measurements using real data. Compared to the strategy of estimating one slant ionospheric delay (SID) for each satellite, a simplified single differential zenith ...
Da Wang, Kyle O'Keefe
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This paper evaluates the benefit of the partial availability of GPS satellites with L2C signal capability in estimating the ionospheric delay using the dual-frequency L1/L2 code and phase measurements using real data. Compared to the strategy of estimating one slant ionospheric delay (SID) for each satellite, a simplified single differential zenith ...
Da Wang, Kyle O'Keefe
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2018
Knowledge of differential inter-system biases (DISBs) is critical to integrate observations from mixed GNSS. If the corresponding DISB could be calibrated in advance, only one pivot satellite is sufficient for ambiguity resolution on overlapping frequencies, which is the so-called tight combining (TC) strategy. Considering that GPS and Galileo transmit
Qing Zhao +4 more
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Knowledge of differential inter-system biases (DISBs) is critical to integrate observations from mixed GNSS. If the corresponding DISB could be calibrated in advance, only one pivot satellite is sufficient for ambiguity resolution on overlapping frequencies, which is the so-called tight combining (TC) strategy. Considering that GPS and Galileo transmit
Qing Zhao +4 more
openaire +1 more source

