Results 171 to 180 of about 843 (194)
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2020 IEEE 3rd International Conference on Electronics and Communication Engineering (ICECE), 2020
The PDOP (Position Dilution of Precision) is a key index used for evaluating the effect of satellite-receiver geometry on the accuracy of positional parameters. In multi-GNSS positioning, the time offsets between different systems can be calculated at system level or user level.
Yunlong Teng
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The PDOP (Position Dilution of Precision) is a key index used for evaluating the effect of satellite-receiver geometry on the accuracy of positional parameters. In multi-GNSS positioning, the time offsets between different systems can be calculated at system level or user level.
Yunlong Teng
exaly +2 more sources
Geometrical Determination of PDOP
Navigation, 1984A method of geometrically determining Position Dilution of Precision (PDOP) is given. The method gives an insight which is lacking in the purely mathematical determination. The method applies to 3-dimensional GPS fixes. With slight modification it can be applied to 2-dimensional GPS fixes, to 2-dimensional hyperbolic fixes, or to 2-dimensional range ...
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RSC Advances, 2013 In this study, we report a facile method to synthesize core–satellite structured Au/Pdop/SiO2/Fe3O4 composite nanoparticles (NPs). Firstly, polydopamine-coated silica/magnetite nanoparticles (Pdop/SiO2/Fe3O4 composites) were synthesized by the combination of a sol–gel process and an in situ polymerization method, in which tetraethyl orthosilica (TEOS ...
Min Zhang, Jing Zheng, Jingli Xu
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Chemical Communications, 2010
Polydopamine film which contains amine groups and phenolic hydroxyl groups exhibits fully reversible, pH-switchable permselectivity for both cationic and anionic redox-active probe molecules.
Bo, Yu +3 more
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Polydopamine film which contains amine groups and phenolic hydroxyl groups exhibits fully reversible, pH-switchable permselectivity for both cationic and anionic redox-active probe molecules.
Bo, Yu +3 more
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A new method for satellite selection with controllable weighted PDOP threshold
Survey Review, 2016With the development of multi-constellation Global Navigation Satellite Systems (GNSS), more and more navigation satellites are available for position determination. Although the increased number of visible satellites can improve the positioning performance, the computational load to track and process signals from all visible satellites will increase ...
Z. Nie, Y. Gao, Z. Wang, S. Ji
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Lecture Notes in Electrical Engineering, 2018
Due to the satellite-launcher-station interactive operation, coupling of PDOP, reliability and maintainability and supportability (RMS), an availability modeling and simulation method of a navigation system is proposed by GSPN, Bayesian network and outage analysis.
Zheng Heng
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Due to the satellite-launcher-station interactive operation, coupling of PDOP, reliability and maintainability and supportability (RMS), an availability modeling and simulation method of a navigation system is proposed by GSPN, Bayesian network and outage analysis.
Zheng Heng
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Functions of retired GEO communication satellites in improving the PDOP value of CAPS
Science in China Series G: Physics, Mechanics and Astronomy, 2009This paper briefly introduces the maneuverable feature of the slightly inclined geosynchronous orbit (SIGSO) satellites under a new control model degraded from the geosynchronous orbit (GEO) communication satellites which will retire as most of the fuel in these satellites has been consumed.
YanBen Han +5 more
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Journal of Applied Ecology, 2005
Summary Global positioning system (GPS) radio‐telemetry has become an important wildlife research technique worldwide. However, understanding, quantifying and managing error and bias in raw GPS radio‐telemetry data sets requires much more work. In particular, error and bias resulting from position (angle away from vertical) and orientation (compass ...
ROBERT G. D'EON, DONNA DELPARTE
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Summary Global positioning system (GPS) radio‐telemetry has become an important wildlife research technique worldwide. However, understanding, quantifying and managing error and bias in raw GPS radio‐telemetry data sets requires much more work. In particular, error and bias resulting from position (angle away from vertical) and orientation (compass ...
ROBERT G. D'EON, DONNA DELPARTE
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An UWB Indoor Positioning Base Station Selecting Method Based on PDOP
2023 IEEE 23rd International Conference on Communication Technology (ICCT), 2023Pinglin Huang +5 more
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ELECTROPHORESIS, 2013
In this article, polydopamine (Pdop) functionalized multiwalled carbon nanotubes (MWCNTs@Pdop) were firstly synthesized and employed as the template for the dispersion of Pt nanoparticles to form Pt/MWCNTs@Pdop hybrid nanocomposite. The characterizations of the Pt/MWCNTs@Pdop were investigated by SEM, transmission electron microscopy, x‐ray diffraction,
Xiaoqian, Liu +6 more
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In this article, polydopamine (Pdop) functionalized multiwalled carbon nanotubes (MWCNTs@Pdop) were firstly synthesized and employed as the template for the dispersion of Pt nanoparticles to form Pt/MWCNTs@Pdop hybrid nanocomposite. The characterizations of the Pt/MWCNTs@Pdop were investigated by SEM, transmission electron microscopy, x‐ray diffraction,
Xiaoqian, Liu +6 more
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