Results 21 to 30 of about 387 (165)
Target Positioning with GDOP Assisted Nodes Selection Algorithm in Wireless Sensor Networks
International Journal of Distributed Sensor Networks, 2014 In wireless sensor networks (WSN), the geometric distribution of anchor nodes has a significant influence on the positioning accuracy. Geometric dilution of precision (GDOP) can be used to measure the positioning precision of the localization system.
Yunzhou Zhang +3 more
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Cooperative Navigation for Heterogeneous Air-Ground Vehicles Based on Interoperation Strategy
Remote Sensing, 2023 This paper focuses on the cooperative navigation of heterogeneous air-ground vehicle formations in a Global Navigation Satellite System (GNSS) challenged environment and proposes a cooperative navigation method based on motion estimation and a regionally
Chenfa Shi +4 more
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Target Cooperative Location Method of Multi-UAV Based on Pseudo Range Measurement
Xibei Gongye Daxue Xuebao, 2019 Based on the locations of several unmanned aerial vehicles (UAVs) and the pseudo ranges to a target, a target cooperative location method is proposed in this paper.
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Analysis of Location Ambiguity, GDOP and Station Layout of Threestation in Multilateration
MATEC Web of Conferences, 2016 In practice, the two-dimensional TDOA source location in the case of three stations would encounter the ambiguity problem of dual solutions. The relationship between distributions of location curve intersections, GDOP and receiving station layout is ...
Xu Zi Li +4 more
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Calculation of Weighted Geometric Dilution of Precision
Journal of Applied Mathematics, 2013 To achieve high accuracy in wireless positioning systems, both accurate measurements and good geometric relationship between the mobile device and the measurement units are required.
Chien-Sheng Chen +3 more
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Preliminary Availability Assessment of Multi-GNSS: A Global Scale Analysis
IEEE Access, 2019 The aim of this paper is to assess the impact of multi-GNSS constellation on positioning calculation in terms of number of available satellites and geometrical distribution in the sky.
Qinghua Zhang +3 more
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The Error Distribution and GDOP in GPS
The Journal of Japan Institute of Navigation, 1988 The author states that the bivariate distribution of the positioning error in Global Positioning Systems (GPS) can be estimated by the covariant matrix deduced from the allocation of satellites. A covariant ellipses of equi-probability contour was drawn by standard deviations and covariance of 100 horizontal positions fixed by a receiver, acquired ...
Akio YASUDA +3 more
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Relation between GDOP and the geometry of the satellite constellation [PDF]
2011 International Conference on Localization and GNSS (ICL-GNSS), 2011 The relationship between Geometrical Dilution Of Precision (GDOP) and maximum volume1 of the polytope2 expanded by the user-satellite unit vectors endpoints has been used for long as an approach to reduce the time that a receiver devotes to the satellite selection process.
Nuria Blanco-Delgado +2 more
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ETP/GDOP behavior study for N-sensors arrays in a multilateration radar system
Iteckne, 2009 In this paper, we evaluated the ETP (Expected Theoretical Precision) and GDOP (Geometric Dilution Of Precision) enhancement related to the number of sensors in a Multilateration radar system.
Iván Antonio Mantilla-Gaviria +3 more
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Effect of Observation Geometry on Short-Arc Angles-Only Initial Orbit Determination
Applied Sciences, 2022 Space-based optical sensors are attracting increasing research attention as they can measure the angle of space targets over large areas, facilitating low-cost, wide-area space target surveillance. Studying the effect of observation geometry on short-arc
Zhao Feng +4 more
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