Measurement Along the Path of Unmanned Aerial Vehicles for Best Horizontal Dilution of Precision and Geometric Dilution of Precision [PDF]
SensorsIn the zenith-horizon placement for achieving minimum geometric dilution of precision (GDOP), one access node or sensor is positioned along the z-axis, while the remaining nodes are placed symmetrically on a three-dimensional (3D) cone.
Yanwu Ding +3 more
doaj +5 more sources
Weighted Geometric Dilution of Precision Calculations with Matrix Multiplication
Sensors, 2015 To enhance the performance of location estimation in wireless positioning systems, the geometric dilution of precision (GDOP) is widely used as a criterion for selecting measurement units.
Chien-Sheng Chen
doaj +4 more sources
Journal of Information and Telecommunication, 2023 Reconfigurable intelligent surfaces (RISs) are anticipated to constitute a critical component of forthcoming communication networks due to their ability to establish controllable wireless environments.
Abdulrahaman Kh. Alhafid +2 more
doaj +2 more sources
A New Criterion Construction and Verification for GNSS Satellite Selection Based on Near-Real-Time Accuracy [PDF]
SensorsGlobal Navigation Satellite Systems (GNSS) have undergone more than half a century of development and construction, with more than a hundred navigation satellites currently providing precise and reliable positioning, navigation, and timing (PNT) services
Yue Zuo, Yibin Yao, Mingxian Hu
doaj +2 more sources
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
doaj +2 more sources
Research on the Loran-C Pseudorange Positioning Method Based on an Ellipsoidal Geodesic Model and Its Application in Inland Areas [PDF]
SensorsThe Loran-C system employs the spherical hyperbola positioning (SHP) method. However, SHP has three drawbacks in inland regions: first, approximating the Earth’s ellipsoid as a sphere introduces positioning errors; second, hyperbola positioning ...
Ao Gao +6 more
doaj +2 more sources
Dynamic base stations selection method for passive location based on GDOP. [PDF]
PLoS ONE, 2022 For the problem of passive location in mobile cellular network, base stations (BSs) selection can improve positioning accuracy. Through the analysis of base station layout in cellular networks, using Geometric Dilution of Precision (GDOP) as the ...
Sheng Miao, Liang Dong, Jingyu Hou
doaj +2 more sources
Geometric Dilution of Precision for Received Signal Strength in the Wireless Sensor Networks
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, 2019 Geometric dilution of precision (GDOP) is a measure showing the positioning accuracy at different spatial locations in location systems. Although expressions of GDOP for the time of arrival (TOA), time difference of arrival (TDOA), and angle of arrival ...
Wanchun Li, Ping Wei, Hongshu Liao
exaly +2 more sources
Reconstructing Spatial Localization Error Maps via Physics-Informed Tensor Completion for Passive Sensor Systems [PDF]
SensorsAccurate mapping of localization error distribution is essential for assessing passive sensor systems and guiding sensor placement. However, conventional analytical methods like the Geometrical Dilution of Precision (GDOP) rely on idealized error models,
Zhaohang Zhang +3 more
doaj +2 more sources
Geometric dilution of precision of the GNSS for Mars (GNSS FATIMA)
Aviation, 2016 Positioning on Mars is one of the critical aspects of every planetary mission. Current complex planetary exploration systems (orbital and surface) rely on complex navigation and positioning systems, which make these systems complicated, expensive and ...
Jozef Kozar +2 more
doaj +2 more sources