Results 1 to 10 of about 8,400 (138)

Weighted Geometric Dilution of Precision Calculations with Matrix Multiplication [PDF]

open access: yesSensors, 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   +7 more sources

Measurement Along the Path of Unmanned Aerial Vehicles for Best Horizontal Dilution of Precision and Geometric Dilution of Precision [PDF]

open access: yesSensors
In 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   +6 more sources

Calculation of Weighted Geometric Dilution of Precision [PDF]

open access: yesJournal 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   +3 more sources

Analytical evaluation of geometric dilution of precision for three-dimensional angle-of-arrival target localization in wireless sensor networks

open access: yesInternational Journal of Distributed Sensor Networks, 2020
This article focuses on the evaluation of geometric dilution of precision for three-dimensional angle-of-arrival target localization in wireless sensor networks.
Jiao Zhang, Jianfeng Lu
doaj   +2 more sources

Geometric dilution of precision of the GNSS for Mars (GNSS FATIMA)

open access: yesAviation, 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   +3 more sources

A High-Precision Cooperative Localization Method for UAVs Based on Multi-Condition Constraints [PDF]

open access: yesSensors
Global Navigation Satellite Systems (GNSSs) often suffer from significant localization errors in signal-denied environments. Furthermore, the accuracy of multi-UAV cooperative localization is highly sensitive to the relative geometric configuration of ...
Haiqiao Liu   +4 more
doaj   +2 more sources

Efficient near-field localization aided with reconfigurable intelligent surface using geometric dilution of precision

open access: yesJournal 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 Probability Density Function for Minimizing Geometric Dilution of Precision in Location-Aware Wireless Communications [PDF]

open access: yesIEEE Access, 2020
Cellular site planners have long used propagation models for optimizing an architecture deployment strategy. The foundation of these models are a plethora of theoretical results that all contribute to a probabilistic understanding of this phenomenon.
John D. Roth   +2 more
doaj   +2 more sources

Density clustering based fast and stable satellite selection for LEO navigation [PDF]

open access: yesScientific Reports
The rapid deployment of mega low Earth orbit constellations provides unprecedented opportunities for global navigation, but the proliferation of visible satellites creates a critical bottleneck for real-time satellite selection. Existing methods struggle
Zi Lu   +4 more
doaj   +2 more sources

A New Criterion Construction and Verification for GNSS Satellite Selection Based on Near-Real-Time Accuracy [PDF]

open access: yesSensors
Global 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

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