Results 1 to 10 of about 112 (71)
HDOP and VDOP Analysis in an Ideal Placement Environment for Dual GNSSs [PDF]
Sensors, 2022 Increasing the number of satellites in a global navigation satellite system (GNSS) improves the positioning accuracy and increases availability. However, it reduces the positioning accuracy improvement rate and increases the calculation loads, which can ...
JinHyeok Jang +3 more
doaj +4 more sources
Mathematics, 2023 User equipment (UE) location estimation in emerging 5G/B5G/6G Ultra-Dense Networks (UDNs) is a breakthrough technology in future wireless info-communication ecosystems.
Grigoriy Fokin, Andrey Koucheryavy
doaj +3 more sources
Analysis of a HAPS-Aided GNSS in Urban Areas Using a RAIM Algorithm
IEEE Open Journal of the Communications Society, 2023 The global averaged civilian positioning accuracy is still at meter level for all existing Global Navigation Satellite Systems (GNSSs), and the performance is even worse in urban areas. At lower altitudes than satellites, high altitude platform stations (
Hongzhao Zheng +2 more
doaj +3 more sources
Measurement Along the Path of Unmanned Aerial Vehicles for Best Horizontal Dilution of Precision and Geometric Dilution of Precision [PDF]
SensorsGenshe Chen, Chen Genshe
exaly +2 more sources
Remote Sensing, 2021 To solve the problem of location service interruption that is easily caused by incomplete visual satellite environments such as occlusion, urban blocks and mountains, we propose an altimeter + inertial navigation system (INS) + giant low earth orbit (LEO)
Lvyang Ye +5 more
doaj +1 more source
Remote Sensing, 2021 Positioning accuracy is affected by the combined effect of user range errors and the geometric distribution of satellites. Dilution of precision (DOP) is defined as the geometric strength of visible satellites.
Haomeng Cui, Shoujian Zhang
doaj +1 more source
Extended Geometry and Probability Model for GNSS+ Constellation Performance Evaluation
Remote Sensing, 2020 We proposed an extended geometry and probability model (EGAPM) to analyze the performance of various kinds of (Global Navigation Satellite System) GNSS+ constellation design scenarios in terms of satellite visibility and dilution of precision (DOP) et al.
Lingdong Meng +4 more
doaj +1 more source
Autonomous “Figure-8” Flights of a Quadcopter: Experimental Datasets
Data, 2019 This article describes the data acquired from multiple flights of a custom-built quadcopter. The Quadcopter was programmed to fly a pre-defined “Figure-8” flight path, at a constant altitude.
Srikanth Gururajan, Ye Bai
doaj +1 more source
Implementation and Performance Analysis of Constellation Dynamic Selection in Multi-Constellation RAIM. [PDF]
Micromachines (Basel), 2022 Meng Q, Zhuang Y, Li S.
europepmc +1 more source
GNSS performance enhancement using measurement estimation in harsh environment. [PDF]
PLoS One, 2023 Bong JH, Kim D, Jeong S.
europepmc +1 more source