Results 1 to 10 of about 932 (110)
Micromachines, 2022 Global navigation satellite system (GNSS) plays a crucial role in many fields, such as aerospace and transportation. Integrity is the measure of trust used in GNSS positioning especially in safety-critical applications.
Qian Meng, Yuan Zhuang, Shengying Li
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Optimization of Multi-Mission CubeSat Constellations with a Multi-Objective Genetic Algorithm
Remote Sensing, 2023 The increasing demand for low-cost space-borne Earth observation missions has led to small satellite constellation systems development. CubeSat platforms can provide a cost-effective multiple-mission space system using state-of-the-art technology.
Shimeles Demissie Melaku, Hae-Dong Kim
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ISPRS International Journal of Geo-Information, 2017 Multi-constellation global navigation satellite systems (GNSSs) are expected to enhance the capability of precise point positioning (PPP) by improving the positioning accuracy and reducing the convergence time because more satellites will be available ...
Xidong Yu, Jingxiang Gao
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Sensors, 2023 The global navigation satellite system (GNSS) signals are vulnerable to disruption sources, such as signal jamming. This, in turn, can cause severe degradation or discontinuities of the GNSS-based position, navigation, and timing services.
Abdelsatar Elmezayen +3 more
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Welcome to the Global Navigation Multi-Constellation
Engineering, 2021 Peter Weiss
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ACCURACY EVALUATION OF MULTI-GNSS DOPPLER VELOCITY ESTIMATION USING ANDROID SMARTPHONES [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022 The number of smartphone users has increased dramatically as smartphones have become more widely available. The mass-market urgently requires the deployment of low-cost GNSS chips in smartphones to achieve continuous, high-precision velocity and location
Y. Li +6 more
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Reliability Measures in GNSS Multi-constellation Systems
EUROPEAN RESEARCH STUDIES JOURNAL, 2021 peer ...
Gucma, Maciej, Boc, Renata, Waz, Mariusz
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Engineering Proceedings, 2023 Present day GNSS offers a variety of signals from different satellite constellations and at various frequencies. This paper is based on the work conducted in the project SiL 2.0 and will focus on the study of multi-constellation/multi-frequency GNSS ...
Uttama Dutta, Jan Johansson
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Engineering Proceedings, 2023 Global navigation satellite systems (GNSSs) are an integral part of global positioning. However, because GNSS performance is impacted by signal obscuration and the presence of multipath in urban and deep urban environments, it is not accurate, reliable ...
Esther Anyaegbu, Paul Hansen, Bo Peng
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Vertical Protection Level Optimization and Availability Analysis for Advanced RAIM
Frontiers in Energy Research, 2022 With the introduction of global navigation satellite systems (GNSSs) in aviation, there has been increased dependency on GNSS position. Multi-constellation GNSS services and equipment will remain a solution for many aircraft positions in safety.
Ershen Wang +7 more
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