GNSS-based synchronization and monitoring of LEO-PNT onboard time [PDF]
Advances in Space ResearchFor best interoperability, navigation signals transmitted by a positioning, navigation, and timing system in low Earth orbit (LEO-PNT) should be synchronized to the system time scale of an existing GNSS, such as GPS, Galileo, and BeiDou or the Coordinated Universal Time (UTC).
Oliver Montenbruck
exaly +3 more sources
LEO-PNT Feasibility Aspects: Satellite Navigation Payload Size, Weight, and Power Analysis
IEEE AccessLow Earth Orbit (LEO) satellites are expected to improve the robustness and reliability of critical Positioning, Navigation, and Timing (PNT) services by increasing both the efficiency and diversity of Global Navigation Satellite Systems (GNSS). However,
Sanna Kaasalainen, Jaan Praks
exaly +3 more sources
Optimization of a LEO‐PNT Constellation: Design Considerations and Open Challenges
International Journal of Satellite Communications and NetworkingABSTRACT As the satellite launch and manufacturing costs have become affordable, the industrial and academic interest in low‐Earth orbit (LEO) satellites has increased in recent years. With this interest, the concept of LEO‐based positioning, navigation, and timing (LEO‐PNT) has also gained popularity as a complementary and/or ...
Kaan Celikbilek
exaly +3 more sources
A Feasibility Study for Signal-in-Space Design for LEO-PNT Solutions With Miniaturized Satellites
IEEE Journal on Miniaturization for Air and Space Systems, 2022 Peer ...
Jaan Praks +2 more
exaly +6 more sources
Simulations using LEO-PNT systems: A Brief Survey
2023 IEEE/ION Position, Location and Navigation Symposium (PLANS), 2023 Peer ...
Prol, Fabricio S. +6 more
openaire +2 more sources
Receiver architectures for positioning with low earth orbit satellite signals: a survey
EURASIP Journal on Advances in Signal Processing, 2023 Positioning, Navigation and Timing (PNT) are services generally provided by Global Navigation Satellite Systems (GNSS). GNSS reside in medium to high orbital altitudes from the Earth’s surface, resulting in weak signal reception.
Christina Pinell +3 more
doaj +1 more source
Ionospheric Error Models for Satellite-Based Navigation—Paving the Road towards LEO-PNT Solutions
Computers, 2023 Low Earth Orbit (LEO) constellations have ecently gained tremendous attention in the navigational field due to their arger constellation size, faster geometry variations, and higher signal power evels than Global Navigation Satellite Systems (GNSS ...
Majed Imad +4 more
doaj +1 more source
A Survey on IoT Positioning Leveraging LPWAN, GNSS, and LEO-PNT
IEEE Internet of Things Journal, 2023 Abstract: Location data is an important piece of information in many Internet of Things (IoT) applications. Global Navigation Satellite Systems (GNSS) have been established as the standard for large-scale localization. However, the rapidly increasing need to locate IoT devices in recent years has exposed several shortcomings of traditional GNSS ...
Thomas Janssen +3 more
openaire +2 more sources
Definition of Optimal Ephemeris Parameters for LEO-PNT
European Navigation Conference 2024Carlos Gómez Navajas +4 more
exaly +2 more sources
Analysis of Multipath Code-Range Errors in Future LEO-PNT Systems
Engineering Proceedings, 2023 In recent years, low-Earth-orbit (LEO) constellations have been proposed for Positioning, Navigation and Timing (PNT) applications. Moreover, a couple of test satellites have already been launched and many more are scheduled in the near future.
Sibren De Bast +2 more
doaj +1 more source