AI Networking Cookbook: Practical recipes for AI-assisted network automation and development
TL;DR
This study proposes a two-step distributed autonomous orbit determination (AOD) and broadcast ephemeris generation framework and demonstrates that the proposed method reduces the broadcast ephemeris user range error (URE) by more than 19% for GRACE-FO satellites and by 44.4% for a multi-satellite LEO constellation compared with the conventional distributed algorithm.
Onboard global navigation satellite system (GNSS) receivers have become the most convenient means to realize autonomous orbit determination and clock estimation for low Earth orbit (LEO) satellites. However, signal outages and blockages in complex space environments cause GNSS observation degradation, which restricts t...
Precise orbit information is generally unavailable to users of noncooperative low Earth orbit (LEO) communication satellites such as Iridium NEXT, making publicly available two-line element (TLE) data the primary source of orbital states. However, TLE-derived orbital-state errors degrade Doppler positioning performance...
High-precision Global Navigation Satellite System (GNSS) services rely on accurate orbit, clock, atmospheric, and hardware-bias corrections generated from reference observations. These products are traditionally derived from terrestrial reference networks, whose performance strongly depends on the density and geographi...
Global navigation satellite systems (GNSSs) suffer from signal blockage and multipath effects in dense urban environments, leading to degraded positioning performance. Low Earth orbit (LEO) satellites provide stronger received signals and larger Doppler variations, making them promising complementary navigation sources...
Low Earth Orbit (LEO) navigation augmentation is widely recognized as a key development for next-generation Global Navigation Satellite System (GNSS), and its performance must be validated using real observations. This paper investigates the contribution of LEO satellites to the enhancement of both BeiDou-3 Navigation...
Low Earth Orbit (LEO) Positioning, Navigation, and Timing (PNT) systems operating in L-band Radionavigation-Satellite Service (RNSS) spectrum are rapidly emerging through both commercial and governmental initiatives. These systems are intended to complement traditional Medium Earth Orbit (MEO) constellations, such as G...
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