16 citations · 20 across the 7 of their papers we have counts for
4 papers · 1 filter
Trade-off Analysis for Lunar Augmented Navigation Service (LANS) Constellation Design
Keidai Iiyama, Grace Gao
The establishment of a sustainable human presence on the Moon demands robust positioning, navigation, and timing (PNT) services capable of supporting both surface and orbital opera…
Ionospheric and Plasmaspheric Delay Characterization for Lunar Terrestrial GNSS Receivers with Global Core Plasma Model
Keidai Iiyama, Grace Gao
Recent advancements in lunar positioning, navigation, and timing (PNT) have demonstrated that terrestrial GNSS signals, including weak sidelobe transmissions, can be exploited for…
Ephemeris and Almanac Design for Lunar Navigation Satellites
Keidai Iiyama, Grace Gao
This paper presents almanac and ephemeris message representation for lunar navigation satellites supporting the Lunar Augmented Navigation System (LANS). The proposed method combin…
Satellite Autonomous Clock Fault Monitoring with Inter-Satellite Ranges Using Euclidean Distance Matrices
Keidai Iiyama, Daniel Neamati, Grace Gao
To address the need for robust positioning, navigation, and timing services in lunar environments, this paper proposes a novel onboard clock phase jump detection framework for sate…