Dear students,
We are pleased to invite you to the seminar
GNSS-based Navigation in Lunar Missions
held by prof. Giovanni B. Palmerini (Sapienza Università di Roma)
Tuesday, April 19th, 13.30 to 16.00 – Lecture Hall
Here is an abstract of the seminar:
Techniques based on GNSS (GPS, Glonass, Galileo, Beidou) are becoming standard for orbital determination in LEO thanks to their capabilities in terms of autonomy, accuracy, cost. There is a clear trend to extend this option to GEO and HEO, up to the missions in the Earth-Moon system. The extension leads to obvious issues about the availability and the strength of the navigation signal, due to the fact that the orbits of interest have altitudes higher than the GNSS sources themselves, and are indeed out of typical GNSS service volume. The knowledge of the dynamic environment and the adoption of novel advanced receivers can help on these issues with significant results, even beyond expectations.
Built on the findings of a study recently completed for ESA, this talk will recall the main characteristics of the problem, discussing the open issues and their possible solutions, up to the recent literature referring to Chinese lunar missions.
