Design and flight results of the VHF/UHF communication system of Longjiang lunar microsatellites.
Journal
Nature communications
ISSN: 2041-1723
Titre abrégé: Nat Commun
Pays: England
ID NLM: 101528555
Informations de publication
Date de publication:
09 07 2020
09 07 2020
Historique:
received:
30
01
2020
accepted:
19
06
2020
entrez:
11
7
2020
pubmed:
11
7
2020
medline:
11
7
2020
Statut:
epublish
Résumé
As a part of China's Chang'e-4 lunar far side mission, two lunar microsatellites for low frequency radio astronomy, amateur radio and education, Longjiang-1 and Longjiang-2, were launched as secondary payloads on 20 May 2018 together with the Queqiao L2 relay satellite. On 25 May 2018, Longjiang-2 successfully inserted itself into a lunar elliptical orbit of 357 km × 13,704 km, and became the smallest spacecraft which entered lunar orbit with its own propulsion system. The satellite carried the first amateur radio communication system operating in lunar orbit, which is a VHF/UHF software defined radio (SDR) designed for operation with small ground stations. This article describes and evaluates the design of the VHF/UHF radio and the waveforms used. Flight results of the VHF/UHF radio are also presented, including operation of the radio, performance analysis of downlink signals and the first lunar orbit UHF very-long-baseline interferometry (VLBI) experiment.
Identifiants
pubmed: 32647144
doi: 10.1038/s41467-020-17272-8
pii: 10.1038/s41467-020-17272-8
pmc: PMC7347839
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
3425Références
Wu, W. et al. Design of Chang’e-4 lunar farside soft-landing mission. J. Deep Space Explor. 4, 111–117 (2017).
Jakhu, R. S. & Pelton, J. N. (eds) in Small Satellites and Their Regulation 13–20 (Springer, 2014).
Burleigh, S. C. et al. From connectivity to advanced Internet services: a comprehensive review of small satellites communications and networks. Wirel. Commun. Mob. Comput. 2019, 17 (2019).
Davoli, F., Kourogiorgas, C., Marchese, M., Panagopoulos, A. & Patrone, F. Small satellites and CubeSats: survey of structures, architectures, and protocols. Int. J. Satell. Commun. Netw. 37, 343–359 (2019).
doi: 10.1002/sat.1277
White, D. et al. Overview of the satellite networked open ground stations (SatNOGS) project. In AIAA/USU Conference on Small Satellites (AIAA/USU, 2018).
UNITEC-1 Development Team. Call for support on tracking and receiving RF signal for first interplanetary university satellite UNITEC-1. Preprint at http://www.unisec.jp/unitec-1/files/text/UNITEC-1operation_en.pdf (2009).
Bendoukha, S. A., Okuyama, K.-i, Bianca, S. & Nishio, M. Control system design of an ultra-small deep space probe. Energy Procedia 100, 537–550 (2016).
doi: 10.1016/j.egypro.2016.10.216
Sawada, K., Chin, M., Usami, N., Kimura, M. & Kubota, A. Structural design of 3D printed spacecraft - ARTSAT2: DESPATCH. Trans. Jpn Soc. Aeronaut. Space Sci. Aerosp. Technol. Jpn 14, Pf_45–Pf_50 (2016).
Moser, H. et al. Manfred Memorial Moon Mission (4M): development, operations and results of a privately funded low cost lunar flyby. In AIAA/USU Conf. Small Satellites (AIAA/USU, 2015).
Edwards, C. D. Jr. et al. Relay communications strategies for Mars exploration through 2020. Acta Astronaut. 59, 310–318 (2006).
doi: 10.1016/j.actaastro.2006.02.038
Li, Y., Chen, Z., Liang, Y., Gu, Y. & Wang, Y. Long March-4B/4C: a low-cost multi-launch solution for micro lunar probe. In 13th IAA Low-Cost Planetary Missions Conference (IAA, 2019).
Severance, M.T., Tate-Brown, J. & McArthur, C.L. NASA education activities on the International Space Station: a national laboratory for inspiring, engaging, educating and employing the next generation. In IAC Meeting (IAC, 2010).
Hu, C. et al. LilacSat-1: a member of QB50 and a new mode amateur radio satellite. In 9th European CubeSat Symposium (VKI, 2018).
Shambayati, S. & Lee, D. K. GMSK modulation for deep space applications. In 2012 IEEE Aerospace Conference (IEEE, 2012).
Laurent, P. Exact and approximate construction of digital phase modulations by superposition of amplitude modulated pulses (AMP). IEEE Trans. Commun. 34, 150–160 (1986).
doi: 10.1109/TCOM.1986.1096504
CCSDS Secretariat. Recommendations For Radio Frequency And Modulation Systems Part 1 - Earth Stations And Spacecraft (CCSDS, 2019).
Moncur, R. & Taylor, J. Small station EME at 10 and 24 GHz: GPS locking, doppler correction, and JT4. Preprint at https://www.physics.princeton.edu/pulsar/K1JT/small_station_eme.pdf (2013).
Simon, M. K. & Wang, C. C. Differential detection of Gaussian MSK in a mobile radio environment. IEEE Trans. Vehicular Technol. 33, 307–320 (1984).
doi: 10.1109/T-VT.1984.24023
Heron, P. SSDV (Slow Scan Digital Video). In 31st Annual AMSAT-UK International Space Colloquium (AMSAT-UK, 2016).