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Enabling Distributed Low Radio Frequency Arrays - Results of an Analog Campaign on Mt. Etna

Staudinger, Emanuel and Pöhlmann, Robert and Zhang, Siwei and Dammann, Armin and Giubilato, Riccardo and Sakagami, Ryo and Lehner, Peter and Schuster, Martin J. and Dömel, Andreas and Vodermayer, Bernhard and Fonseca Prince, Andre and Wedler, Armin (2023) Enabling Distributed Low Radio Frequency Arrays - Results of an Analog Campaign on Mt. Etna. In: 2023 IEEE Aerospace Conference, AERO 2023. IEEE. IEEE Aerospace Conference, 2023-03-04 - 2023-03-11, Big Sky, Montana, US. doi: 10.1109/AERO55745.2023.10115553. ISBN 978-166549032-0. ISSN 1095-323X.

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Official URL: https://ieeexplore.ieee.org/document/10115553


Measurement of the red-shifted 21-cm signal of neutral hydrogen, and thus observing The Dark Ages is expected to be the holy grail of 21-cm Cosmology. A Radio-telescope to observe low radio frequency signals is needed, but radio interference on Earth and Earth's ionosphere blocking these signals are limiting science investigations in this field. Hence, such a radio-telescope composed of dozens to hundreds of antennas shall be deployed on the lunar far side. Such arrays are shielded from interference from Earth and Earth's ionosphere blocking very low radio frequencies is not present. Within the Helmholtz Future Topic Project Autonomous Robotic Networks to Help Modern Societies (ARCHES) we developed necessary technologies for autonomous robotic deployment of antenna elements, modular payload box design, and robust radio-localization to enable such distributed low-frequency arrays. In particular the antennas' positions must be determined accurately, such that the array can be operated as phased array. Our developments lead to the execution of an analog-demonstration on the volcano Mt. Etna, Sicily, Italy, in June and July 2022 over the course of four weeks. We successfully demonstrated the autonomous robotic deployment of antenna elements and our decentralized real-time radio-localization system to obtain the antenna element positions. Additionally, we showed a proof-of-concept operation of the phased array comprising four antenna elements: estimating the signal direction of arrival of a radio-beacon with unknown position, and the beamforming capabilities itself, for a carrier frequency of 20 MHz. In this paper, we give insights into our developed technologies and the analog-demonstration on the volcano Mt. Etna, Sicily, Italy. We show results of the successfully executed mission and give an outlook how our developed technologies can be further used for lunar exploration.

Item URL in elib:https://elib.dlr.de/193235/
Document Type:Conference or Workshop Item (Speech)
Title:Enabling Distributed Low Radio Frequency Arrays - Results of an Analog Campaign on Mt. Etna
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Staudinger, EmanuelUNSPECIFIEDhttps://orcid.org/0000-0002-9601-2887UNSPECIFIED
Pöhlmann, RobertUNSPECIFIEDhttps://orcid.org/0000-0001-7362-9406UNSPECIFIED
Zhang, SiweiUNSPECIFIEDhttps://orcid.org/0000-0003-4390-458XUNSPECIFIED
Dammann, ArminUNSPECIFIEDhttps://orcid.org/0000-0002-7112-1833UNSPECIFIED
Giubilato, RiccardoUNSPECIFIEDhttps://orcid.org/0000-0002-3161-3171UNSPECIFIED
Sakagami, RyoUNSPECIFIEDhttps://orcid.org/0000-0002-0149-4378UNSPECIFIED
Lehner, PeterUNSPECIFIEDhttps://orcid.org/0000-0002-3755-1186135237528
Schuster, Martin J.UNSPECIFIEDhttps://orcid.org/0000-0002-6983-3719UNSPECIFIED
Dömel, AndreasUNSPECIFIEDhttps://orcid.org/0000-0003-3694-5201UNSPECIFIED
Fonseca Prince, AndreUNSPECIFIEDhttps://orcid.org/0000-0001-6820-3689146582258
Wedler, ArminUNSPECIFIEDhttps://orcid.org/0000-0001-8641-0163UNSPECIFIED
Date:15 May 2023
Journal or Publication Title:2023 IEEE Aerospace Conference, AERO 2023
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
Keywords:Analog Campaign, Analogue Campaign, Mt. Etna, Radio-Astronomy, Robotics, Wireless Communications, SLAM, Estimation, Signal Processing
Event Title:IEEE Aerospace Conference
Event Location:Big Sky, Montana, US
Event Type:international Conference
Event Start Date:4 March 2023
Event End Date:11 March 2023
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Communication, Navigation, Quantum Technology
DLR - Research area:Raumfahrt
DLR - Program:R KNQ - Communication, Navigation, Quantum Technology
DLR - Research theme (Project):R - Swarm navigation, R - Planetary Exploration
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation > Communications Systems
Institute of Robotics and Mechatronics (since 2013) > Perception and Cognition
Institute of Robotics and Mechatronics (since 2013) > Cognitive Robotics
Institute of Robotics and Mechatronics (since 2013) > Autonomy and Teleoperation
Institute of Robotics and Mechatronics (since 2013) > Mechatronic Systems
Deposited By: Staudinger, Dr.-Ing. Emanuel
Deposited On:23 Jan 2023 16:25
Last Modified:24 Apr 2024 20:54

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