Automated Ground Station Design for an Amateur LEO Satellite System

Lipika Garg, Atharva Kand, Malhar Pradhan, Abhishek Agarwal

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper describes the RF architecture and automated functioning of the Ground Station of a 2U nano-satellite. The satellite utilizes the UHF band for payload transmission and the VHF band for both satellite uplink as well as beacon downlink. Hence, the station has been set up to have reception capability for the VHF and UHF amateur radio frequency bands. The ground station hardware architecture has been described along with the specification of the components used. The intent behind the automation of the ground station is to enable data collection and satellite tracking during off hours. At the ground station, Doppler shift correction and the control of the Yagi Uda antennas via the rotor control during a satellite pass is automated for continuous data reception. The radio, chip transceiver and rotor control setup are all interfaced to a dedicated PC via a UART line. The PC also hosts third-party software required for reception and decoding. This includes the satellite tracking software, audio recorder and decoder. The specification of the software above and their automation capabilities have been discussed. The ground station functioning was verified by receiving and decoding beacon data from other nanosatellites transmitting on the same amateur radio frequency bands, at heights comparable to the LEO height. The paper also includes the link budget calculations and the subsequent link margin determination. The reception of the beacon and raw data bits from the satellite using a Radio and CC1101 transceiver chip respectively and its subsequent decoding on the computer has been described. It includes all necessary calculations and diagrams.

Original languageEnglish
Title of host publication2019 IEEE Aerospace Conference, AERO 2019
PublisherIEEE Computer Society
ISBN (Electronic)9781538668542
DOIs
Publication statusPublished - 01-03-2019
Externally publishedYes
Event2019 IEEE Aerospace Conference, AERO 2019 - Big Sky, United States
Duration: 02-03-201909-03-2019

Publication series

NameIEEE Aerospace Conference Proceedings
Volume2019-March
ISSN (Print)1095-323X

Conference

Conference2019 IEEE Aerospace Conference, AERO 2019
CountryUnited States
CityBig Sky
Period02-03-1909-03-19

Fingerprint

ground stations
low Earth orbits
beacons
Satellites
decoding
satellite tracking
Decoding
transmitter receivers
automation
computer programs
radio
Transceivers
Frequency bands
rotors
specifications
radio frequencies
Automation
Rotors
Yagi antennas
chips

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Space and Planetary Science

Cite this

Garg, L., Kand, A., Pradhan, M., & Agarwal, A. (2019). Automated Ground Station Design for an Amateur LEO Satellite System. In 2019 IEEE Aerospace Conference, AERO 2019 [8741830] (IEEE Aerospace Conference Proceedings; Vol. 2019-March). IEEE Computer Society. https://doi.org/10.1109/AERO.2019.8741830
Garg, Lipika ; Kand, Atharva ; Pradhan, Malhar ; Agarwal, Abhishek. / Automated Ground Station Design for an Amateur LEO Satellite System. 2019 IEEE Aerospace Conference, AERO 2019. IEEE Computer Society, 2019. (IEEE Aerospace Conference Proceedings).
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Garg, L, Kand, A, Pradhan, M & Agarwal, A 2019, Automated Ground Station Design for an Amateur LEO Satellite System. in 2019 IEEE Aerospace Conference, AERO 2019., 8741830, IEEE Aerospace Conference Proceedings, vol. 2019-March, IEEE Computer Society, 2019 IEEE Aerospace Conference, AERO 2019, Big Sky, United States, 02-03-19. https://doi.org/10.1109/AERO.2019.8741830

Automated Ground Station Design for an Amateur LEO Satellite System. / Garg, Lipika; Kand, Atharva; Pradhan, Malhar; Agarwal, Abhishek.

2019 IEEE Aerospace Conference, AERO 2019. IEEE Computer Society, 2019. 8741830 (IEEE Aerospace Conference Proceedings; Vol. 2019-March).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Garg L, Kand A, Pradhan M, Agarwal A. Automated Ground Station Design for an Amateur LEO Satellite System. In 2019 IEEE Aerospace Conference, AERO 2019. IEEE Computer Society. 2019. 8741830. (IEEE Aerospace Conference Proceedings). https://doi.org/10.1109/AERO.2019.8741830