The Ad Hoc Back-End of the BIRALET Radar to Measure Slant-Range and Doppler Shift of Resident Space Objects

Space debris is a term for all human-made objects orbiting the Earth or reentering the atmosphere. The population of space debris is continuously growing and it represents a potential issue for active satellites and spacecraft. New collisions and fragmentation could exponentially increase the amount...

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Bibliographic Details
Published in:Electronics (Basel) 2021-03, Vol.10 (5), p.577
Main Authors: Schirru, Luca, Pisanu, Tonino, Podda, Angelo
Format: Article
Language:English
Subjects:
Active satellites
Altitude
Antennas
Art exhibits
Atmospheric entry
Doppler effect
Low earth orbits
Power
Radar equipment
Radar systems
Radio telescopes
Receivers & amplifiers
Risk levels
Satellites
Sensors
Space debris
Space surveillance
Surveillance
Telescopes
Transmitters
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Summary:Space debris is a term for all human-made objects orbiting the Earth or reentering the atmosphere. The population of space debris is continuously growing and it represents a potential issue for active satellites and spacecraft. New collisions and fragmentation could exponentially increase the amount of debris and so the level of risk represented by these objects. The principal technique used for the debris monitoring, in the Low Earth Orbit (LEO) between 200 km and 2000 km of altitude, is based on radar systems. The BIRALET system represents one of the main Italian radars involved in resident space objects observations. It is a bi-static radar, which operates in the P-band at 410–415 MHz, that uses the Sardinia Radio Telescope as receiver. In this paper, a detailed description of the new ad hoc back-end developed for the BIRALET radar, with the aim to perform slant-range and Doppler shift measurements, is presented. The new system was successfully tested in several validation measurement campaigns, the results of which are reported and discussed.
ISSN:2079-9292
2079-9292
DOI:10.3390/electronics10050577