A multi-frequency survey with prototype SKA-Low stations identified 152 unique satellites, measured their radio emissions, and found the new identification pipeline has a simulated misidentification rate below 1%.
Establishing the Capabilities of the Murchison Widefield Array as a Passive Radar for the Surveillance of Space
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abstract
This paper describes the use of the Murchison Widefield Array, a low-frequency radio telescope at a radio-quiet Western Australian site, as a radar receiver forming part of a continent-spanning multistatic radar network for the surveillance of space. This paper details the system geometry employed, the orbit-specific radar signal processing, and the orbit determination algorithms necessary to ensure resident space objects are detected, tracked, and propagated. Finally, the paper includes the results processed after a short collection campaign utilising several FM radio transmitters across the country, up to a maximum baseline distance of over 2500 km. The results demonstrate the Murchison Widefield Array is able to provide widefield and persistent coverage of objects in low Earth orbit.
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Enhanced detection and identification of satellites using an all-sky multi-frequency survey with prototype SKA-Low stations
A multi-frequency survey with prototype SKA-Low stations identified 152 unique satellites, measured their radio emissions, and found the new identification pipeline has a simulated misidentification rate below 1%.