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Tingay, S J; Kaplan, D L; McKinley, B; Briggs, F; Wayth, R B; Hurley-Walker, N; Kennewell, J; Smith, C; Zhang, K; Arcus, W
The Astronomical journal, 10/2013, Letnik: 146, Številka: 4Journal Article
In this paper we explore the possibility that the MWA can be used for the purposes of Space Situational Awareness (SSA). In particular we propose that the MWA can be used as an element of a passive radar facility operating in the frequency range 87.5-108 MHz (the commercial FM broadcast band). The imaging capabilities of the MWA can be used to simultaneously detect multiple pieces of space debris, image their positions on the sky as a function of time, and provide tracking data that can be used to determine orbital parameters. We provide a feasibility assessment of this proposal, based on simple calculations and electromagnetic simulations, that shows that the detection of sub-meter size debris should be possible (debris radius of > 0.5 m to ~ 1000 km altitude).
