光学観測による再突入飛翔体の捕捉

概要

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Normally, reentry bodies, even if they are to be recovered, are not equipped with onboard instruments such as transponders, which are useful for real-time position monitoring of the reentry bodies during the flight. This is because the surrounding plasma generated by the aerodynamic heating makes the transponder positioning nonsense as the blackout phenomena. If we could know the trajectory during the reentry phase, even if it's not monitored in real-time, the information will be a great help for the rapid recovery. The radiation from the highly-heated reentry body during the aerodynamic heating has enough intense radiation in visible region for the detection on the ground. This paper investigates a method of optical capturing of the reentry bodies by means of the visible radiation from the bodies during the aerodynamic heating. And a result of the optical tracking actually carried out on the occasion of the reentry of the REV capsule is also presented.
宇宙航空研究開発機構の論文