A transponder-based motion compensation approach for near-space passive radars
作者： L. Wang , W. Q. Wang , Z. H. Shao , J. Y. Cai
DOI: 10.1109/ICCPS.2011.6092268
关键词: Synthetic aperture radar 、 Remote sensing 、 Bistatic radar 、 Remote sensing application 、 Motion compensation 、 Staring 、 Electronic engineering 、 Passive radar 、 Near space 、 Transponder 、 Computer science
摘要: Near-space platforms defined as the aerocrafts flying in space region between 20km and 100km which is above storms not constrained by orbital mechanics like satellites or high fuel consumptions airplanes, they can stay at a specific site almost indefinitely to provide persistent coverage. Although current spaceborne airborne synthetic aperture radar (SAR) systems have playing an important role various remote sensing applications, cannot staring presence on timescale of days, weeks, months over selected target area interest. To get around these disadvantages, near-space passive bistatic SAR involves receiver placed inside aerocraft conjunction with some opportunistic illuminators, recommended for persistently applications; however, effective motion compensation required. As such, this paper presented one transponder-based approach. The system configuration corresponding signal processing algorithm are detailed. Furthermore, several possible error sources their effects also investigated.
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