3-D Back-Projection Imaging in Circular SAR with Impulse Signal
Circular Synthetic Aperture Radar (CSAR) travels along a circular track and can obtain a 3-D image for the observed space.Conventional 2-D Back-projection imaging algorithm is transformed to 3-D BackProjection (BP) algorithm for Circular SAR here,which adopts impulse signals. This algorithm is compared with the confocal imaging algorithm,and they are essentially the same which has been proved in this paper.So the analysis with generalized ambiguity function,which is used by the confocal algorithm,is introduced here to analyze the vertical resolution of 3-D BP algorithm.Some simulations demonstrate the validity of the algorithm and the resolution analysis result.Finally,an outside experiment shows the practical 3-D imaging result.
Circular SAR 3-D imaging vertical resolution back-projection ambiguity function
Li Yanghuan Jin Tian Song Qian
Ultral-Wide Band Radar Lab,The College of Electronic Science and Engineering,National University of Defense Technology,Changsha 410073,China
国际会议
2009 2nd Asian-Pacific Conference on Synthetic Aperture Radar(第二届亚太合成孔径雷达会议)
西安
英文
775-778
2009-10-26（万方平台首次上网日期，不代表论文的发表时间）