星载合成孔径雷达聚束模式方位分辨率研究
Study on the Azimuth Resolution of Spaceborne SAR Working on Spotlight Mode
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摘要: 从星载合成孔径雷达与机载合成孔径雷达成像几何关系的差异，可以看出经典的聚束模式合成 孔径雷达方位分辨率公式对于星载情况有较大误差。该文给出了适用于星载聚束模式合成孔径雷达的方位向分辨率的计算方法，数据模拟结果验证了方法的难确性。Abstract: From the difference of imaging geometry between spaceborne SAR, and airborne SAR, traditional formula computing the azimuth resolution of airborne SAR working on spotlight mode will bring big errors if it is used for spaceborne SAR. In this paper, the new formula of the azimuth resolution for spaceborne spotlight SAR. is presented, and the data simulation results validate the validity of the new method.
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Carrara W G, Goodman R S, Majewski R M. Spotlight Synthetic Aperture Radar: Signal Processing Algorithms. Norwood, MA: Artech House, 1995, Chap. 1.[2]Jakowatz C V, Wahl D, Eichel P, Ghiglia D C, et al.. Spotlight-Mode Synthetic Aperture Radar:A Signal Processing Approach, Norwell, MA: Kluwer Academic, 1996, Chap. 2.[3]洪文.机载聚束式合成孔径雷达成像的聚焦处理研究.[博士论文],北京:北京航空航天大学,1997.[4]曹福祥,袁建平,郑谔.聚束照射合成孔径雷达方位分辨率研究.现代雷达,1998,20(6):6-10.[5]张澄波.综合孔径雷达原理、系统分析与应用.北京:科学出版社,1989,第三章. -
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