星载合成孔径雷达(SAR)成像处理快速近似算法
A FAST APPROXIMATE IMAGING ALGORITHM FOR SPACEBORNE SYNTHETIC APERTURE RADAR
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摘要: 本文研究了一种用于星载SAR方位处理的快速算法,称为SPECAN算法,该算法与常规的频域算法相比较,在计算量、存贮量和算法结构上都有明显的优势。它可作为星载SAR粗处理的实时处理算法,对星载SAR实时成像处理具有重大意义。本文着重研究了SPECAN算法的结构及其在星载SAR中所需解决的特殊问题。最后,利用SEASAT-A海洋卫星SAR原始数据验证了该算法的可行性。Abstract: A fast algorithm of azimuth processing for spaceborne SAR, which is called SPECAN algorithm, is proposed. Comparing with general frequency algorithms, SPECAN has advantages in computation, memory and structure. SPECAN algorithm is very important for surveying real-time processing of spacehorne SAR. The structure and special problems for SPECAN algorithm used in spaceborne SAR are mainly engaged in this paper. Finally, raw data of SEASAT-A satellite is used to test the feasibility of SPECAN algorithm.
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Chialin Wu, K. Y. Liu, Michal Jin, IEEE Trans. on AES, AES-18(1982)5, 563-594.[2]W. E. Arens, Application of CCD Technology to Produce Imagery from Radar Data, Proc. of AIAA System Design Driven by Sensor Conf., Oct. 1976, Pasadena, Calif pp. 21-27.l[3]黄永红,星载SAR实时信号处理高效算法,北京航空航天大学电子工程系硕士论文,北京,1989年3月.[4]黄永红,星载合成孔径雷达成像处理与运动补偿,北京航空航天大学电子工程系博士论文,北京,1992年,5月. -
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