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�������պ����ѧѧ�� 2008, Vol. 34 Issue (02) :144-147    DOI:
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�������պ����ѧ ������Ϣ����ѧԺ, ���� 100083
Novel spaceborne SAR ambiguity echo simulation method
Song Xi, Zhou Yinqing, Chen Jie, Li Chunsheng*
School of Electronics and Information Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

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Abstract�� The ambiguity-to-signal ratio (ASR) is an important performance requirement for spaceborne synthetic aperture radar (SAR) system. A novel ambiguity echo simulation method for spaceborne SAR was proposed to analysis the impact of the ambiguity on SAR image quality quantitatively. A novel spaceborne SAR ambiguity echo model was utilized in the method. The SAR echo from both the observation zone and the ambiguity zone can be generated with this method. The SAR image with ambiguity characteristic can be acquired by applying imaging processing to the echo data. The method is an effective tool for studying the relationship between the ASR and image quality. It can reflect the geometric character of the target in the ambiguity zone, which provides reference for SAR image interpreting. The computer simulation validates the proposed method.
Keywords�� synthetic aperture radar   simulation   radar imaging   ambiguity-to-signal ratio     
Received 2007-02-08;
About author: �� ��(1982- ),��,������,��ʿ��,sussy@ee.buaa.edu.cn.
����,������,�½�,���.һ������SARģ�����ز��źŷ��淽��[J]  �������պ����ѧѧ��, 2008,V34(02): 144-147
Song Xi, Zhou Yinqing, Chen Jie, Li Chunsheng.Novel spaceborne SAR ambiguity echo simulation method[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2008,V34(02): 144-147
http://bhxb.buaa.edu.cn//CN/     ��     http://bhxb.buaa.edu.cn//CN/Y2008/V34/I02/144
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