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�������պ����ѧѧ�� 2008, Vol. 34 Issue (01) :92-95    DOI:
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Near-filed imaging method of two-dimension interferometric synthetic aperture radiometer
Hu Anyong, Liu Chongkan, Miao Jungang, Wan Guolong*
School of Electronics and Information Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

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Abstract�� A near-field imaging method of two-dimension interferometric synthetic aperture radiometer was presented. Based on the principle of the two-dimension interferometric synthetic aperture radiometer and the near-field condition, the shortcomings of FFT(fast Fourier transform) imaging method were analyzed, and a near-filed numerical imaging method by phase compensating was proposed. The imaging simulation of single point-target by FFT reverse algorithm and the near-filed reverse algorithm were carried out respectively. The simulation results show that the near-filed reverse algorithm has better resolution than FFT reverse algorithm. The imaging experiment of two separate man-made points with these two methods was accomplished, and the experiment results prove that the near-field imaging method is valid.
Keywords�� interferometry   synthetic aperture   radiometer   near field   fast Fourier transform     
Received 2007-01-25;
Fund:

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About author: ������(1980��),��,����¦����,��ʿ��,hay800906@126.com.
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������,���ؿ�,�翡��,�����.һ�ֶ�ά�����ۺϿ׾�����ƽ��������㷨[J]  �������պ����ѧѧ��, 2008,V34(01): 92-95
Hu Anyong, Liu Chongkan, Miao Jungang, Wan Guolong.Near-filed imaging method of two-dimension interferometric synthetic aperture radiometer[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2008,V34(01): 92-95
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http://bhxb.buaa.edu.cn//CN/     ��     http://bhxb.buaa.edu.cn//CN/Y2008/V34/I01/92
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