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�������պ����ѧѧ�� 2006, Vol. 32 Issue (04) :426-429    DOI:
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Microwave imaging by scattering
Li Liang, Miao Jungang, Jiang Yuesong, Li Zhiping*
School of Electronics and Information Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

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Abstract�� A microwave imaging method, which can be applied in detection of concealed weapons and contraband and security in public situations, is presented. In the method, the radar scans on a rectangular plane, i.e. synthesizing a rectangular planar aperture.Synthetic aperture processing for radar data can improve resolutions of the image and the detecting ability of radar. The system can be quasi-monostatic and only a monochromatic microwave is required to illuminate the target to be imaged. Utilizing the phase and amplitude information recorded over a two-dimensional(2-D) aperture can reconstruct a focused 2-D image of the target. A fully 2-D image-reconstruction algorithm, which can be applied in near-field, is developed and deduced. The processing results of simulation and measurement data show that the image-reconstruction algorithm can produce a microwave image with high spatial and radiation resolutions, and has the ability to detect in range without three-dimensional imaging.
Keywords�� microwave imaging   near-field measurement   electromagnetic scattering   synthetic aperture     
Received 2005-04-18;
About author: �� ��(1980-),��,���ϻ�����,˶ʿ��, liliang282@163.com.
����, �翡��, ������, ��־ƽ.Ŀ���΢��ɢ����񷽷�[J]  �������պ����ѧѧ��, 2006,V32(04): 426-429
Li Liang, Miao Jungang, Jiang Yuesong, Li Zhiping.Microwave imaging by scattering[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2006,V32(04): 426-429
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