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�������պ����ѧѧ�� 2006, Vol. 32 Issue (04) :445-449    DOI:
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һ�ֲַ�ʽС����SAR���Ӹ�ͼ���źŷ��淽��
�컪ƽ, �½�, ������, ������*
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Quick method of distributed small satellite synthetic aperture radar single-look complex image simulation
Xu Huaping, Chen Jie, Wang Baofa, Zhou Yinqing*
School of Electronics and Information Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

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ժҪ �ܽ��˷ֲ�ʽС���Ǻϳɿ׾��״�(DSS-SAR,Distributed Small Satellite Synthetic Aperture Radar)�ز��źŷ�������߱��Ļ�������.������DSS-SAR�Ŀռ伸��ģ�ͺ��ź�ģ��.�ռ伸��ģ��������С���DZ�ӹ��ε�Hill���̸���,�ź�ģ���ɵ��Ӹ�ͼ���ź�ģ�͡��ź������ģ�ͺ͸�����λ��ͳ�����Թ�ͬ����.��Ͽռ伸��ģ�ͺ͵��Ӹ�ͼ���ź�ģ��,�����һ�ּ���DSS-SAR���Ӹ�ͼ���źŵķ��淽��.�÷��淽����,С���ǵĿռ�λ���Ǹ����������Ŀռ�λ�ú�С���ǵı�ӹ��μ���õ�,��˷���ʱ�ܹ���������С����Ⱥ�ı�ӹ���.ͨ����Բ׶��ά���κ�ƽ�����ֵ��泡���Ľ��лز��źŷ���,��������÷��淽�������ܹ�ʵ��DSS-SAR�źŷ������߱��Ĺ���,���һ�����ʵ�ּ�ࡢ�����뷽����ŵ�.
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Abstract�� The basic requirements for echo simulation of DSS-SAR(distributed small satellite synthetic aperture radar) were concluded. The geometry model and signal model of DSS-SAR were presented. Hill equation was employed to illustrate the configuration of small satellites. Single-look complex image signal model, correlation of DSS-SAR echoes and interferometric phase probability density function were given to show the signal characteristics of DSS-SAR. A quick methodwas proposed to simulate single-look complex images of DSS-SAR. The method calculated positions of small satellites with the position of the central point and the small satellite configuration. It can simulate the single-look complex imagesignal of the arbitrary formation small satellite cluster conveniently. The flat and conical terrains were chosen, and the simulated single-look SAR(sythentic aperture radar) complex images were obtained with the proposed method. Computer simulation results show the simulation method not only satisfies the DSS-SAR signal simulation needs, but adds many kinds of error conveniently and simulates signal realistically.
Keywords�� synthetic aperture radar   distributed   simulation   algorithm     
Received 2005-04-20;
About author: �컪ƽ(1977-),Ů,����μ����,��ʿ, huaping xu@sina.com.
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�컪ƽ, �½�, ������, ������.һ�ֲַ�ʽС����SAR���Ӹ�ͼ���źŷ��淽��[J]  �������պ����ѧѧ��, 2006,V32(04): 445-449
Xu Huaping, Chen Jie, Wang Baofa, Zhou Yinqing.Quick method of distributed small satellite synthetic aperture radar single-look complex image simulation[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2006,V32(04): 445-449
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http://bhxb.buaa.edu.cn//CN/     ��     http://bhxb.buaa.edu.cn//CN/Y2006/V32/I04/445
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