Using Multi-central Frequency Distributed Small Satellite SAR to Achieve Wide Swath and Two Dimensional High Resolution
Xia Yu-li①②; Lei Hong①; Huang Yao①②
①Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China;
②Graduate University of Chinese Academy of Sciences, Beijing 100039, China
Abstract：Distributed small satellite SAR can overcome the traditional contradiction of swath and azimuth resolution. In this paper, an algorithm to achieve both two dimensional high resolution and wide swath is proposed. Every small satellite work in the active state, they transmit and receive different frequency band signal simultaneity. First, the azimuth ambiguity is eliminated in each frequency sub-band, then the signal is rectified to zero Doppler frequency, after that this algorithm does the range spectral synthesis to achieve high range resolution. In other aspects, this active work mode can enhance the system’s average transmit power, and increase the SNR.
夏玉立; 雷 宏; 黄 瑶. 分布式小卫星多中心频率SAR实现宽域二维高分辨率成像[J]. 电子与信息学报, 2009, 31(2): 501-504 .
Xia Yu-li①②; Lei Hong①; Huang Yao①②. Using Multi-central Frequency Distributed Small Satellite SAR to Achieve Wide Swath and Two Dimensional High Resolution. , 2009, 31(2): 501-504 .
2009, Vol. 31 
