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International Journal of Antennas and Propagation
Volume 2013, Article ID 191628, 9 pages
Research Article

A Spaceborne Wide-Area Surveillance Mode and Its Application in Maritime Monitoring

1Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China
2University of the Chinese Academy of Sciences, Beijing 100039, China

Received 30 June 2013; Revised 10 September 2013; Accepted 5 October 2013

Academic Editor: Ananda Sanagavarapu Mohan

Copyright © 2013 Shi-Chao Zheng et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The spaceborne wide-area surveillance mode, achieved by a modified TOPSAR mode, is proposed for maritime monitoring. In the proposed mode, the requirements of detecting targets from different aspect angles with a high revisit rate can be satisfied by modifying the TOPSAR mode which steers antenna in the azimuth direction. The feasibility as well as its application in maritime monitoring are validated by theoretical analysis and simulation experiments.