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Volume 33 Issue 5
Jun.  2011
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Wang Xiao-Guang, Wang Zhi-Qiang, Yang Xin, Liu Wei. Analysis of Spaceborne Dual-antenna InSAR System Characteristic Under Flexible Baseline Oscillation[J]. Journal of Electronics & Information Technology, 2011, 33(5): 1114-1118. doi: 10.3724/SP.J.1146.2010.00918
Citation: Wang Xiao-Guang, Wang Zhi-Qiang, Yang Xin, Liu Wei. Analysis of Spaceborne Dual-antenna InSAR System Characteristic Under Flexible Baseline Oscillation[J]. Journal of Electronics & Information Technology, 2011, 33(5): 1114-1118. doi: 10.3724/SP.J.1146.2010.00918

Analysis of Spaceborne Dual-antenna InSAR System Characteristic Under Flexible Baseline Oscillation

doi: 10.3724/SP.J.1146.2010.00918
  • Received Date: 2010-08-27
  • Rev Recd Date: 2010-12-23
  • Publish Date: 2011-05-19
  • The main performance of spaceborne dual-antenna InSAR system in case of flexible baseline oscillation is investigated. Based on the mast motion model, a reduced raw echo signal of the slave antenna is derived under a limited condition. Then, the antenna beam misalignment is analysed and an alignment scheme is proposed. Finally, the oscillation effect on the SAR image resolution and the interferogram coherence is expounded for both the slow and high frequency. In the example of typical system, theoretical analysis and numerical simulation conducted show the result is consistent, which could provide an reference for the system design and application.
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