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      Performance Analysis for Airborne Interferometric SAR Affected by Flexible Baseline Oscillation

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          Abstract

          The airborne interferometric SAR platform suffers from instability factors, such as air turbulence and mechanical vibrations during flight. Such factors cause the oscillation of the flexible baseline, which leads to significant degradation of the performance of the interferometric SAR system. This study is concerned with the baseline oscillation. First, the error of the slant range model under baseline oscillation conditions is formulated. Then, the SAR complex image signal and dual-channel correlation coefficient are modeled based on the first-order, second-order, and generic slant range error. Subsequently, the impact of the baseline oscillation on the imaging and interferometric performance of the SAR system is analyzed. Finally, simulations of the echo data are used to validate the theoretical analysis of the baseline oscillation in the airborne interferometric SAR.

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          Author and article information

          Journal
          Journal of Radars
          Chinese Academy of Sciences
          01 April 2014
          : 3
          : 2
          : 183-192
          Affiliations
          [1 ] Science and Technology on Microwave Imaging Laboratory, Institute of Electronics, Chinese Academy of Sciences
          Article
          c3534d3f7111491dbc94edb34152cc11
          10.3724/SP.J.1300.2014.14015

          This work is licensed under a Creative Commons Attribution 4.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

          Categories
          Technology (General)
          T1-995

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