J4 ›› 2011, Vol. 38 ›› Issue (4): 66-70.doi: 10.3969/j.issn.1001-2400.2011.04.012

• 研究论文 • 上一篇    下一篇



  1. (西安电子科技大学 雷达信号处理国家重点实验室,陕西 西安  710071)
  • 收稿日期:2010-05-31 出版日期:2011-08-20 发布日期:2011-09-28
  • 通讯作者: 文珺
  • 作者简介:文珺(1984-),女,西安电子科技大学博士研究生,E-mail: wenjun0511@163.com.
  • 基金资助:


Robust ground moving target detection and the velocity estimation method

WEN Jun;LIAO Guisheng;ZHU Shengqi   

  1. (National Key Lab. of Radar Signal Processing, Xidian Univ., Xi'an  710071, China)
  • Received:2010-05-31 Online:2011-08-20 Published:2011-09-28
  • Contact: WEN Jun



关键词: 干涉合成孔径雷达(InSAR), 噪声子空间投影, 地面运动目标检测(GMTI)


For interferomatric synthetic aperture radar (InSAR) together with the ground moving target indication (GMTI) system, the problems of the terrain interferometric phase coupling and the non-stationary clutter induced by the long across-track baseline arise. To mitigate these problems, an alternative GMTI method is addressed. This method takes advantage of the coherence information to coregister two SAR images, and then removes the local flat-earth phase, compensates the terrain interferometric phase, and finally suppress the non-stationary clutter. Therefore, the GMTI function can be well performed in the existing InSAR system. Compared with conventional methods, the performance of target detection can be enhanced and the accuracy of velocity estimation can be greatly improved. Theoretical analysis and real measured data illustrate the effectiveness and practicability of the proposed GMTI method.

Key words: interferomatric synthetic aperture radar (InSAR), noise subspace projection, ground moving target indication (GMTI)