J4 ›› 2010, Vol. 37 ›› Issue (4): 660-664+670.doi: 10.3969/j.issn.1001-2400.2010.04.014

• 研究论文 • 上一篇    下一篇



  1. (西安电子科技大学 雷达信号处理重点实验室,陕西 西安  710071)
  • 收稿日期:2009-05-05 出版日期:2010-08-20 发布日期:2010-10-11
  • 通讯作者: 刘亚波
  • 作者简介:刘亚波(1984-),男,西安电子科技大学博士研究生,E-mail: liuyabo9333@163.com.
  • 基金资助:


Coherent single range doppler interferometry based space debris radar image

LIU Ya-bo;ZHANG Lei;XING Meng-dao;BAO Zheng   

  1. (Key Lab. of Radar Signal Processing, Xidian Univ., Xi'an  710071, China)
  • Received:2009-05-05 Online:2010-08-20 Published:2010-10-11
  • Contact: LIU Ya-bo



关键词: 雷达成像, 太空碎片, 相干单距离多普勒干涉, 时频特性


For space debris radar imaging with the dimension smaller than the radar range resolution, with the assumption that the translational motion is compensated, and considering movement features of space debris, a novel coherent single range Doppler interferometry (CSRDI) imaging algorithm is proposed, which utilizes the intensity and the phase distribution characteristic of the signal time-frequency spectrum, and implements coherent integration via sinusoid searching. Thus the high resolution 2D space distribution of a space debris is acquired. In addition, a detailed analysis of the relation between the time-frequency spectrum and the resolution as well as the quality of the image is made, and a standard for determining the window function is proposed. Numeric simulation verifies that an image with much finer resolution and higher quality can be achieved through the proposed approach, even under a low signal to noise rate (SNR) condition.

Key words: radar imaging, space debris, coherent single range Doppler interferometry, time-frequency characteristics