J4 ›› 2010, Vol. 37 ›› Issue (6): 1027-1032.doi: 10.3969/j.issn.1001-2400.2010.06.009

• 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:2010-05-04 出版日期:2010-12-20 发布日期:2011-01-22
  • 通讯作者: 臧博
  • 作者简介:臧博(1983-),男,西安电子科技大学博士研究生,E-mail: zangbotiger@163.com.
  • 基金资助:


Novel imaging method using compressed sensing for the inverse synthetic aperture imaging ladar

ZANG Bo;ZHANG Lei;TANG Yu;XING Meng-dao   

  1. (National Lab. of Radar Signal Processing, Xidian Univ., Xi'an  710071, China)
  • Received:2010-05-04 Online:2010-12-20 Published:2011-01-22
  • Contact: ZANG Bo



关键词: 逆合成孔径成像激光雷达, 瞬时成像, 压缩感知, 稀疏信号重构


Limited by the laser modulation technique, the coherence between transmitting pulses of the inverse synthetic aperture imaging ladar (ISAIL) can not be kept, which leads to the unfocused image in the azimuth direction. Here, an instantaneous imaging algorithm is proposed to achieve the high resolution with less echo data in a short coherence time. Based on the theory of compressed sensing, the ISAIL imaging is converted into a reconstruction issue using the orthogonal base. The reconstruction of the target is resolved by optimizing the function. Under the situation of a low SNR, the performance of the imaging algorithm is improved by constructing a weighted matrix. Experimental results using measured data of the indoor ISAIL system validate the feasibility and effectiveness of our method.

Key words: inverse synthetic aperture imaging ladar, instantaneous imaging, compressed sensing, sparse signal reconstruction