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›› 2014, Vol. 31 ›› Issue (2): 231-237.DOI: 10.7523/jssn.2095-6134.2014.02.013

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Moving target ISAR imaging based on random pulse repetition frequency and compressed sensing

LIU Bo1,2,3, LI Daojing1,2   

  1. 1. Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China;
    2. Science and Technology on Microwave Imaging Laboratory, Beijing 100190, China;
    3. University of Chinese Academy of Sciences, Beijing 100190, China
  • Received:2013-04-18 Revised:2013-07-05 Online:2014-03-15

Abstract:

A moving target ISAR imaging method based on compressed sensing (CS) theory is presented. Random pulse repetition frequency is used to meet the requirements of both CS theory and ISAR target detection. This ISAR imaging method based on random pulse repetition frequency and CS theory is aimed at solving the Doppler ambiguity problem brought by moving target in ISAR observation model. The effects of the change range of the random interval and the minimum of the change step on the pesformance of the method are analyzed. The validity of the proposed method is testified by the simulation and applications.

Key words: ISAR imaging, compressed sensing, moving target, Doppler ambiguity, random pulse repetition frequency

CLC Number: