J4 ›› 2012, Vol. 39 ›› Issue (4): 81-86.doi: 10.3969/j.issn.1001-2400.2012.04.015

• Original Articles • Previous Articles     Next Articles

High resolution range profile compensation algorithm for  the space target with uniform acceleration

LIU Hongchao;JIU Bo;LIU Hongwei;BAO Zheng   

  1. (National Key Lab. of Radar Signal Processing, Xidian Univ., Xi'an  710071, China)
  • Received:2011-04-22 Online:2012-08-20 Published:2012-10-08
  • Contact: LIU Hongchao E-mail:hongchaoliu568@163.com

Abstract:

By regarding the target echo as the cubic phase signal approximately, a compensation algorithm for space target based on the cubic phase function is proposed. Additionally, the Cramer-Rao bound of velocity and acceleration estimation is deduced with the purpose of evaluating the performance of the proposed algorithm. Numerical results show that the proposed algorithm can estimate the velocity and acceleration of the target and compensate the high resolution range profile under a lower signal to noise ratio,which is important for the following inverse synthetic aperture radar imaging and target recognition.

Key words: cubic phase function, high resolution range profile, inverse synthetic aperture radar imaging, motion compensation, Cramer-Rao bound