J4 ›› 2009, Vol. 36 ›› Issue (5): 825-830+915.

• Original Articles • Previous Articles     Next Articles

New algorithm for high-speed spinning target 3D ISAR imaging

HE Bo-sen;ZHANG Lei;ZHANG Long;XING Meng-dao;BAO Zheng   

  1. (Key Lab. of Radar Signal Processing, Xidian Univ., Xi'an  710071, China)
  • Received:2008-10-28 Online:2009-10-20 Published:2009-11-30
  • Contact: HE Bo-sen E-mail:hebosen@163.com

Abstract:

A 2D spectrum matched filter banks based 3D ISAR imaging algorithm for a target in high speed spinning is proposed. Each spectrum matched filter bank yields a focused slice for corresponding scatterers. By extracting the spatial parameters from all the slices, the 3D image of the target can be constructed. The existing GRT and EHT based algorithm is low in efficiency since the projection procedure is carried out scatterer by scatterer. However, our approach is based on the matched filtering theory, and by applying FFT, it has a low computational load. Numerical simulation confirms the validity of the algorithm.

Key words: 3D ISAR imaging, spectrum matched filter bank, spinning targets

CLC Number: 

  • TN959