Two-dimensional Length Extraction of Ballistic Target from ISAR Images Using a New Scaling Method by Affine Registration

  • Jin Guanghu National University of Defense Technology, Changsha
  • Gao Xunzhang National University of Defense Technology, Changsha
  • Dong Zhen National University of Defense Technology, Changsha
DOI: https://doi.org/10.14429/dsj.64.5001
Keywords: ISAR image, affine registration, cross scaling, scattering center, clustering

Abstract

The length of ballistic target is one of the most important features for target recognition. It can be extracted from ISAR Images. Unlike from the optical image, the length extraction from ISAR image has two difficulties. The first one is that it is hard to get the actual position of scattering centres by the traditional target extraction method. The second one is that the ISAR image’s cross scale is not known because of the target’s complex rotation. Here we propose two methods to solve these problems. Firstly, we use clustering method to get scattering centers. Secondly we propose to get cross scale of the ISAR images by affine registration. Experiments verified that our approach is realisable and has good performance.

Defence Science Journal, Vol. 64, No. 5, September 2014, pp.458-463, DOI:http://dx.doi.org/10.14429/dsj.64.5001

Author Biographies

Jin Guanghu, National University of Defense Technology, Changsha
Dr Jin Guanghu received PhD degree from National University of Defense Technology in 2009. He is currently Assistant Professor at the Institute of Space Electronic Technology, National University of Defense Technology. His current research interests include ISAR imaging, target recognition and ground moving target imaging.
Gao Xunzhang, National University of Defense Technology, Changsha
Dr Gao Xunzhang received PhD degree from National University of Defense Technology in 2005. He is currently Vice Professor at the Institute of Space Electronic Technology, National University of Defense Technology. His current research interests include ISAR imaging, target recognition and data fusion and processing.
Dong Zhen, National University of Defense Technology, Changsha
Dr Dong Zhen received PhD degree from National University of Defense Technology in 2001. He is currently Professor at the Institute of Space Electronic Technology, National University of Defense Technology. His recent research interests include SAR system design and processing, ground moving target indication (GMTI), and digital beamforming.
Published
2014-08-12
How to Cite
Guanghu, J., Xunzhang, G., & Zhen, D. (2014). Two-dimensional Length Extraction of Ballistic Target from ISAR Images Using a New Scaling Method by Affine Registration. Defence Science Journal, 64(5), 458-463. https://doi.org/10.14429/dsj.64.5001
Issue
Vol 64 No 5
Section
Electronics & Communication Systems
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