Journal of Systems Engineering and Electronics ›› 2010, Vol. 32 ›› Issue (12): 2565-2569.doi: 10.3969/j.issn.1001-506X.2010.12.16

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ISAR image cross scaling method for ballistic target based on image registration

JIN Guang-hu1, GAO Xun-zhang1, LI Xiang1, CHEN Yong-guang2   

  1. 1. School of Electronics Science and Engineering, National Univ. of Defense Technology, Changsha 410073, China;
    2. Unit 63880 of the PLA, Luoyang 471003, China
  • Online:2010-12-18 Published:2010-01-03

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Abstract:

The inverse synthetic aperture radar (ISAR) image cross scaling is the key technique for extracting the dimension and shape of radar targets. For ballistic targets, the paper verifies that the ISAR image can be registered only when the cross range is right scaled. Based on this conclusion, a new ISAR image scaling method based on affine transform is presented. The cross ratio is evaluated based on the registration matrix. The experiment result shows the algorithm has a good performance.

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