volume | PIER Journals

Abstract

Inverse synthetic aperture radar (ISAR) imaging is an effective method to identify unknown targets regardless of weather and illumination conditions. Research results published regarding this topic have focused mainly on imaging and automatic target recognition (ATR) of single targets. However, targets generally fly in formation, so the applicability of ISAR images to ATR of multiple targets must be studied. This paper proposes an ATR procedure for targets flying in formation. ATR accuracy derived using five targets composed of point scatterers and the measured radar signal of a Boeing747 aircraft was as high as that of the solo flight in terms of SNR and the size of the training database; this result shows that ISAR is an adequate tool for ATR even if an image is contaminated by radar reflections from neighboring targets.

1. Park, S.-H., M.-G. Joo, and K.-T. Kim, "Construction of ISAR training database for automatic target recognition," Journal of Electromagnetic Waves and Applications, Vol. 25, No. 11-12, 1493-1503, 2011.
doi:10.1163/156939311797164909

2. Park, J.-I., K.-T, and Kim, "A comparative study on ISAR imaging algorithms for radar target identification," Progress In Electromagnetics Research, Vol. 108, 155-175, 2010.
doi:10.2528/PIER10071901

3. Choi, G.-G., S.-H. Park, H.-T. Kim, and K.-T. Kim, "ISAR imaging of multiple targets based on particle swarm optimization and Hough transform," Journal of Electromagnetic Waves and Applications, Vol. 23, No. 14-15, 1825-1834, 2009.
doi:10.1163/156939309789932322

4. Park, S.-H., H.-T. Kim, and K.-T. Kim, "Enhanced range alignment using a combination of a polynomial and gaussian basis functions," Progress In Electromagnetics Research, Vol. 95, 381-396, 2009.
doi:10.2528/PIER09062602

5. Park, S.-H., H.-T. Kim, and K.-T. Kim, "Stepped-frequency ISAR motion compensation using particle swarm optimization with an island model," Progress In Electromagnetics Research, Vol. 85, 25-37, 2008.
doi:10.2528/PIER08082107

6. Park, S.-H., K.-K. Park, J.-H. Jung, H.-T. Kim, and K.-T. Kim, "Construction of training databas based on high frequency RCS prediction methods for ATR," Journal of Electromagnetic Waves and Applications, Vol. 22, No. 5-6, 693-703, 2008.
doi:10.1163/156939308784159390

7. Park, S.-H., K.-K. Park, J.-H. Jung, H.-T. Kim, and K.-T. Kim, "ISAR imaging of multiple targets using edge detection and Hough transform," Journal of Electromagnetic Waves and Applications, Vol. 22, No. 2-3, 365-373, 2008.
doi:10.1163/156939308784160622

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12. Jung, J.-H., K.-T. Kim, S.-H. Kim, and S.-H. Park, "An efficient ISAR imaging method for multiple targets," Progress In Electromagnetics Research, Vol. 146, 133-142, 2014.
doi:10.2528/PIER14042905

13. Park, S.-H., H.-T. Kim, and K.-T. Kim, "Segmentation of ISAR images of targets moving in formation," IEEE Trans. on Geoscience and Remote Sensing, Vol. 48, No. 4, 2099-2108, Apr. 2010.
doi:10.1109/TGRS.2009.2033266

14. Park, J.-I. and K.-T. Kim, "A comparative study on ISAR imaging algorithms for radar target identification," Progress In Electromagnetics Research, Vol. 108, 155-175, 2010.
doi:10.2528/PIER10071901

15. Li, W.-T., X.-W. Shi, and Y.-Q. Hei, "An improved particle swarm optimization algorithm for pattern synthesis of phased arrays," Progress In Electromagnetics Research, Vol. 82, 319-332, 2008.
doi:10.2528/PIER08030904

16. Kim, K.-T., D.-K. Seo, and H.-T. Kim, "Efficient classification of ISAR images," IEEE Trans. on Antennas and Propagation, Vol. 53, No. 5, 1611-1621, May 2005.
doi:10.1109/TAP.2005.846780

17. Park, S.-H., "Automatic recognition of targets in formation using range profiles," Journal of Electromagnetic Waves and Applications, Vol. 26, No. 14-15, 2059-2069, Oct. 2012.
doi:10.1080/09205071.2012.724769

18. Jung, J.-H., K.-T. Kim, and S.-H. Park, "Removal of JEM signal by accurate estimation of initial parameters of chirplet basis functions," Progress In Electromagnetics Research, Vol. 141, 607-618, 2013.
doi:10.2528/PIER13062408

Prof. Sang-Hong Park