Browse > Article
http://dx.doi.org/10.5515/KJKIEES.2019.30.4.275

Improvement of KOMPSAT-5 Image Resolution for Target Analysis  

Lee, Seung-Jae (Korea Aerospace Research Institute: KARI)
Chae, Tae-Byeong (Korea Aerospace Research Institute: KARI)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.30, no.4, 2019 , pp. 275-281 More about this Journal
Abstract
A synthetic aperture radar(SAR) satellite is more effective than an optical satellite for target analysis because an SAR satellite can provide two-dimensional electromagnetic scattering distribution of a target during all-weather and day-and-night operations. To conduct target analysis while considering the earth observation interval of an SAR satellite, observing a specific area as wide as possible would be advantageous. However, wider the observation area, worse is the resolution of the associated SAR satellite image. Although conventional methods for improving the resolution of radar images can be employed for addressing this issue, few studies have been conducted for improving the resolution of SAR satellite images and analyzing the performance. Hence, in this study, the applicability of conventional methods to SAR satellite images is investigated. SAR target detection was first applied to Korea Multipurpose Satellite-5(KOMPSAT-5) SAR images provided by Korea Aerospace Research Institute for extracting target responses. Extrapolation, RELAX, and MUSIC algorithms were subsequently applied to the target responses for improving the resolution, and the corresponding performance was thereby analyzed.
Keywords
Extrapolation; SAR Remote Sensing; Satellite SAR Image; Super-Resolution Technique;
Citations & Related Records
연도 인용수 순위
  • Reference
1 I. J. Gupta, M. J. Beals, and A. Moghaddar, "Data extrapolation for high resolution radar imaging," IEEE Transactions on Antennas and Propagation, vol. 42, no. 11, pp. 1540-1545, Nov. 1994.   DOI
2 J. Li, P. Stoica, "Efficient mixed-spectrum estimation with applications to target feature extraction," IEEE Transactions on Signal Processing, vol. 44, no. 2, pp. 281-295, Feb. 1996.   DOI
3 박종일, 김경태, "표적 구분을 위한 ISAR 영상 기법에 대한 연구," 한국전자파학회논문지, 19(3), pp. 294-303, 2008년 3월.   DOI
4 M. Tello, C. Lopez-Martinez, and J. J. Mallorqui, "A novel algorithm for ship detection in SAR imagery based on the wavelet transform," IEEE Geoscience and Remote Sensing Letters, vol. 2, no. 2, pp. 201-205, Apr. 2005.   DOI
5 J. Wang, X. Liu, and Z. Zhou, "Minimum-entropy phase adjustment for ISAR," in IEE Proceedings-Radar Sonar and Navigation, Aug. 2004, vol. 151, no. 4, pp. 203-209.   DOI
6 J. W. Odendaal, E. Bamard, and C. W. I. Pistorius, "Two-dimensional superresolution radar imaging using the MUSIC algorithm," IEEE Transactions on Antennas and Propagation, vol. 42, no. 10, pp. 1386-1391, Oct. 1994.   DOI