TITLE

재가중치 ℓ1-최소화를 통한 밀리미터파(W밴드) 전방 관측초해상도 레이다 영상 기법

AUTHOR(S)
이혁중; 전주환; 송성찬
PUB. DATE
August 2017
SOURCE
Journal of Korean Institute of Electromagnetic Engineering & Sci;Aug2017, Vol. 28 Issue 8, p636
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A scanning radar is exploited widely such as for ground surveillance, disaster rescue, and etc. However, the range resolution is limited by transmitted bandwidth and cross-range resolution is limited by beam width. In this paper, we propose a method for super-resolution radar imaging. If the distribution of reflectivity is sparse, the distribution is called sparse signal. That is, the problem could be formulated as compressive sensing problem. In this paper, 2D super-resolution radar image is generated via reweighted â„“1-minimization. In the simulation results, we compared the images obtained by the proposed method with those of the conventional Orthogonal Matching Pursuit(OMP) and Synthetic Aperture Radar(SAR).
ACCESSION #
125530881

 

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