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논문 기본 정보

자료유형
학술저널
저자정보
Sang-Hoon Jung (Seoul National University) Kang-In Lee (Kwangwoon University) Hyun-Su Oh (Korea Meteorological Administration) Hyun-Kyo Jung Hoongee Yang (Kwangwoon University) Young-Seek Chung (Kwangwoon University)
저널정보
한국전자파학회JEES Journal of Electromagnetic Engineering And Science Journal of Electromagnetic Engineering And Science Vol.21 No.4
발행연도
2021.9
수록면
261 - 269 (9page)

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초록· 키워드

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In this paper, a hybrid genetic algorithm (GA) is proposed for thinning a two-dimensional planar array by combining the conventional GA with moving least squares (MLS). This enhances the convergence rate and the global search performance. The MLS method is used to estimate local interpolation functions from non-uniform sample data (the population and the value of the objective function in the GA), and to find new and better populations from the interpolated functions. By incorporating these improved populations into the next generation, the MLS-GA achieves improved search performance of the global optimum and a faster convergence rate compared to conventional GA alone. Moreover, a nonlinear chirp function is used for an efficient thinning design. To verify the proposed MLS-GA, it is applied to a test function and the results are compared to that of the GA. The algorithm is then applied to thin an array with a rectangular grid and circular boundary. The design objectives are to minimize the peak side-lobe level and gain loss while satisfying a given thinning coefficient and to compare the results with the GA.

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Abstract
I. INTRODUCTION
II. PROPOSED THINNING DESIGN ALGORITHM
III. PROPOSED HYBRID GA BASED ON MLS
IV. APPLICATION TO TEST FUNCTIONS
V. OPTIMAL DESIGN OF A THINNED ARRAY WITH THE MLS-GA
VI. CONCLUSION
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