| OPTIMIZATION ON ANTENNA PATTERN OF SPACEBORNE SAR WITH IMPROVED NSGA-Ⅱ |
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| 作者单位： | Xiao Jiang,Wang Xiaoqing,Zhu Minhui(National Key Laboratory of Microwave Imaging Technology, Beijing 100190, China;Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China);Xiao Liu(Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China) |
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| 摘 要： | Optimization of antenna array pattern used in a spaceborne Synthetic Aperture Radar (SAR) system is considered in this study. A robust evolutionary algorithm, Non-dominated Sorting Genetic Algorithms (the improved NSGA-Ⅱ), is applied on a spaceborne SAR antenna pattern design. The system consists of two objective functions with two constraints. Pareto fronts are generated as a result of multi-objective optimization. After being validated by a test problem ZDT4, the algorithms are used to synthesize spacebor...
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| 关 键 词： | 非支配排序遗传算法 星载SAR 天线方向图 优化使用 星载合成孔径雷达 系统模式 多目标优化 天线阵列 |
Optimization on antenna pattern of spaceborne SAR with improved NSGA-II |
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| Jiang Xiao,Xiaoqing Wang,Minhui Zhu,Liu Xiao. Optimization on antenna pattern of spaceborne SAR with improved NSGA-II[J]. Journal of Electronics, 2009, 26(4): 443-447. DOI: 10.1007/s11767-008-0020-0 |
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| Authors: | Jiang Xiao Xiaoqing Wang Minhui Zhu Liu Xiao |
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| Affiliation: | 1. National Key Laboratory of Microwave Imaging Technology, Beijing 100190, China;Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China
2. Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China |
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| Abstract: | Optimization of antenna array pattern used in a spaceborne Synthetic Aperture Radar (SAR) system is considered in this study. A robust evolutionary algorithm, Non-dominated Sorting Genetic Algorithms (the improved NSGA-II), is applied on a spaceborne SAR antenna pattern design. The system consists of two objective functions with two constraints. Pareto fronts are generated as a result of multi-objective optimization. After being validated by a test problem ZDT4, the algorithms are used to synthesize spaceborne SAR antenna radiation pattern. The good results with low Ambiguity-to-Signal Ratio (ASR) and high directivity are obtained in the paper. |
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| Keywords: | Key words Synthetic Aperture Radar (SAR) Radiation pattern Improved Non-dominated Sorting Genetic Algorithms (NSGA)-II Ambiguity-to-Signal Ratio (ASR) |
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