Title :
Optimum design of antenna pattern for spaceborne SAR performance using improved NSGA-II
Author :
Xiao, Jiang ; Chen, Yongqiang ; Wang, Xiaoqing ; Zhu, Minhui ; Xiao, Liu
Author_Institution :
Nat. Key Lab. of Microwave Imaging Technol., Beijing
Abstract :
Optimization of antenna array using in SAR system is considered in this study. A robust evolutionary algorithm, non-dominated sorting genetic algorithms (improved NSGA-II), is applied on a spaceborne SAR antenna pattern design. The system consists of two objective functions with two constraints. Pareto front are generated as a result of multi-objective optimization. After being validated by a test problem ZDT4, the algorithms were used to synthesis antenna radiation pattern. The good results with low ASR and high directivity are obtained.
Keywords :
antenna arrays; genetic algorithms; geophysical equipment; radar antennas; spaceborne radar; synthetic aperture radar; NSGA- II; Pareto front generation; antenna radiation pattern synthesis; evolutionary algorithm; multiobjective optimization; nondominated sorting genetic algorithms; optimum antenna array design; spaceborne SAR performance; Algorithm design and analysis; Antenna arrays; Antenna radiation patterns; Automatic speech recognition; Evolutionary computation; Genetic algorithms; Pareto optimization; Robustness; Sorting; Testing;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2007. IGARSS 2007. IEEE International
Conference_Location :
Barcelona
Print_ISBN :
978-1-4244-1211-2
Electronic_ISBN :
978-1-4244-1212-9
DOI :
10.1109/IGARSS.2007.4422870
