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J4  2010, Vol. 44 Issue (4): 645-651    DOI: 10.3785/j.issn.1008-973X.2010.04.004
电子、通信与自动控制技术     
基于免疫遗传算法的卫星天线结构设计
杨建华1,2, 孙钢2, 吴朝晖2
1.浙江大学 科学技术研究院,浙江 杭州 310027; 2.浙江大学 计算机科学与技术学院,浙江 杭州 310027
Design of satellite antenna using immune genetic algorithm
YANG Jianhua1,2, SUN Gang2, WU Zhaohui2
1. The Sci-Tech Academy of Zhejiang University, Hangzhou 310027, China;
2. College of Computer Science and Technology, Zhejiang University, Hangzhou 310027, China
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摘要:

将实数编码和二进制编码有机结合,形成一种新的混合编码方法,使卫星天线结构与染色体一一对应,简化了天线结构描述以及交叉、变异等遗传操作.以天线性能需求为抗原,以设计过程中天线结构的中间结果为抗体,通过遗传操作优化天线抗体种群,同时引入亲和力、浓度、记忆库等免疫因子,实现了浓度调节机制和抗体记忆功能,保持了天线种群多样性,避免了天线个体的重复计算,使天线抗体种群快速收敛,最终得到符合性能需求的卫星天线结构.通过ST5卫星天线的仿真实例验证了该天线结构设计方法.结果表明,相比传统遗传算法,免疫遗传算法的时间开销减少20%~30%,同时稳定性提高,体现了该设计方法的可行性和高效性.

Abstract:

An immune genetic algorithm of antenna design was presented for optimizing the performance of satellite communications. This antenna was evolved to meet a challenging set of communication requirements, most notably the combination of wide beamwidth for a circularlypolarized wave and wide bandwidth. A novel hybrid encoding of realcode and binarycode was described to simplify the structure description as well as the crossover and mutation operations of the genetic algorithm, which maped the satellite antenna structure to chromosomes one by one. The performance requirements of satellite antenna was treated as the antigen, and the antenna structure in the design process was treated as the antibody. Antenna antibody populations were optimized by genetic manipulation. Meanwhile, affinity, concentration and memory base were added for immune regulation and iteration decrease, so the performance of the satellite antenna met the requirements gradually. At last, the ST5 satellite antenna was used to evaluate the performance of the algorithm. Results showed that the immune genetic algorithm reduced the runtime overhead by 20%-30%, and it performed more stable to design satellite antenna than traditional genetic algorithms.

出版日期: 2010-05-14
:  V243.4  
基金资助:

预研基金(9140A07050106JW0404)

通讯作者: 杨建华(1973—),男,浙江临海人,副教授,博士,从事卫星天线设计与人工智能技术研究.     E-mail: jhyang@zju.edu.cn
作者简介: 杨建华(1973—),男,浙江临海人,副教授,博士,从事卫星天线设计与人工智能技术研究. E-mail: jhyang@zju.edu.cn
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引用本文:

杨建华, 孙钢, 吴朝晖. 基于免疫遗传算法的卫星天线结构设计[J]. J4, 2010, 44(4): 645-651.

YANG Jian-Hua, SUN Gang, TUN Chao-Hui. Design of satellite antenna using immune genetic algorithm. J4, 2010, 44(4): 645-651.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2010.04.004        http://www.zjujournals.com/eng/CN/Y2010/V44/I4/645

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