Worst-case tolerance analysis on array antenna based on chaos-genetic algorithm  

作　　者：Hao Yuan Dan Songt Qiangfeng Zhou Huaping Xu 

机构地区：[1]State Key Laboratory of Precision Measurement Technology and Instruments, Tsinghua University, Beijing 100084, P. R. China [2]Department of Precision Instrument and Mechanology, Tsinghua University, Beijing 100084, P. R. China [3]School of Electronic and Information Engineering, Beihang University, Beijing 100191, P. R. China

出　　处：《Journal of Systems Engineering and Electronics》2012年第6期824-830,共7页系统工程与电子技术（英文版）

基　　金：supported by the National Natural Science Foundation of China (60901055)

摘　　要：This paper studies the effect of amplitude-phase errors on the antenna performance. Via builting on a worst-case error tolerance model, a simple and practical worst error tolerance analysis based on the chaos-genetic algorithm （CGA） is proposed. The proposed method utilizes chaos to optimize initial population for the genetic algorithm （GA） and introduces chaotic disturbance into the genetic mutation, thereby improving the ability of the GA to search for the global optimum. Numerical simulations demonstrate that the accuracy and stability of the worst-case analysis of the proposed approach are superior to the GA. And the proposed algorithm can be used easily for the error tolerant design of antenna arrays.This paper studies the effect of amplitude-phase errors on the antenna performance. Via builting on a worst-case error tolerance model, a simple and practical worst error tolerance analysis based on the chaos-genetic algorithm （CGA） is proposed. The proposed method utilizes chaos to optimize initial population for the genetic algorithm （GA） and introduces chaotic disturbance into the genetic mutation, thereby improving the ability of the GA to search for the global optimum. Numerical simulations demonstrate that the accuracy and stability of the worst-case analysis of the proposed approach are superior to the GA. And the proposed algorithm can be used easily for the error tolerant design of antenna arrays.

关 键 词：genetic algorithm （GA） array antenna tolerance anal-ysis chaos disturbance logistic map 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置] O242.23[自动化与计算机技术—控制科学与工程]