一种改进的用于阵列综合的遗传算法目标函数  

A Modified Objective Function Model Based on Genetic Algorithm and Its Application in Pattern Synthesis of Antenna Arrays

作　　者：高波[1] 金荣洪[1] 耿军平[1] 陈俊杰[1] 郭宪广[1] 

机构地区：[1]上海交通大学电子信息与电气工程学院,上海200240

出　　处：《上海交通大学学报》2007年第11期1852-1856,共5页Journal of Shanghai Jiaotong University

基　　金：国家自然科学基金资助项目(F010402/60501016)

摘　　要：现有天线方向图综合方法难以在多零陷生成的同时对旁瓣进一步抑制，提出一种基于动态权的目标函数模型．经过对目标函数适应度的测试，证明该函数模型具有良好的收敛特性．实验证实，在10元阵列的归一化方向图综合中，该模型可使旁瓣降低3～4dB．As the current pattern synthesis of antenna arrays can not be used to suppress the sidelobe as well as keep with several prescribed nulls, a dynamic weight objective function model was proposed. According to the test of the fitness of objective function, the results demonstrate that this function model has a nice convergence characteristic. The experimental results show that about 3 to 4 dB reduction of side lobe can be obtained in the normalized patterns of the 10-element linear array by using the novel function model.

关 键 词：阵列天线 方向图综合 目标函数 遗传优化算法 早熟收敛 

分 类 号：TN820.1[电子电信—信息与通信工程]