Taylor阵列双阵元失效校正算法  

Algorithm for two elements failure correction to taylor array

作　　者：边莉[1] 车向前[1] 江晓林[1] 

机构地区：[1]黑龙江科技大学电气与信息工程学院,哈尔滨150022

出　　处：《黑龙江科技学院学报》2013年第3期302-307,共6页Journal of Heilongjiang Institute of Science and Technology

基　　金：黑龙江省青年科学基金项目(QC2010023);黑龙江省普通高等学校青年学术骨干支持计划项目(1251G055)

摘　　要：为避免Taylor阵列双阵元失效,在交叉熵全局随机优化算法的基础上提出修正交叉熵算法,给出其程序流程,通过一维连续函数最大值优化和序列盲估计两个算例,验证了该算法的有效性和稳定性。仿真结果表明:给定峰值旁瓣电平为-30 dB,修正叉熵算法通过重置非失效阵元馈电振幅的方法,能够成功地完成方向图校正。该算法不仅可以保证校正结果的准确性,而且还能提高其有效性。Aimed at two elements failure correction to Taylor array, this paper proposes modified cross entropy algorithm based on the cross entropy stochastic global optimization algorithm and offers the program flow to the algorithm , and the effectiveness and stability of the algorithm, as verified by one-di- mensional continuous function maximum optimization and blind sequence estimation. The simulation shows that, with given peak sidelobe level （ - 30 dB）, modified cross entropy algorithm is capable of the successful completion of the pattern correction only by correcting the non failure array feed amplitude. The proposed algorithm performs with not only an expected optimization accuracy, but also an improved effectiveness.

关 键 词：Taylor阵列 阵元失效 方向图校正 交叉熵算法 

分 类 号：TN82[电子电信—信息与通信工程]