西安电子科技大学学报（自然科学版）2017，Vol.44Issue(5)：64-68,5.DOI:10.3969/j.issn.1001-2400.2017.05.011
天线相位中心的精确优化算法
Accurate optimization algorithm for the antenna phase center
摘要
Abstract
The antenna phase center (APC) is very important for the positioning of the antenna and the accuracy of the measurement.This paper presents an optimization method to calculate the phase center accurately.Suppose the phase center is at some known point,a so-called proj ection sphere can be drawn with this point as the center,and all the measured points can be proj ected onto this sphere.Then the phases of the proj ected points are obtained by those of the former,and an obj ective function is defined by the sum of squares of the differences between these phases and their average value.Finally,the conj ugate gradient method (CG) or the genetic Algorithm (GA) can be used to find out the coordinate of the phase center. Instead of measuring the antenna phase repeatedly,this new method can determine the coordinates of the phase center accurately in one single operation.Its accuracy is validated by the numerical results of a dipole and a horn antenna.关键词
天线相位中心/优化/共轭梯度法/遗传算法Key words
antenna phase center/optimization/conjugate gradient method(CG)/genetic algorithms (GA)分类
信息技术与安全科学引用本文复制引用
袁浩波,吴征国,侯建强,党晓杰..天线相位中心的精确优化算法[J].西安电子科技大学学报（自然科学版）,2017,44(5):64-68,5.基金项目
国家自然科学基金资助项目(61072018,60901030) （61072018,60901030）
中央高校基本科研业务费专项资金资助项目(K50511020032) （K50511020032）
