三维天线阵列瞬时测向测频算法  

Instantaneous Algorithm for Measuring Direction and Frequency of Three-Dimensional Antenna Array

作　　者：朱栋[1] 付乾良 章林[1] 成伟明[1] 

机构地区：[1]中国电子科技集团公司第二十八研究所,南京210007

出　　处：《指挥信息系统与技术》2014年第2期67-71,共5页Command Information System and Technology

摘　　要：针对来波频率未知情况,提出了利用三维十字交叉天线阵列测量来波方向的方法,同时推导出基于比相法的测量来波方位角和俯仰角的算法。由于该算法与来波波长和基线长度无关,根据方位角和俯仰角的测量结果可推算出来波波长。仿真结果表明,该算法具有较高测向测频精度。Aimed at unknown frequencies of the arrived electromagnetic wave, a method for meas- uring the direction of the arrived electromagnetic wave using three-dimensional cross antenna array is proposed. The algorithm for measuring the azimuth and elevation angles is deduced based on the phase comparison method. Since the algorithm is independent of the arrival wavelength and the baseline length, the wavelength can be worked out according to the measured azimuth and elevation angles. Simulation results prove that the algorithm has high precision on the direction and the frequency estimations.

关 键 词：三维天线阵列 比相法 测向 测频 

分 类 号：TN957[电子电信—信号与信息处理]