基于比相法的天线阵测向算法  

Direction-Finding Algorithm for Antenna Array Based on Phase Comparison Method

作　　者：朱栋[1] 王寿峰[1] 张宝健[1] 章林[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》2012年第6期40-44,共5页Command Information System and Technology

摘　　要：提出了一种基于比相法的5阵元天线阵列测向算法,并对该算法进行了误差仿真分析。仿真结果表明,该算法虽具有较高精度,但在特定的方位角范围内会引起较大误差。针对该缺点,采用了旋转参考阵元方法,使得该测向算法在全方位角范围内获得了均匀分布的误差估计值,其均方根误差小于0.1°。A direction-finding algorithm is proposed based on the phase comparison method for the pentagonal antenna array and the error is analyzed by the numerical simulation. The simula- tion result shows that the algorithm has a high degree of accuracy but a rising error in the certain angular range. Aimed at the disadvantage, a method for rotating the reference error estimations are uniformly distributed in the whole angular range, and the error （RMSE） is less than 0. 1° by the direction-finding algorithm. unit is used, the root-mean-square

关 键 词：测向算法 5阵元天线阵列 比相法 

分 类 号：TN957[电子电信—信号与信息处理]