双二维矢量传感器垂直阵定向技术的研究  

The Direction-of-Arrival Estimation Using Two-Dimensional Vector-Sensor Orthogonal Array

作　　者：陈甲子[1] 韩鹏[1] 李丹[1] 檀虎[1] 

机构地区：[1]西北工业大学航海学院,陕西西安710072

出　　处：《测控技术》2011年第1期17-20,共4页Measurement & Control Technology

摘　　要：针对目前国内矢量传感器制造技术的现状,研究了很有实用价值的二维矢量传感器阵的定向方法。首先分析了二维矢量传感器接收信号的形式,推导得出单个二维矢量传感器有一定的三维空间定向能力;继而设计出一个双二维矢量传感器垂直阵,并针对此垂直阵提出了方位估计的3种算法:分测法、混测法和鉴测法;接着对定向算法进行仿真实验,验证了各种算法,并采用概率密度统计的方法使定向结果更明显;同时运用概率统计的方法很好地解决了方位估计时出现的左右舷模糊问题;最后经过方差分析各种算法的精度,指出3种算法的精度不同是由数据利用率和阵元信道差异造成的。Faced with domestic vector sensor manufacturing technology,the algorithms of direction-of-arrival（DOA） estimation based on orthogonal array a two-dimensional vector-sensor is studied.First,the signals form of a single two-dimensional vector-sensor is analyzed and it is declared that a single two-dimensional vector-sensor have a certain three-dimensional directional capability is declared.Second,an orthogonal array comprising pair two-dimensional vector-sensor is designed,and three DOA estimation algorithms for the orthogonal array are proposed.Then,by using probability density statistical method,the three algorithms are simulated and verified,and the problem that two results appear in DOA estimation is solved.Eventually,after analysis of variance of various algorithms,the different precision of three algorithms is due to the difference in data utilization and the difference in array element channels.

关 键 词：矢量传感器 双二维矢量传感器垂直阵 相关法 定向 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]