基于微分几何的圆阵二维测向性能分析  

2 - D DOA Performance Analysis of Circular Array Based on Differential Geometry

作　　者：刘康[1,2] 习友宝[1] 李智 

机构地区：[1]电子科技大学电子工程学院,成都610054 [2]电子信息控制重点实验室,成都610036

出　　处：《电子对抗》2012年第2期21-25,共5页Electronic Warfare

摘　　要：建立了一种新的平面圆阵模型，并利用阵列流形的微分几何方法分析了该模型的阵列结构与二维测向精度之间的关系，从而提出了一种圆阵设计方法。通过计算机仿真，对三种不同圆阵阵型的测向性能进行了比较研究，验证了该方法的可行性，并对这三种阵型的测向模糊进行了分析。这为实际圆阵阵元结构设置提供了一定的参考，避免了设计的盲目性。In this article, a new model of plane circular antenna array is founded. The relationship between the geometric configuration and the 2- D DOA accuracy is analyzed based on the differential geometry of the array manifold. Then a circular array design method is proposed. The feasibility of the method is verified by the comparing three different arrays in computer simulation, and the ambiguous generator sets of directions for the three kinds of arrays are analyzed. It provides the certain reference for actual circular array structure design to avoid the blindness of the design.

关 键 词：微分几何 圆阵 测向 模糊 

分 类 号：TN911.7[电子电信—通信与信息系统]