平面天线阵的一种新结构和处理算法  

Novel structure and processing way for planar antenna array

作　　者：陈杰[1] 尹应增[2] 

机构地区：[1]西安航空学院电气系,陕西西安710077 [2]西安电子科技大学天线与微波技术重点实验室,陕西西安710071

出　　处：《电波科学学报》2014年第4期745-751,共7页Chinese Journal of Radio Science

基　　金：国家自然科学基金项目(60871008)

摘　　要：提出一种适用于平面天线阵列的微波和数字处理的联合结构及相应的处理算法.这种结构能够以全数字方式估计波达方向,并能以两种方式进行波束形成.一种是全数字处理方式,另一种是按照阵列单元布局的矩阵处理;用数字微波移相器在俯仰面将天线单元的接收微波信号合成微波波束;采用数字波束形成方式形成最终的波束.并提出了双线法估计波达方向的技术.仿真和测试表明其灵活性和可行性.A combined structure of microwave and digital processing is presented for a planar antenna array. The processing method and algorithm for the structure is devel- oped. It can implement estimation of direction of arrival（DOA）by fully digital process- ing and form beam in two ways. One is fully digital processing. The other is a matrix processing corresponding to the array formation, a digital microwave phase shifter is used to combine the received radio carrier wave into beam in elevation; then digital beam forming is implemented to synthesize final pattern. Estimation of spatial DOA through two linear arrays is developed to reduce time expending. Simulation and measurement results show the flexibility and feasibility.

关 键 词：微波波束合成 数字波束合成 移相器 波达方向估计 

分 类 号：TN821.91[电子电信—信息与通信工程]