改进的圆形自适应抗干扰天线阵性能研究  

An Improved Method of Interference Cancellation for the Uniform Circular Adaptive Array

作　　者：王伟[1] 曹祥玉[1] 王帅[2] 刘涛[1] 

机构地区：[1]空军工程大学电讯工程学院,西安710077 [2]安徽合力股份有限公司装载机事业部研究所,合肥230601

出　　处：《微波学报》2008年第6期47-50,共4页Journal of Microwaves

基　　金：国家自然科学基金(60671001);陕西省自然科学基础研究计划(2005F21);西安市工业攻关基金(GG06020)资助项目

摘　　要：针对常用的自适应算法都需要复杂的来波方向估计过程,而且方向估计误差会恶化自适应阵性能的问题,以等间距圆形自适应阵为研究对象,提出了一种改进的自适应方法。通过引入阵列导向矢量,使自适应阵具有了波束搜索能力,避免了复杂的来波方向估计过程,并提出了相应的系统实现方案。最后对该方法进行了计算机仿真,结果表明该方法是有效的。Focusing on the problems that the conventional adaptive algorithm generally needs to estimate the direction of arrival signal beam and the deviation of direction estimation will depress the performance of an adaptive array, an improved adaptive algorithm was proposed here, on a uniform circular array. Through introducing an array steering vector, the ability of searching the desired signal beam is obtained by the adaptive array. So the complicated process for direction estimate is a- voided. The system scheme is also presented here. Finally, the validity of the algorithm is verified by the simulation experiment.

关 键 词：自适应阵列 波束形成 干扰抑制 阵列天线 

分 类 号：TN821[电子电信—信息与通信工程]