利用功率反演和线性约束最小方差算法的自适应天线

一种利用功率反演和线性约束最小方差算法的自适应天线

内容简介：介绍了一种新的基于功率反演和线性约束最小方差的算法,以高度抑制GPS接收机的干扰信号.这种结构通过提调整天线阵列的权值,实时地接收并改变来自各方向的GPS信号,同时对不同方向的干扰信号有高的抑制比.对固定和移动的干扰都做了仿真,仿真表明这种结构有很深的零点,对固定干扰信号的抑制比可达到115 dB,对移动干扰信号的抑制比可达到94dB.

Abstract：This paper presents a new algorithm based on the power inversion (PI) and the linearly constrained minimum variance (LCMV). This algorithm is capable of adjusting the weights of the antenna array in real time to respond to and improve the global positioning system (GPS) received signals coming from the desired directions and at the same time to highly suppress the jammers coming from the other directions. The simulation is performed for fixed and moving jammers. It indicates that this structure can give deeper nulls, more than 115dB depths for fixed jammers and more than 94dB depths for moving jammers.

作者：E.A.MOHAMED, 谈展中,

关键词：自适应天线, 功率反演(PI), 线性约束最小方差(LCMV), GPS, 抗干扰,