PI算法在GPS抗干扰圆形天线阵中的应用  

Application of Power Inversion Algorithm to GPS Anti-jamming Circular Array

作　　者：李旭朝[1] 田红心[1] 李瑞榜[2] 王方[2] 

机构地区：[1]西安电子科技大学综合业务网国家重点实验室,陕西西安710071 [2]中国电子科技集团公司第五十四研究所,河北石家庄050081

出　　处：《无线电工程》2008年第3期37-39,共3页Radio Engineering

摘　　要：随着GPS的广泛应用,出现了各种各样的干扰措施,为了能使GPS接收机正常工作,提出了许多抗干扰方法,其中自适应天线抗干扰尤为有效,功率反演(PI)算法能够使天线阵产生指向干扰方向的波束零陷,从而达到抗干扰的目的。推导了圆形天线阵中的信号向量表示方式,并且将功率反演算法应用于圆阵之中。仿真结果表明,应用功率反演算法的自适应天线阵不适为一种有效的GPS抗干扰方法。As GPS is used more and more widely, there come forth a lots of jamming ways. To guarantee GPS receiver works normally, many anti-jamming measures are brought forward and the adaptive array is one of the most effective. Algorithm of power inversion can bring null in jamming direction, thereby achieves the purpose of anti-jamming . The paper derives the expression of signal vector in circular array, and applies PI in it. The simulation indicates that the adaptive array that applies PI algorithm is an effective way for GPS anti-jamming.

关 键 词：PI算法 自适应天线阵 GPS 抗干扰 

分 类 号：TN821.8[电子电信—信息与通信工程]