改进的GPS抗干扰自适应天线阵性能研究  

Research on Improved Adaptive Array of GPS Receiver for Interference Cancellation

作　　者：王伟[1] 曹祥玉[1] 党东明[1] 徐晓飞[1] 

机构地区：[1]空军工程大学电讯工程学院,陕西西安710077

出　　处：《通信技术》2008年第8期76-78,共3页Communications Technology

基　　金：国家自然科学基金(60671001);西安市工业攻关基金(GG06020)资助项目

摘　　要：文章提出了一种用于GPS接收机的新型抗干扰自适应天线阵,并给出了对其方向图和输出信干噪比的仿真过程。比较了在相同的信号环境时,该天线阵与常用的均匀直线阵、等间隔圆形阵的性能。结果表明,使用该自适应阵可以改善天线阵的方向图,提高输出信号干扰噪声比SINR,增强接收机的抗干扰能力。A novel adaptive antenna array of interference cancellation for a GPS receiver is presented. The simulation processes of its radiation pattern and the SINR of output signals （signal-to-interference and noise ratio） are given. With the same signal environment, the performance of this antenna array is compared to the other two antenna arrays---the uniform linear array and the uniform circular array, The result shows that, by using this novel antenna array, the radiation pattern can be optimized, and the SINR of output signals is increased, and so the performance of interference cancellation for GPS receiver is enhanced.

关 键 词：全球定位系统 波束形成 天线阵 干扰抑制 

分 类 号：TN820.1[电子电信—信息与通信工程]