空间谱估计方法在卫星干扰源定位中的应用

SPATIAL SPECTRUM ESTIMATION TECHNIQUES FOR SATELLITE INTERFERENCE LOCALIZATION

利用卫星天线的多波束特性来获取信号波达方向 (DOA)信息 ,是通信卫星干扰源定位技术的一个重要方面。本文简要介绍了卫星通信系统实现干扰源定位的技术发展概况 ,重点研究了应用空间谱估计方法实现卫星干扰源的定位。结合星载多波束天线模型的 MUSIC算法的仿真结果进一步验证这一方法的可行性。

It is an important aspect for communication satellite interference localization technques to obtain the source’s direction-of-arrival(DOA)information based on multiple beam antenna(MBA).This paper presents a brief overview of interference localization techniques for satellite communication system,and then focuses on spatial spectrum estimation method applied to the localization of radio frequency interference(RFI)sources.The feasibility of the proposed method is further verified by the simulation results of the MUSIC algorithm when used with MBA model.