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上行干扰会造成卫星通信系统性能严重下降,本文提出了干扰源定位与自适应调零技术一体化实现的新构想。基于多波束天线的空间谱估计方法可对干扰源进行精确定位,利用获取的DOA估计信息进一步实现干扰信号的有效抑制。应用MUSIC算法的计算机仿真实验表明该方案是可行的。
Uplink interference will cause a serious decline in the performance of satellite communication systems. This paper presents a new concept of integrated interference source positioning and adaptive zeroing technology. The spatial spectrum estimation method based on multi-beam antenna can locate the interference source accurately and use the obtained DOA estimation information to further realize the effective suppression of the interference signal. Computer simulation using MUSIC algorithm shows that this scheme is feasible.