卫星通信系统中强干扰信号抵消技术  

Strong Interference Cancellation Techniques in Satellite Communication Systems

作　　者：杨恒[1] 党军宏[2] 潘亚汉[2] 佟军[1] 

机构地区：[1]解放军理工大学通信工程学院,南京210007 [2]总参第63研究所,南京210007

出　　处：《现代军事通信》2013年第2期23-26,37,共5页

摘　　要：提出一种针对卫星通信宽频带内强干扰抑制的解决方法，其核心思想是采用数字域提取强干扰、模拟域抵消强干扰的方法。给出数字域提取滤波器的基本设计方法和实现步骤，并且结合工程实际，采用数学形态学滤波方法消除卫星宽频带噪底起伏带来的影响。研究与仿真结果表明该方法能对强干扰进行有效抑制。A method for strong interference suppression in broadband satellite communication is proposed, through strong interference extrication and cancellation in both digital and analog fields. The design approaches and implementation procedures for the extraction filter in digital field are provided. Moreover, integrated with engineering practice, a filtering method based on mathematical morphology is presented to eliminate the effects caused by noise floor fluctuation in broadband satellite communication. Theoretical in- vestigation and simulation results demonstrate that the proposed method caneffectively suppress strong interference.

关 键 词：干扰抵消 噪底估计 滤波器设计 

分 类 号：TN927.2[电子电信—通信与信息系统]