DS/FH中窄带干扰的变换域处理方法研究  

Research on Transform Domain Narrowband Interference Suppression Method in Hybrid DS/HF System

作　　者：王世练[1] 邬书跃[1] 路军[1] 张尔扬[1] 

机构地区：[1]国防科技大学电子科学与工程学院,湖南长沙410073

出　　处：《国防科技大学学报》2001年第4期98-101,共4页Journal of National University of Defense Technology

基　　金：国防科技重点实验室项目资助 ( 2 0 0 0JS6 3 3 1 KG0 111)

摘　　要：分别给出了DS/FH混合扩频系统中窄带干扰的两种变换域处理方法。具体分析了基于频域FFT和时频域M_PWD分析的被干扰谱线检测与抑制算法 ,为避免谱泄漏 ,在变换处理之前加窗处理。This paper presents two transform domain approaches to suppress the narrowband interference in a hybrid direct sequence frequency hopping spread spectrum system. Different algorithms used in determining and suppressing the interfered frequency bins are studied in detail,based on FFT frequency domain and MPWD time frequency domain respectively. To avoid spectral leaking of the power, windowing can be performed prior to transformation. The simulated numerical results of the system bit error probability under different adaptive algorithms are provided.

关 键 词：DS/FH 窄带干扰 FFT 修正伪Wigner变换 混合扩频系统 抑制算法 变换域处理 

分 类 号：TN911.7[电子电信—通信与信息系统] TN973.3[电子电信—信息与通信工程]