一种适用于超宽带系统的窄带干扰消除陷波算法设计与实现  

Notch Filter Algorithm for Narrow-Band Interference Cancellation in UWB Systems

作　　者：于泽 郑立寅 林敏[1] Yu Ze

机构地区：[1]上海大学特种光纤与光接入网重点实验室,上海200444

出　　处：《工业控制计算机》2025年第4期58-60,共3页Industrial Control Computer

摘　　要：超宽带(UWB)通信技术的提出,被认为是解决各无线通信系统共存问题的重要方案。UWB系统的发射功率很低且带宽很宽,因此需要消除来自其他无线系统发射的大功率信号及其高次谐波带来的窄带强干扰。在传统自适应陷波滤波(ANF)算法的基础上,提出了一种变步长自适应陷波滤波(VS-ANF)算法,在收敛速度与收敛精度方面均有提升。同时,提出了ANF控制机制,通过动态分配ANF数量的方式来应对环境中未知强度、带宽及个数的窄带干扰。The proposal of ultra wide band(UWB)communication technology is considered an important solution to solve the coexistence problem of various wireless communication systems.The transmission power of UWB system is quite low and the bandwidth is very wide,so it is necessary to eliminate the narrowband strong interference caused by high-power signals and their high-order harmonics emitted from other wireless systems.This paper proposes a variable step size adaptive notch filter(VS-ANF)algorithm based on the traditional adaptive notch filter(ANF)algorithm,which improves convergence speed and accuracy.Meanwhile,this paper proposes an ANF control mechanism,which dynamically set the number of ANFs to deal with narrowband interference with unknown strength and bandwidth which are in random number in the environment.

关 键 词：超宽带 窄带干扰消除 自适应陷波器 变步长 

分 类 号：TN911.7[电子电信—通信与信息系统]