应用于宽频带通信干扰对消的重构滤波器设计  

Reconstructed filter design for broadband communicationinterference cancellation

作　　者：张雲硕 王泽 李亚星 何方敏 刘宏波[1] 孟进[1] ZHANG Yunshuo;WANG Ze;LI Yaxing;HE Fangmin;LIU Hongbo;MENG Jin(National Key Laboratory of Electromagnetic Energy,Naval University of Engineering,Wuhan 430030,China)

机构地区：[1]海军工程大学电磁能技术全国重点实验室,湖北武汉430030

出　　处：《国防科技大学学报》2024年第5期37-44,共8页Journal of National University of Defense Technology

基　　金：国家重点研发计划首席科学家负责制试点项目(2021YFF1500100);国家自然科学基金资助项目(52177012);国家杰出青年科学基金资助项目(52025072);电磁能技术全国重点实验室基金资助项目(614221722051301);湖北省自然科学基金资助项目(2021BIDS007)。

摘　　要：围绕宽频带通信干扰对消的需求,提出了新的子带划分与重构框架,并对子带划分滤波器组与重构滤波器进行设计,简化了完全重构条件,使得重构滤波器具备过渡带幅度互补特性。仿真与实验结果表明,设计的重构滤波器可以有效降低重构后通信信号的误码率,并且解决了子带信号拼接过程中的频谱起伏现象。所提出的子带划分与重构框架及重构滤波器设计展现了良好的通信信号重构效果,可为宽频带干扰对消的子带划分与重构工程实践提供新的理论方法与技术路线。A new subband division and reconstruction framework around the requirements of broadband communication interference cancellation was proposed,and the subband division filter banks and the reconstruction filter were designed,which simplified the conditions for complete reconstruction and made the reconstruction filter have the characteristics of complementary transition in band amplitude.The simulation and experiment results show that the reconstruction filter can effectively reduce the bit error rate of reconstructed communication signals and solve the spectrum fluctuation phenomenon in the process of subband signal splicing.Therefore,the subband division and reconstruction framework and the design of the reconstruction filter proposed can effectively reconstruct the frequency-hopping communication signal,which provide new technical route and theoretical method for subband division and reconstruction engineering practice of broadband interference cancellation.

关 键 词：宽频带通信系统 宽频带干扰对消 子带划分与重构 子带划分滤波器组 重构滤波器 

分 类 号：TN91[电子电信—通信与信息系统]