电子信息对抗技术
電子信息對抗技術
전자신식대항기술
ELECTRONIC INFORMATION WARFARE TECHNOLOGY
2015年
3期
63-67,80
,共6页
数字信道化%宽带信号重构%多相滤波
數字信道化%寬帶信號重構%多相濾波
수자신도화%관대신호중구%다상려파
digital channelization%wide-band signal reconfiguration%poly-phase filter banks
数字信道化技术广泛用于宽带信号处理领域，传统的信道化结构由于信道数和抽取(内插)数相等，相邻信道存在混叠问题，对于跨信道信号接收、重构存在很大程度失真。提出一种改进的信道化结构，推导了相应的多相滤波高效算法，最后通过Matlab仿真验证该算法具有很好的改进效果。
數字信道化技術廣汎用于寬帶信號處理領域，傳統的信道化結構由于信道數和抽取(內插)數相等，相鄰信道存在混疊問題，對于跨信道信號接收、重構存在很大程度失真。提齣一種改進的信道化結構，推導瞭相應的多相濾波高效算法，最後通過Matlab倣真驗證該算法具有很好的改進效果。
수자신도화기술엄범용우관대신호처리영역，전통적신도화결구유우신도수화추취(내삽)수상등，상린신도존재혼첩문제，대우과신도신호접수、중구존재흔대정도실진。제출일충개진적신도화결구，추도료상응적다상려파고효산법，최후통과Matlab방진험증해산법구유흔호적개진효과。
Digital channelized technique is widely applied on the wide-band signal processing area. As the number of channels equals to the decimating factor(also inserting factor),classic channelized structure has to face the aliasing issues from the overlapping channels, which em-ploys great distortion for the wide-band signal receiving and reconfiguration. An improved chan-nelized structure is proposed,which also deduces the poly-phase filter banks algorithm. Finally the simulation by Matlab shows the method has an excellent result.
