[1]胡爱群,雷静.扩频通信中大功率窄带干扰抑制的一种频域自适应算法[J].东南大学学报(自然科学版),1999,29(4):52-56.[doi:10.3969/j.issn.1001-0505.1999.04.012]
　Hu Aiqun,Lei Jing.A Spectrum Domain Adaptive Filtering Algorithm for Large NBI Suppression in Spread Spectrum Communications[J].Journal of Southeast University (Natural Science Edition),1999,29(4):52-56.[doi:10.3969/j.issn.1001-0505.1999.04.012]
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扩频通信中大功率窄带干扰抑制的一种频域自适应算法()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
29
期数:
1999年第4期
页码:
52-56
栏目:
电磁场与微波技术
出版日期:
1999-07-20

文章信息/Info

Title:
A Spectrum Domain Adaptive Filtering Algorithm for Large NBI Suppression in Spread Spectrum Communications
作者:
胡爱群;  雷静
东南大学无线电工程系,南京 210096
Author(s):
Hu Aiqun;  Lei Jing
Department of Radio Engineering, Southeast University, Nanjing 210096
关键词:
扩频通信;  窄带干扰;  功率谱密度;  频域自适应滤波;  FFT;  JSR
Keywords:
spread spectrum communications;  NBI;  PSD;  spectrum domain adaptive filtering;  FFT;  JSR
分类号:
TN973.3
DOI:
10.3969/j.issn.1001-0505.1999.04.012
摘要:
基于扩频信号与大功率的窄带干扰在功率谱密度(PSD)上的显著差异,本文提出了一种带反馈的频域自适应算法,它能够在多个大功率NBI同时存在的情形下稳定工作且使信噪比得到理想的改善.文中给出了具体的数学推导及计算机仿真结果,验证了算法的有效性.
Abstract:
On the basis of the difference of power spectrum density (PSD) between narrow band interference (NBI) and useful signal, this paper investigates the use of a spectrum domain adaptive filtering algorithm with feedback to overcome the defects of the time domain adaptive FIR filtering, which suffers from the increase both in number and JSR of NBI. Mathematical derivation as well as computer simulation results are presented to verify the validity of the proposed algorithm.

参考文献/References:

[1] 朱近康.扩频系统及其应用.合肥:中国科技大学出版社,1993,21～29
[2] 仇佩亮,姚庆栋.扩频通信中窄带干扰抑制的非线性滤波技术.通信学报,1995,16(3):22～26
[3] Ketchnm J W,Proakis J G.Adaptive algorithm for estimating and suppressing narrow-band interference in PN spread spectrum system.IEEE Trans Commun,1982,COM-30:913～924
[4] Li L,Milstein L B.Rejection of narrow band interference in PN spread spectrum using transversal filters.IEEE Trans Commun,1982,COM-30:925～928
[5] Saulnier G J.Suppression of narrow band Jammers in a spread spectrum receiver using transform domain adaptive filtering.IEEE Journal on Selected Areas in Commun,1992,JSA-40:742～745

相似文献/References:

[1]卢毅,韩志锟,陈瑜.基于能量比预处理的FFT窄带滤波方法[J].东南大学学报(自然科学版),2010,40(5):948.[doi:10.3969/j.issn.1001-0505.2010.05.013]
　Lu Yi,Han Zhikun,Chen Yu.FFT narrowband filtering method based on energy-ratio pretreatment[J].Journal of Southeast University (Natural Science Edition),2010,40(4):948.[doi:10.3969/j.issn.1001-0505.2010.05.013]

备注/Memo

备注/Memo:
第一作者:男,1965年生,博士研究生,副教授.
更新日期/Last Update: 1999-07-20