我们的网站为什么显示成这样？

可能因为您的浏览器不支持样式，您可以更新您的浏览器到最新版本，以获取对此功能的支持，访问下面的网站，获取关于浏览器的信息：

|本期目录/Table of Contents|

基于时变滤波器的线性调频干扰抑制(PDF)

《探测与控制学报》[ISSN:1008-1194/CN:61-1316/TJ]

期数:
2009年06期
页码:
64
栏目:
出版日期:
2009-12-26

文章信息/Info

Title:
LFM Interference Suppression Based on Time-variant Filter
文章编号:
1008-1194(2009)06-0064-05
作者:
路翠华1; 宋扬2; 谢鑫1; 李飞1
1.海军航空工程学院，山东 烟台264001；2.海军装备部航空技术保障部，北京100083
Author(s):
LU Cui-hua1; SONG Yang2; XIE Xin1; LI Fei1
1.Naval Aeronautical and Astronautical University,Yantai 264001,China;
2.Aeronautics Technology Support Branch of NED,Beijing 100083,China
关键词:
引信; 伪码调相; 脉冲多普勒; LFM干扰; 自适应时变干扰抑制滤波器; 分数阶傅里叶变换
Keywords:
fuze; pseudo-random code phase-modulation; pulse-doppler; LFM interference; adaptive time-variant interference suppressing filter; fractional fourier transform
分类号:
TJ43；TN911.7
DOI:
.
文献标识码:
A
摘要:
为提高伪码调相脉冲多普勒引信抗线性调频(LFM)干扰性能，将基于分数阶傅里叶变换(FRFT)的自适应时变干扰抑制滤波器应用到伪码调相脉冲多普勒引信中，用来对LFM干扰进行抑制。干扰抑制的效果与LFM信号参数的估计精度有关，为解决计算量与估计精度的矛盾，采用先大步长、后小步长两步估计法。仿真结果表明自适应时变干扰抑制滤波器显著改善了伪码调相脉冲多普勒引信的相关输出。
Abstract:
In order to improve the anti-LFM (linear frequency modulation) interference performance of pseudo-random code phase-modulation and pulse-doppler combined fuze,adaptive time-variant interference suppressing filter based on FRFT (fractional fourier transform) is used to suppress LFM-interference in the combined fuze.The performance of interference suppression is related to the estimated accuracy of LFM signal parameters.In order to solve the contradiction between calculation amount and estimated accuracy of parameters,the method of two-step estimation is used which means firstly,a big step is used and then a small step is used.The simulation results show that the adaptive time-variant interference suppressing filter can suppress LFM-interference effectively and can improve the fuze correlation output obviously.

参考文献/References

［1］张陆游,任宏滨,何广军.伪码调相与脉冲多普勒复合引信的抗干扰原理分析［J］.弹箭与制导学报,2005,25(1):438-440.
ZHANG Lu-you,REN Hong-bin,HE Guang-jun.Analysis of anti-noise theory of pseudo-random code phase-modulation and pulse-doppler combined fuze［J］.Journal of Projectiles,Rockets,Missiles and Guidance,2005,25(1):438-440.
［2］张淑宁,赵惠昌,吴兵.基于分数阶傅里叶变换的伪码体制引信线性调频干扰抑制技术［J］.兵工学报,2006,27(1):32-35.
ZHANG Shu-ning,ZHAO Hui-chang,WU Bing.LFM interference excision of pseudo random binary code fuze based on FRFT［J］.Acta Armamentarii,2006,27(1):32-35.
［3］张淑宁.伪码调相引信抗典型干扰的信号处理方法研究［D］.南京:南京理工大学,2006.
［4］殷国平,曹旭平,崔占忠.伪码调相与线性调频复合调制引信抗干扰及多普勒容限性能研究［J］.探测与控制学报,2006,28(3):35-38.
YIN Guo-ping,CAO Xu-ping,CUI Zhan-zhong.Research on anti-interference and doppler margin performance of complex modulation fuze［J］.Journal of Detection & Control,2006,28(3):35-38.
［5］刘己斌,赵惠昌,杨方.伪码调相与脉冲多普勒复合引信的抗噪声性能分析［J］.探测与控制学报,2003,25(3):44-47.
LIU Ji-bin,ZHAO Hui-chang,YANG Fang.Analysis of anti-noise performance of pseudo-random code phase-modulation and pulse-doppler combined fuze［J］.Journal of Detection & Control,2003,25(3):44-47.
［6］涂友超,赵惠昌,邓建平.伪码调相正弦调频复合引信抗瞄准式噪声调幅干扰性能研究［J］.探测与控制学报,2008,30(1):29-33.
TU You-chao,ZHAO Hui-chang,DENG Jian-ping.Performance research on anti-noise AM spot jamming of PRBC-SFM combined fuze［J］.Journal of Detection & Control,2008,30(1):29-33.
［7］夏彩杰,王爱华,安建平.扫频干扰的自适应时变抑制研究［J］.计算机工程,2008,34(4):37-39.
XIA Cai-jie,WANG Ai-hua,An Jian-ping.Research on adaptive time-varying suppression of frequency sweeping interference［J］.Computer Engineering,2008,34(4):37-39.
［8］张庆辉,栗苹,钱龙,等.基于时频分析的伪码调相引信自适应干扰对消器设计［J］.兵工学报,2006,27(5):807-810.
ZHANG Qing-hui,LI Ping,QIAN Long,et al.The design of adaptive interference cancellation unit of pseudo-random code phase modulation fuze based on time-frequency analysis［J］.Acta Armamentarii,2006,27(5):807-810.
［9］XIA Xiang-gen.Discrete chirp-fourier transform and Its application to chirp rate estimation［J］.IEEE Transactions on Signal Processing,2000,48(11):3 122-3 133.
［10］TAO Ran,PING Xian-jun,ZHAO Xing-hao.A novel discrete fractional Fourier transform［Z］.CIE international Conference of Radar, Beijing,2001.
［11］赵兴浩,邓兵,陶然.分数阶傅里叶变换数值计算中的量纲归一化［J］.北京理工大学学报,2005,25(4):360-364.
ZHAO Xing-hao,DENG Bing,TAO Ran.Dimensional normalization in the digital computation of the fractional fourier transform［J］.Journal of Beijing Institute of Technology,2005,25(4):360-364.

备注/Memo

备注/Memo:
*收稿日期：2009-06-01    修回日期：2009-07-24
作者简介：路翠华(1978-)，女，山东烟台人，博士研究生，研究方向：引信干扰信号自适应抑制。E-mail：xiaomumu1978@yahoo.com.cn。
更新日期/Last Update: 2010-01-07