| 一种基于自适应谱线分离的大功率抑制干扰方法 |
| |
| 引用本文： | 杨玲,蔡成林,李孝辉.一种基于自适应谱线分离的大功率抑制干扰方法[J].科技导报(北京),2009,27(12). |
| |
| 作者姓名： | 杨玲 蔡成林 李孝辉 |
| |
| 作者单位： | 杨玲,YANG Ling(湖南人文科技学院,湖南娄底,417001);蔡成林,CAI Chenglin(湖南人文科技学院,湖南娄底,417001;中国科学院国家授时中心,陕西临潼,710600;中国科学院研究生院,北京,100049);李孝辉,LI Xiaohui(中国科学院国家授时中心,陕西临潼,710600)
|
| |
| 基金项目： | 湖南省自然科学基金，湖南人文科技学院青年课题 |
| |
| 摘 要： | 基于有效抑制各种大功率窄带和宽带干扰这一目的,提出了一种利用自适应谱线增强器分离并抑制的方法.该方法通过多个IIR格型陷波器级联将干扰信号和有用信号完全分离,再通过减法器恢复出待处理的期望信号.讨论了基于相位一致性逼近准则对多个IIR格型陷波器级联系数的全局化设计,并通过一个跳频信号检测实例,分析了干扰信号的分离和消除程度.仿真结果表明,除同频干扰外该方法能将大功率窄带和宽带千扰几乎完全分离和抑制,为恶意干扰环境下的通信接收机增强免疫力提供了一种有效的解决方法.
|
| 关 键 词： | 窄带干扰 宽带干扰 IIR格型陷波器 自适应谱线增强器 跳频信号 |
A Large Power Interference Suppression Method Based on an Adaptive Spectral Line Separation |
| |
| YANG Ling,CAI Chenglin,,LI Xiaohui . Hunan Institute of Humanities,Science , Technology,Loudi ,Hunan Province,China . National Time Service Center,Chinese Academy of Sciences,Lintong ,Shaanxi Province,China . Graduate School,Beijing ,China.A Large Power Interference Suppression Method Based on an Adaptive Spectral Line Separation[J].Science & Technology Review,2009,27(12). |
| |
| Authors: | YANG Ling CAI Chenglin LI Xiaohui Hunan Institute of Humanities Science Technology Loudi Hunan Province China National Time Service Center Chinese Academy of Sciences Lintong Shaanxi Province China Graduate School Beijing China |
| |
| Institution: | YANG Ling1,CAI Chenglin1,2,3,LI Xiaohui2 1. Hunan Institute of Humanities,Science , Technology,Loudi 417000,Hunan Province,China 2. National Time Service Center,Chinese Academy of Sciences,Lintong 710600,Shaanxi Province,China 3. Graduate School,Beijing 100049,China |
| |
| Abstract: | For an effective suppression of large power interference including wide -band (WBI) and narrow -band (NBI) ones, a separation and suppression method based on an adaptive line enhancer (ALE) is proposed. The jamming signals can be separated from the useful signals through infinite impulse response (IIR) multiple lattice notch filter designed as all -pass filter and the expected signals can be restored through the subtracter. The globalization algorithm of 2L all-pass IIR lattice notch filter's coefficients i... |
| |
| Keywords: | |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
