| 一种改进的导航信号窄带干扰抑制方法 |
| |
| 引用本文： | 施荣华,王涛,董健,易大江,郭迎.一种改进的导航信号窄带干扰抑制方法[J].计算机工程,2012,38(23):67-70. |
| |
| 作者姓名： | 施荣华 王涛 董健 易大江 郭迎 |
| |
| 作者单位： | 1. 中南大学信息科学与工程学院,长沙,410083
2. 湖南创越电子科技有限公司,长沙,410205 |
| |
| 基金项目： | 中国博士后科学基金资助项目，教育部博士学科点专项科研基金资助项目，中南大学青年教师助推专项基金资助项目 |
| |
| 摘 要： | 针对导航信号中的窄带干扰问题，提出一种基于频域处理的最小均方(LMS)窄带干扰抑制方法。该方法在传统的LMS滤波器结构中引入权值泄漏因子a，以减少导航信号中有用信号在滤波过程中的损失。通过采用权值系数稳定度d的判断处理去除导航信号中的变频窄带干扰。仿真结果表明，该方法对固频和变频的窄带干扰都有较好的抑制效果，可提高导航接收机的抗干扰性能。
|
| 关 键 词： | 窄带干扰 加窗损耗 泄漏因子 权值系数稳定度 最小均方 导航接收机 |
| 收稿时间： | 2012-02-13 |
An Improved Method for Narrowband Interference Suppression in Navigation Signal |
| |
| SHI Rong-hua
,
WANG Tao
,
DONG Jian
,
YI Da-jiang
,
GUO Ying.An Improved Method for Narrowband Interference Suppression in Navigation Signal[J].Computer Engineering,2012,38(23):67-70. |
| |
| Authors: | SHI Rong-hua WANG Tao DONG Jian YI Da-jiang GUO Ying |
| |
| Affiliation: | (1. School of Information Science and Engineering, Central South University, Changsha 410083, China; 2. Hisky Electronic Scientific and Technical Company, Changsha 410205, China) |
| |
| Abstract: | In order to suppress narrowband interference in navigation signal, an improved method based on frequency-domain Least Mean Square(LMS) is proposed. By using the weight leakage factor, the method can reduce the loss of the desired signal in filter process. Meanwhile, with the judgment of the weight coefficient stability, the method can effectively suppress variable frequency narrowband interference. Simulation results show that the proposed method has the effectiveness in suppressing the narrowband interferences of both fixed and variable frequency, it can greatly improve the anti-jamming performance of the navigation receiver. |
| |
| Keywords: | narrowband interference windowing degradation leakage factor weight coefficient stability Least Mean Square(LMS) navigation receiver |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《计算机工程》浏览原始摘要信息 |
|
点击此处可从《计算机工程》下载全文 |
|
