| 抑制快速运动强干扰的稳健自适应波束形成方法 |
| |
| 引用本文： | 冯杰,孙超,唐建生.抑制快速运动强干扰的稳健自适应波束形成方法[J].信号处理,2007,23(1):93-96. |
| |
| 作者姓名： | 冯杰 孙超 唐建生 |
| |
| 作者单位： | 西北工业大学声学工程研究所,西安,710072 |
| |
| 摘 要： | 针对存在快速运动强干扰时自适应波束形成性能的严重降低,提出了一种稳健的自适应波束形成方法。该方法使用零陷展宽技术修改采样协方差矩阵,使其自动地在干扰方位形成展宽的零陷以抑制运动强干扰,同时采用对角加载技术,以增强此方法对系统误差的稳健性,加载量通过约束扫描向量的误差来确定。仿真结果表明该方法能有效地提高当存在快速运动的强干扰时自适应波束形成的性能。
|
| 关 键 词： | 运动强干扰 自适应波束形成 展宽零陷 稳健 |
| 修稿时间： | 2005年7月25日 |
A robust adaptive beamforming algorithm for suppressing fast-moving strong interferers |
| |
| Feng Jie,Sun Chao,Tang Jiansheng.A robust adaptive beamforming algorithm for suppressing fast-moving strong interferers[J].Signal Processing,2007,23(1):93-96. |
| |
| Authors: | Feng Jie Sun Chao Tang Jiansheng |
| |
| Abstract: | Adaptive beamforming methods are known to degrade in the presence of fast-moving strong interferers.In order to alle- viate the performance degradation,a robust adaptive beamforming algorithm is presented in this paper.Null-broadening technique is used to broaden nulls in the direction of interferers,and at the same time,diagonal loading is used to enhance its robustness.The amount of di- agonal loading can be precisely calculated based on the uncertainty set of the steering vector.The simulation results show that the pro- posed algorithm can not only effectively suppress fast-moving strong interferers,but also is robust to system errors. |
| |
| Keywords: | fast-moving strong interferers robust null-broadening adaptive beamforming |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
