| 阻塞矩阵方法对消主瓣干扰 |
| |
| 引用本文： | 苏保伟,王永良,李荣峰,周良柱. 阻塞矩阵方法对消主瓣干扰[J]. 系统工程与电子技术, 2005, 27(11): 1830-1832 |
| |
| 作者姓名： | 苏保伟 王永良 李荣峰 周良柱 |
| |
| 作者单位： | 1. 国防科技大学电子科学与工程学院,湖南,长沙,410073
2. 空军雷达学院重点实验室,湖北,武汉,430019 |
| |
| 基金项目： | 国家自然科学基金(60272086)，高校优秀青年教师教学科研奖励计划(TRAPOYT)基金资助课题 |
| |
| 摘 要： | 当存在主瓣干扰且有期望信号混入情况下,用常规自适应波束形成方法进行自适应干扰对消,不但会引起主瓣变形,而且期望信号也会被抑制,从而影响对消性能。提出一种新的阻塞矩阵方法,对接收数据进行预处理,消除它们对计算数据协方差阵的影响,再用其它方法确定自适应权值。理论分析和计算机仿真表明,用阻塞矩阵方法可以获得较大的性能提升。
|
| 关 键 词： | 自适应波束形成 主瓣干扰 阵列信号处理 |
| 文章编号： | 1001-506X(2005)11-1830-03 |
| 修稿时间： | 2004-10-02 |
Mainlobe interference cancelling method via block matrix |
| |
| SU Bao-wei,WANG Yong-liang,LI Rong-feng,ZHOU Liang-zhu. Mainlobe interference cancelling method via block matrix[J]. System Engineering and Electronics, 2005, 27(11): 1830-1832 |
| |
| Authors: | SU Bao-wei WANG Yong-liang LI Rong-feng ZHOU Liang-zhu |
| |
| Affiliation: | SU Bao-wei~ |
| |
| Abstract: | When target signal is in the sample data,the performance of adaptive digital beamformer(ADBF) will be degraded.If the interference falls into mainlobe,the mainbeam will be distorted with conventional ADBF.A new block matrix(NBM) method is proposed which preprocesses the sample data via a block matrix so that the influence of signal-of-interest(SOI) and mainlobe jamming is diminished.This method avoids mainlobe distortion and has the better performance of interference cancelling than the direct sample matrix inversion (SMI) method.The results of simulation support the theoretical predictions. |
| |
| Keywords: | adaptive beamform mainlobe interference canceling array signal processing |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
