| 基于GS算法的天线方向图零陷加宽方法 |
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| 引用本文： | 陶青长,高梅国,黄桂根.基于GS算法的天线方向图零陷加宽方法[J].北京理工大学学报,2006,26(9):836-839. |
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| 作者姓名： | 陶青长 高梅国 黄桂根 |
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| 作者单位： | 北京理工大学,信息科学技术学院电子工程系,北京,100081;北京理工大学,信息科学技术学院电子工程系,北京,100081;北京理工大学,信息科学技术学院电子工程系,北京,100081 |
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| 摘 要： | 为了自适应数字波束形成(ADBF)中应用Gram-Schmidt(GS)算法使天线方向图自适应零陷加宽,通过构造附加离散个干扰源的数学模型重构干扰信号子空间,并修正阵列快拍数据的协方差矩阵,进而对协方差矩阵GS正交化.在干扰噪声较大时,适当调整附加干扰源的位置和个数,得到期望的零陷宽度.算法简单易行,在传统GS算法基础上所增加的运算量很小.仿真证明了该方法的有效性.
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| 关 键 词： | 自适应数字波束形成(ADBF) Gram-Schmidt正交化 零陷加宽 |
| 文章编号： | 1001-0645(2006)09-0836-04 |
| 收稿时间： | 04 13 2006 12:00AM |
| 修稿时间： | 2006年4月13日 |
Adapted Pattern Trough Widening Technique on GS Algorithm |
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| TAO Qing-chang,GAO Mei-guo and HUANG Gui-gen.Adapted Pattern Trough Widening Technique on GS Algorithm[J].Journal of Beijing Institute of Technology(Natural Science Edition),2006,26(9):836-839. |
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| Authors: | TAO Qing-chang GAO Mei-guo and HUANG Gui-gen |
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| Institution: | Department of Electronic Engineering, School of Information Science and Technology, Bejing Institute of Technology, Beijing 100081, China |
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| Abstract: | To widen adapted antenna pattern troughs on Gram-Schmidt(GS) algorithm in adaptive digital beamforming(ADBF),a mathematical model of adding more discrete interferring sources was constructed to change the interferring signal subspace,and then modified the covariance matrix of array snapshot data,while furthermore GS orthogonalized the covariance matrix.In the condition of high interference noses,adjusting the position and number of discrete interferring sources can obtain the expected trough width.The method is simple,easy to use and adds few load based on conventional GS algorithm.Computer simulation results showed validity of the proposed method. |
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| Keywords: | adaptive digital beamforming(ADBF) Gram-Schmidt orthogonal troughs widen |
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