[1]苏成晓,罗景青,樊甫华.基于联合子空间的宽带弱信号测向算法[J].探测与控制学报,2013,(03):51-55.
 SU Chengxiao,LUO Jingqing,FAN Fuhua.Wideband DOA Estimation of Weak Signals Based on Joint Subspace[J].,2013,(03):51-55.
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基于联合子空间的宽带弱信号测向算法()
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《探测与控制学报》[ISSN:1008-1194/CN:61-1316/TJ]

卷:
期数:
2013年03期
页码:
51-55
栏目:
出版日期:
2013-07-26

文章信息/Info

Title:
Wideband DOA Estimation of Weak Signals Based on Joint Subspace
文章编号:
1008-1194(2013)-03-0051-05
作者:
苏成晓罗景青樊甫华
(解放军电子工程学院,安徽 合肥 230037)
Author(s):
SU ChengxiaoLUO JingqingFAN Fuhua
(Electronic Engineering Institute of PLA, Hefei 230037,China)
关键词:
宽带强干扰弱信号子空间测向
Keywords:
wideband strong jamming weak signal subspace direction finding
分类号:
TN911.7
文献标志码:
A
摘要:
为了解决强干扰环境下宽带多波束系统中弱信号的测向问题,提出了一种基于干扰-噪声联合子空间的弱信号超分辨测向算法。该算法将强干扰对应特征向量并入噪声子空间,构造干扰-噪声联合子空间代替噪声子空间进行估计,干扰抑制与弱信号测向同步进行。分析和仿真实验表明,算法能够抑制强干扰的影响,实现邻近弱信号的正确测向,提高了弱信号的分辨概率。
Abstract:
In order to correctly estimate weak signals’ directions with strong jamming for wideband beam forming system, a super-resolution direction finding algorithm for weak signals based on jamming-noise joint subspace was proposed. Eigenvectors that represent strong jamming were combined with noise subspace to construct jamming-noise joint subspace, which was used to estimate weak signals’ directions of arrival (DOA) instead of noise subspace. Jamming suppression and weak signals’ DOA estimation were done simultaneously. Analysis and computer simulations showed that the proposed algorithm could suppress strong jamming effectively and got the correct DOA estimation of nearby weak signals, and the resolution probability of weak signals was improved.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2013-02-25
基金项目:国家自然科学基金资助(61171170)

作者简介:苏成晓(1986-),男,河南舞钢人,博士研究生。

更新日期/Last Update: 2014-02-26