基于核典型相关分析的五元平面十字阵无源定位算法  

Five-element planar cross array passive location based on kernel canonical correlation analysis

作　　者：禹华钢[1] 高俊[1] 黄高明[1] 

机构地区：[1]海军工程大学电子工程学院,湖北武汉430033

出　　处：《系统工程与电子技术》2011年第8期1707-1712,共6页Systems Engineering and Electronics

基　　金：中国博士后科学基金(20080431379;200902671);国家高技术研究发展计划(863计划)(2010AA7010422);湖北省自然科学基金(2009CDB031)资助课题

摘　　要：基于五元平面十字阵的时差定位准确度和灵敏度都相对较高,在无源定位中具有广阔的应用前景。针对时差定位抗干扰性能差和噪声影响的问题,提出采用核典型相关分析盲源分离算法在辐射源信号先验信息未知的情况下分离天线阵接收的混合信号,然后将分离后的信号进行相关分析获得时差的估计,用以改进时差估计和定位性能。通过仿真实验,可以看到本文提出的基于核典型相关分析的时差定位方法能够取得更稳定、准确的结果,而且实现简单,能充分满足实际应用的要求。It is an urgent task to improve the passive location precision.To solve the problem that time difference passive location is sensitive to interference and noise,this paper proposes a five-element cross array passive location algorithm based on kernel canonical correlation analysis.The novel blind source separation algorithm based on kernel canonical correlation analysis is investigated firstly,and then the estimation of time difference obtained from correlative analysis is used to improve time difference and location performance.The simulation results show that the implementation of this location method is relatively simple and effective,which can satisfy the demand of engineering application.

关 键 词：无源定位 时差估计 盲源分离 五元平面十字阵 核典型相关分析 

分 类 号：TN97[电子电信—信号与信息处理]