文章摘要
邓新文,许琦,高守勇.混响背景下应用岭回归对角加载的空时处理方法[J].声学技术,2011,(2):188~192
混响背景下应用岭回归对角加载的空时处理方法
Ridge-Regression-Diagonal-Loading-based space-time adaptive processing for active sonar in reverberation
投稿时间:2010-09-21  修订日期:2010-12-17
DOI:
中文关键词: 主动声纳  空时自适应联合处理  岭回归对角加载  样本协方差矩阵求逆法
英文关键词: active sonar  Space-time Adaptive Processing(STAP)  Ridge Regression diagonal loading  SMI-based space-time filter
基金项目:
作者单位E-mail
邓新文 广东湛江91388部队, 广东湛江, 524022  
许琦 中国科学院声学研究所, 北京, 100190 floralway@163.com 
高守勇 广东湛江91388部队, 广东湛江, 524022  
摘要点击次数: 1178
全文下载次数: 846
中文摘要:
      研究了空时自适应联合处理方法在主动声纳领域的应用。针对有限空时快拍数影响最优空时滤波器性能的问题,利用Capon谱估计器与最优空时处理器表达式的相似性,提出将岭回归(Ridge Regression)对角加载方法推广到空时联合自适应处理中。仿真结果表明,新的对角加载方法提高了基于样本协方差矩阵求逆法的空时滤波性能,能够有效抑制海面混响和干扰带来的不良影响。
英文摘要:
      This paper presents a space-time adaptive processing(STAP) method for the applications in active sonar.In order to address the problem about the performance of optimal space-time filter decreases with limited number of space-time data snapshots,by utilizing the comparability of the expression about Capon spectral estimator and optimal space-time filter,the Ridge Regression diagonal loading method is proposed for STAP applications.The simulation shows,the new diagonal loading method improves the performance of SMI-based space-time filter,and is able to suppress the surface reverberation and interference effectively.
查看全文   查看/发表评论  下载PDF阅读器
关闭