基于矢量线阵的目标低频线谱提取方法  

Fusion extraction method of target low frequency line spectrum based on vector sensor line array

作　　者：李海涛[1] 王易川[1] 孙世林 程玉胜[1] 程健[1] LI Haitao;WANG Yichuan;SUN Shilin;CHENG Yusheng;CHENG Jian(Navy Submarine Academy,Qingdao 266199,China)

机构地区：[1]海军潜艇学院,青岛266199

出　　处：《应用声学》2020年第2期253-258,共6页Journal of Applied Acoustics

摘　　要：针对矢量线阵跟踪目标低频线谱提取问题,提出了一种矢量线阵低频线谱提取方法,其中利用拉平后线谱的均方差乘一比例因子设为门限的方法,可以有效提取线谱成分;并且研究了利用互谱中高信噪比线谱测向剔除干扰线谱方法,准确提取出目标特征线谱,可较有效解决矢量线阵左右舷目标低频线谱特征相互干扰问题。上述矢量线阵低频线谱提取方法,得到了海试数据的初步验证。Aiming at the problem of extracting the low-frequency line spectrum of the target tracked by the vector sensor line array(VLA),and a kind of VLA low frequency line spectrum fusion extraction method is proposed.It is proposed that the mean square error multiplied by a scale factor can be used to set the threshold,which can effectively extract line spectrum components.The use of high-signal-to-noise ratio line-spectrum direction-finding method to eliminate the interference line spectrum to accurately extract the target feature line spectrum is studied,which can effectively solves the problem of mutual interference of low-frequency line spectrum features of VLA port and starboard targets.The above VLA low frequency line spectrum extraction method has been preliminarily validated by sea test data.

关 键 词：矢量直线阵 低频线谱 线谱提取 

分 类 号：TB566[交通运输工程—水声工程]