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.
作者
李海涛
王易川
孙世林
程玉胜
程健
LI Haitao;WANG Yichuan;SUN Shilin;CHENG Yusheng;CHENG Jian(Navy Submarine Academy,Qingdao 266199,China)
出处
《应用声学》
CSCD
北大核心
2020年第2期253-258,共6页
Journal of Applied Acoustics
关键词
矢量直线阵
低频线谱
线谱提取
Vector sensor line array
Low frequency line spectrum
Line spectrum extraction
