Page 95 - 《应用声学》2020年第2期

第 39 卷 第 2 期 Vol. 39, No. 2
2020 年 3 月 Journal of Applied Acoustics March, 2020

⋄ 研究报告 ⋄

基于矢量线阵的目标低频线谱提取方法

李海涛 † 王易川 孙世林 程玉胜 程 健

(海军潜艇学院 青岛 266199)

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。
关键词：矢量直线阵；低频线谱；线谱提取
中图法分类号: TB566 文献标识码: A 文章编号: 1000-310X(2020)02-0253-06
DOI: 10.11684/j.issn.1000-310X.2020.02.012

Fusion extraction method of target low frequency line spectrum based on

vector sensor line array

LI Haitao WANG Yichuan SUN Shilin CHENG Yusheng CHENG Jian

(Navy Submarine Academy, Qingdao 266199, China)

Abstract: 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.
Keywords: Vector sensor line array; Low frequency line spectrum; Line spectrum extraction

2019-07-01 收稿; 2019-10-23 定稿
作者简介: 李海涛 (1988– ), 男, 山东泰安人, 博士研究生, 研究方向: 水声工程。
通信作者 E-mail: lihaitao120110@163.com
†