抑制大范围海面干扰的水中空域矩阵滤波技术研究

项目名称： 抑制大范围海面干扰的水中空域矩阵滤波技术研究

项目编号： No.61271443

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 无线电电子学、电信技术

项目作者： 章新华

作者单位： 中国人民解放军海军大连舰艇学院

项目金额： 91万元

中文摘要： 港口航道、基地要塞是敌方潜艇实施封锁作战的重点，针对这些海域的水下目标预警探测是反封锁作战的基本前提。由于这些海域的海面目标多，对水下目标探测而言形成了近程干扰，严重影响水下目标的预警探测效果。本基金以此为背景，主要研究：单频和宽带大距离范围的距离深度域矩阵滤波器设计及其性能分析；距离深度域矩阵滤波器的主要影响因素及其规律；通过分析阵型扰动、环境参数失配、频率失配等因素对距离深度域矩阵滤波器性能的影响，提出距离深度域矩阵滤波器对各种工作环境的适应性方法。在此基础上，研究距离深度域矩阵滤波器对大范围海面多目标干扰抑制的实现技术。通过仿真数据检验和海上数据检验，形成可行的距离深度域矩阵滤波海面目标干扰抑制技术，在固定岸基于垂直阵上初步实现大距离范围内的海面多目标干扰抑制，在海面多目标干扰下具有更好的水下目标探测性能，为监视海域的水下防御作战提供更加清晰、有效的水下目标指示。

中文关键词： 水声信号处理；矩阵滤波；声纳；声场匹配；水声探测

英文摘要： Harbor port, channel and the fortress are the focal places which paid attention by the enemy's submarine in blockade warfare. Early-stage warning for underwater targets in these places is the basic premise of the anti-blockade warfare. The short-range interferences generated by the surface targets which seriously affect the performance of the early-stage warning and detection in these places. Based on these situations, the contents of the Fund mainly include: single frequency and broadband large range distance-depth domain matrix filter design and performance analysis, the key factors affecting distance-depth domain matrix filters and its laws, by analysising the array's disturbance, environment parameter mismatches and frequency mismatch, we could propose flexibility methods for the distance-depth domain matrix filters to handle various work environments. We will research technology for the distance-depth domain matrix filters to suppress a wide range of multi-target interference on the sea. Simulation data and sea trial data will be used to check and form the reliable technique for designing distance-depth domain matrix filters to suppress surface interference in the sea. This technique will be applied in the fixed shore-based vertical array detection system for surface multi-targets interference suppression i

英文关键词： underwater acoustic signal processing；matrix filtering；sonar；acoustic field matching；underwater acoustic detection