基于海洋浮标的电场干扰特性分析及信号检测方法  

Analysis of Electric Field Interference Characteristics and Signal Detection Method Based on Ocean Buoys

作　　者：孙强[1] 张伽伟[1] 喻鹏 SUN Qiang;ZHANG Jiawei;YU Peng(College of Weapon Engineering,Naval University of Engineering,Wuhan 430033,Hubei,China;Weaponry Department,Naval Petty Officer Academy,Bengbu 233000,Anhui,China)

机构地区：[1]海军工程大学兵器工程学院,湖北武汉430033 [2]海军士官学校兵器系,安徽蚌埠233000

出　　处：《兵工学报》2023年第3期857-864,共8页Acta Armamentarii

基　　金：国家自然科学基金项目(51509252)。

摘　　要：为解决深远海电场信号获取和目标探测问题,对深海电场探测剖面浮标实测数据进行干扰电场特性分析,分析结果表明该浮标在深海剖面电场测量中,晃动干扰电场能量主要集中在0.5 Hz以下,且随着深度的增加而减小,干扰电场可低至0.1μV/m的量级。在干扰特性分析的基础上,为解决浮标平台的电场信号检测问题,提出基于自适应门限线谱能量加和的改进检测方法。仿真及实测实验结果表明:改进算法可有效检测目标电场信号,并在保证目标检测概率的情况下,减小了虚警概率。To solve the problems of electric field acquisition and target detection in the deep ocean environment,the interference characteristics of an electric field measured by a deep sea electric field detection buoy are analyzed.It has been confirmed that the energy of buoy shaking interference is primarily below 0.5 Hz and decreases with depth increases.The interference of the electric field can be reduced to 0.1μV/m.Then,to detect the electric field signals of the buoy platform,an improved detection method based on adaptive threshold line spectrum energy sum is proposed,based on the analysis of interference characteristics.Simulation and experimental results show that the proposed improved algorithm can effectively detect the target electric field signals and reduce the false alarm probability while ensuring target detection probability.

关 键 词：电场 海洋浮标 干扰特性 目标检测 

分 类 号：TB559[理学—物理]