舰船低频水压场特征分析及其探测技术研究  

Characteristics Analysis and Detection Technology of Ship Low Frequency Water Pressure Field

作　　者：王嘉睿 姜润翔 张伽伟 朱岿 WANG Jia-rui;JIANG Run-xiang;ZHANG Jia-wei;ZHU Kui(School of Electrical Engineering,Naval University of Engineering,Wuhan 430033,China;School of Ordnance Engineering,Naval University of Engineering,Wuhan 430033,China)

机构地区：[1]海军工程大学电气工程学院,武汉430033 [2]海军工程大学兵器工程学院,武汉430033

出　　处：《武汉理工大学学报》2023年第9期143-148,共6页Journal of Wuhan University of Technology

摘　　要：为了提高水下探测的能力,首先基于声场、电场、磁场、水压场联合测量装置,获取了30余艘不同目标的物理场信号,其次在实测数据分析的基础上,揭示了舰船水压场信号除了包含0.5 Hz以下频段内的信号外,还存在0.5~40 Hz的低频水压场信号,且该信号存在明显的低频线谱特征,在200~300 m外可实现可靠探测;最后分析了低频水压场与轴频电场的相关性,结果表明,低频压力信号的线谱与轴频电场信号的线谱在部分频点存在相关性和共源性,这为水压场、电场联合探测提供了一种新的技术途径。In order to improve the ability of underwater detection,the physical field signals of more than 30 different targets were obtained based on the joint measurement device of sound field,electric field,magnetic field and water pressure field.Secondly,based on the analysis of measured data,it was revealed that ship water pressure field signals included signals in the frequency band below 0.5 Hz,but also existed low frequency water pressure field signals between 0.5~40 Hz.And the signal has obvious low frequency line spectrum characteristics,reliable detection can be achieved at 200~300 m.Finally,the correlation between the low frequency water pressure field and the axial frequency electric field is analyzed.The results show that the low frequency pressure signal line spectrum and the axial frequency electric field signal line spectrum are correlated and co-source at some frequency points,which provides a new technical approach for the combined detection of water pressure field and electric field.

关 键 词：舰船 水压场 声场 轴频电场 振幅谱 线谱检测 

分 类 号：TP216[自动化与计算机技术—检测技术与自动化装置]