深海甚低频水声与地震波场的联合探测试验  

Experimental study on deep-sea VLF passive detection by combining acoustic and seismic wave fields

作　　者：董海涛[1,2] 王海燕 申晓红[1,2] 马石磊[1,2] DONG Haitao;WANG Haiyan;SHEN Xiaohong;MA Shilei(School of Marine Science and Technology,Northwestern Polytechnical University,Xi′an 710072,China;Key Laboratory of Ocean Acoustics and Sensing(Northwestern Polytechnical University),Ministry of Industry and Information Technology,Xi′an 710072,China;School of Electronic Information and Artificial Intelligence,Shaanxi University of Science and Technology,Xi′an 710021,China)

机构地区：[1]西北工业大学航海学院,陕西西安710072 [2]海洋声学信息感知工业和信息化部重点实验室(西北工业大学),陕西西安710072 [3]陕西科技大学电子信息与人工智能学院,陕西西安710021

出　　处：《哈尔滨工程大学学报》2021年第7期1009-1014,共6页Journal of Harbin Engineering University

基　　金：国家自然科学基金项目(61571365);国防创新特区项目(17XX00104602).

摘　　要：为我国深海水中兵器甚低频声场与地震波场联合引信技术提供可行性依据,设计并研制了深海自容式三分量地震波传感系统,利用深海坐底潜标搭载在我国南海海域(布深1825 m)开展了实船目标特性感知试验。通过设置走航测线,获取了目标深海甚低频水声场与地震波场实测数据,对比分析结果表明了舰船甚低频水声场与地震波场对目标探测的贡献具有共性与差异性。水声场因包含更丰富的周期窄带信息而更具主导性,而地震波场用于检测目标近场通过时明显优于水声场,甚至存在水声场无法感知的独特谱线,对三分量地震波场的实船噪声包络解调分析亦表明其用于感知螺旋桨轴频和叶频关键特征的优势。鉴于此,联合舰船甚低频水声场与地震波场对水中兵器探测目标、抗扫、抗诱骗等具有积极作用,发展深海甚低频联合引信技术是必要且可行的。A deep-sea,self-contained,three-component seismic wave sensing system is designed in this work to provide the feasibility basis of combined fuze technology of very low frequency(VLF)acoustic and seismic wavefields.A real ship target sensing test is conducted in the South China Sea(depth:1825 m)with a deep-sea bottom-sitting subsurface buoy sensing system.The test data of the acoustic field and seismic wave field of a moving ship are obtained by setting a survey line.Comparative analysis of these data indicates that the contributions to target detection by the acoustic and seismic wave fields have similarities and differences.The underwater acoustic field is more dominant because of its abundant periodical narrow-band information,while the seismic wave field is superior to the acoustic field in terms of the detection of near field pass of target;there are even some unique spectral lines that cannot be found in the acoustic field.The real ship noise envelope spectrum analysis of three-component seismic wave also indicates that it has an advantage in sensing the key characteristics of propeller shaft frequency and blade frequency.Thus,the combined analysis of ship VLF acoustic field and seismic wave field has a critical role in the target detection,mine sweeping resistance,decoy resistance,and so on,of the underwater armament.This is a feasible and necessary component of developing deep-sea VLF combined fuze technology.

关 键 词：兵器科学与技术 深海潜标 传感系统 被动探测 舰船甚低频特性 水声场 地震波场 联合引信 

分 类 号：TB566[交通运输工程—水声工程]