多波束系统搜救水下目标的探测深度计算  

Underwater Sounding Calculation of Multibeam Echosounder System for Underwater Target Search and Rescue

作　　者：梁川 贾帅东[1,4] 刘一帆[3] LIANG Chuan;JIA Shuaidong;LIU Yifan(Department of Military Oceanography and Hydrography&Cartography,Dalian Naval Academy,Dalian 116018,China;No.92150 Unit of PLA,Zhoushan 316017,China;No.91001 Unit of PLA,Beijing 100036,China;Key Laboratory of Hydrographic Surveying and Mapping of PLA,Dalian Naval Academy,Dalian116018,China)

机构地区：[1]海军大连舰艇学院军事海洋与测绘系,辽宁大连116018 [2]中国人民解放军92150部队,浙江舟山316107 [3]中国人民解放军91001部队,北京100036 [4]海军大连舰艇学院海洋测绘工程军队重点实验室,辽宁大连116018

出　　处：《数字海洋与水下攻防》2024年第2期207-214,共8页Digital Ocean & Underwater Warfare

摘　　要：针对多波束测深系统种类、探测模式等因素影响水下目标搜索效能的问题,提出了一种面向水下目标搜索的多波束系统探测深度计算方法。分别对多波束系统等角与等距模式进行探讨,考虑波束间重叠角的影响,由多波束横向分辨率计算公式推导了2种模式的探测深度公式,并将不同波束角度的探测深度进行计算。经过结果比对,总结出等角模式搜索水下目标的探测能力要优于等距模式。最后结合算例,得出多波束探测能力与目标尺寸、海水深度、波束开角有关。A method for calculating the depth of a Multibeam Echosounder System(MBES)for underwater target search is proposed based on factors such as the types and detection modes of MBES.The equiangular and equidistant modes of MBES are discussed separately,taking into account the influence of beam overlapping angles.Two formulas for calculating the depth of each mode are derived from multibeam transverse resolution formula,and the depths of different beam angles are calculated.After comparing the results,it is concluded that the detection capability of the equiangular mode for searching underwater targets is superior to that of the equidistant mode.Finally,a case study is conducted to show that the detection capabilities of MBES are related to target size,water depth,and beam opening angle.

关 键 词：水下目标搜救 多波束测深系统 探测深度 等角模式 等距模式 

分 类 号：P229[天文地球—大地测量学与测量工程]