摘要
针对现有亮点模型预报水下航行体声散射特性精细程度不高的问题,建立能反映水下航行体真实线型以及精细声散射特征的亮点模型。采用线性插值算法和分割目标方法建立指挥台和艉部的参数化亮点模型,并采用板块元方法对建模结果进行验证。对包含指挥台和艉部在内的Benchmark潜艇模型声散射特性开展建模研究,并与BASIS方法的标准解进行对比。通过开展Benchmark缩比潜艇模型声散射湖上试验,获取Benchmark缩比潜艇模型目标强度测量结果,并与亮点模型方法进行对比。研究结果表明,建立的指挥台和艉部参数化亮点模型是准确的,将各部件的空间相位信息考虑在内,亮点模型能够预报水下航行体的精细声散射特征。研究结果对水下目标声散射快速预报具有一定的参考价值,在快速时域回波预报方面应用前景广阔。
To deal with the problem of low accuracy of the elementary highlight model in forecasting the acoustic scattering characteristics of underwater vehicles, a highlight model which can reflect the real lines and fine acousitcscattering characteristics of underwater vehicles is established.The linear interpolation algorithm and object segmentation method are used to establish the parametric highlight model of the command station and stern, and the planar elements method is adopted to verify the results.On this basis, the acoustic scattering characteristics of the Benchmark submarine model including the command station and stern are studied and compared with the standard solution of the BASIS method.The target strength experiment results of the Benchmark submarine scale model are obtained through acoustic scattering experiments of the model on lake, and then compared with the method of highlight model.The results show that the proposed model is accurate.Considering the spatial phase information of each component, the highlight model can forecast the acoustic scattering characteristics of underwater vehicles well.The findings of this study can provide insights into the fast prediction of acoustic scattering of underwater targets and have broad application prospects in the fast time-domain echo forecasting.
作者
刘进伟
彭子龙
范军
刘妍
孔慧敏
LIU Jinwei;PENG Zilong;FAN Jun;LIU Yan;KONG Huimin(School of Energy and Power Engineering,Jiangsu University of Science and Technology,Zhenjiang 212100,Jiangsu,China;School of Naval Architecture,Ocean and Civil Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;School of Naval Architecture&Ocean Engineering,Jiangsu University of Science and Technology,Zhenjiang 212100,Jiangsu,China)
出处
《兵工学报》
EI
CAS
CSCD
北大核心
2023年第2期517-525,共9页
Acta Armamentarii
基金
江苏省自然科学基金项目(BK20200995)
基础加强计划技术领域基金项目(2020-JCJQ-JJ-228)
基础加强计划重点项目(2020-JCJQ-ZD-222)。
关键词
亮点模型
声散射特性
板块元方法
目标强度
空间相位
highlight model
acoustic scattering characteristics
planar elements method
target strength
spatial phase
