基于修正亮点模型的水下体目标建模技术  

Underwater Target Modeling Technology Based on Modified Highlight Model

作　　者：刘文远 赵金海 宋永锋[2] 张杰[3] 

机构地区：[1]广州局750军代室 [2]中国人民解放军91792部队 [3]中国人民解放军92858部队

出　　处：《鱼雷技术》2010年第5期352-356,共5页Torpedo Technology

摘　　要：主动声纳照射水下复杂目标时,目标各部分将互相落到彼此沿声线照射方向上的投影区内,出现相互遮挡现象,导致预报模型失真。针对这一问题,基于光学照射投影原理,引入了遮挡系数的概念。通过对各部件间遮挡系数的推导,提出了一种简单易行的遮挡问题解决方法,对原有潜艇亮点模型进行了修正。仿真结果表明,修正亮点模型能够更加真实的反映潜艇回波情况,试验数据也验证了模型的有效性。When a complicated underwater target is irradiated by active sonar,different parts of the target will fall into one another′s shadows along the incidence direction,resulting in cross-coverage and model echo distortion.Aiming at this prob-lem,shading coefficient is introduced based on light projecting principle.A simple solution is presented by deducing the shading coefficient of each component,and the existing highlight model is modified.Simulation results show that the modi-fied highlight model can mirror the submarine echo more accurately,and the experimental data also verify the validity of the model.

关 键 词：水下目标 亮点模型 遮挡系数 声纳目标 

分 类 号：TJ630.34[兵器科学与技术—武器系统与运用工程] TN912.16[电子电信—通信与信息系统]