双基地海底散射模型仿真研究  

Simulation of Bistatic Bottom Scattering Model

作　　者：齐崇阳[1,2] 孙治雷[1,2] 李婷[3] 卢中新 

机构地区：[1]国土资源部海洋油气资源和环境地质重点实验室,山东青岛266071 [2]青岛海洋地质研究所,山东青岛266071 [3]河北联合大学,河北唐山063009 [4]中船重工第七二六研究所,上海200120

出　　处：《计算机仿真》2012年第2期23-26,49,共5页Computer Simulation

基　　金：国家自然科学基金项目"黄海北部晚第四纪沉积格局及物源控制"(40976036);国土资源部海洋油气资源和环境地质重点实验室"黄河口湿地甲烷循环过程与海-气通量研究"(MRE201119)

摘　　要：研究声纳探测系统优化的问题。潜艇的隐身能力越来越强,要求声纳的探测技术不断提高。为提高声纳探测系统的性能,建立了双基地海底散射模型。模型既考虑了海水和海底之间的粗糙界面引起的界面散射,又考虑了海底不均匀沉积层引起的体积散射。确定了散射强度与双基地各角度之间的关系;讨论了海底的反向散射、平面内散射和三维散射模型,通过仿真,得出散射强度随散射角度变化的特点,为双基地海底混响的预报提供了科学依据。The optimization of sonar detection system was discussed in this paper. The deteetivity of sonar system should be improved continuously because the stealth capabilities of submarines are growing stronger and stronger. A bistatie bottom scattering model was established to improve the performance of sonar detection system. The scattering of the water - sediment interface and the scattering from volume inhomogeneity within the sediment were both considered. The relation between the bistatic scattering strength and the angles （the grazing angle, the scattering angle and the bistatic angle） was presented in the model. The backscattering, in - plane scattering and 3 - D scattering were all discussed. The feature of scattering strength with angle was obtained after the simulations, which provides a scien- tific basis for the forecast of the bistatic bottom reverberation

关 键 词：双基地 声学散射 海底沉积层的不均匀 仿真 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]