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国家自然科学基金(10734100): 作品数：19被引量：93H指数：6; 导出分析报告; 相关作者：李整林张仁和李风华孙梅彭朝晖更多>>; 相关机构：中国科学院中国科学院研究生院中国人民解放军海军装备研究院更多>>; 相关期刊：《声学技术》《Chinese Journal of Acoustics》《Science Bulletin》《Science China(Physics,Mechanics & Astronomy)》更多>>; 相关主题：海底THE_SOUTH_CHINA_SEA匹配场简正波矢量水听器更多>>; 相关领域：天文地球理学一般工业技术自动化与计算机技术更多>>

Benchmark solutions for sound propagation in an ideal wedge: 《Chinese Physics B》2013年第5期346-354,共9页骆文于杨春梅秦继兴张仁和; Project supported by the National Natural Science Foundation of China (Grant Nos. 11125420 and 10734100);the Knowledge Innovation Program of the Chinese Academy of Sciences; Sound propagation in a wedge-shaped waveguide with perfectly reflecting boundaries is one of the few range- dependent problems with an analytical solution, and hence provides an ideal benchmark for a full two-way solu...; 关键词：coupled-mode theory wedge-shaped waveguide perfectly reflecting boundary benchmark solu-tion

SPECIAL TOPICS:An efficient method for solving sound propagation in range-dependent ocean waveguides was found by researchers from Chinese Academy of Sciences: 《Chinese Science Bulletin》2012年第25期3391-3391,共1页; supported by the National Natural Science Foundation of China (10734100 and 11125420);the Knowledge Innovation Program of Chinese Academy of Sciences; The coupled normal mode method is a powerful approach for solving range-dependent propagation problems in underwater acoustics. An important area of study is to improve stability and efficiency; 关键词：中国科学院声学研究所科学研究院声波传播研究人员波导国家重点实验室中国科学院院士海洋

Pekeris声波导情况下海深不确定性对简正波群速度反演海底声速的影响研究被引量：1: 《声学学报》2011年第6期579-587,共9页孙梅李风华张仁和; 国家自然科学基金重点项目(10734100); 简正波群速度广泛应用于海底参数反演,海深不确定性对反演结果有较大影响。为了减小海深测量误差对反演结果的影响,本文通过理论分析和仿真计算对Pekeris声波导情况下正则简正波群速度随海深和海底声速的变化规律进行研究,结果表明当所...; 关键词：群速度反演不确定性简正波声波导海底海深声速波群速度

斜坡海底条件下声场垂直相关特性研究被引量：10: 《声学学报》2011年第6期596-604,共9页王鲁军彭朝晖李整林; 国家自然科学基金资助项目(10734100); 利用数值仿真和实验研究分析和总结了不同斜坡海底条件下声场垂直相关性随垂直间隔和传播距离的变化规律,并利用楔形简正波理论对海底倾斜引起的声场垂直相关变化机理进行了解释。研究结果表明,上坡和下坡地形的声场垂直相关性具有很大...; 关键词：垂直间隔声场海底相关特性斜坡垂直相关简正波理论变化规律

斜坡海底对声场水平纵向相关性的影响被引量：4: 《声学技术》2011年第4期311-315,共5页王鲁军彭朝晖袁延艺李整林; 国家自然科学基金资助项目(10734100); 利用数值仿真分析和总结了不同斜坡海底条件下声场水平相关性随水平间隔和传播距离的变化规律,并利用楔形简正波理论对海底倾斜引起的声场水平纵向相关变化机理进行了解释。研究结果表明,上坡和下坡地形的声场水平纵向相关性具有很大的...; 关键词：斜坡声场水平纵向相关性

浅海声场垂直振速与水平振速相关特性及应用被引量：6: 《声学学报》2011年第2期215-220,共6页孙梅李风华张仁和; 国家自然科学基金重点项目(10734100); 基于矢量水听器记录的质点振速信号,研究了浅海声场垂直振速与水平振速的相关特性,理论与仿真结果表明记录的垂直振速与水平振速的相关系数是矢量水听器俯仰角度的函数,矢量水听器不发生俯仰时二者的相关系数约为零。基于上述特点,提出...; 关键词：矢量水听器质点振速相关特性浅海声场垂直自适应校正应用相关系数

Geoacoustic inversion for sediments in the South China Sea based on a hybrid inversion scheme被引量：27: 《Chinese Journal of Oceanology and Limnology》2010年第5期990-995,共6页李整林李风华; Supported by the Knowledge Innovation Program of the Chinese Academy of Sciences (No.KZCX1-YW-12-02);the National Natural Science Foundation of China (Nos.10974218 and 10734100); We performed a long range acoustic propagation experiment in the South China Sea(SCS) in November 2004.The environment of the experiment was with an isothermal sound speed profile,where influence of water volume fluct...; 关键词：geoacoustic inversion matched field processing transmission loss

Matched-field inversion of sound speed profile in shallow water using a parallel genetic algorithm被引量：9: 《Chinese Journal of Oceanology and Limnology》2010年第5期1080-1085,共6页余炎欣李整林何利; Supported by the Knowledge Innovation Program of the Chinese Academy of Sciences (No.KZCX1-YW-12-02);the National Natural Science Foundation of China (Nos.10974218,10734100); A sound speed profile plays an important role in shallow water sound propagation.Concurrent with in-situ measurements,many inversion methods,such as matched-field inversion,have been put forward to invert the sound sp...; 关键词：matched-field processing sound speed profile parallel genetic algorithm

Effects of internal waves on signal temporal correlation length in the South China Sea: 《Chinese Journal of Oceanology and Limnology》2010年第5期1119-1126,共8页任云李整林; Supported by the Knowledge Innovation Program of Chinese Academy of Sciences (No.KZCX1-YW-12-02);the National Natural Science Foundation of China (Nos.10974218,10734100); We simulated the temporal correlation of sound transmission using a two-dimensional advective frozen-ocean model with temperature data from a temperature sensor array on a propagation path in the South China Sea （SCS...; 关键词：internal waves solitary internal waves temporal correlation length source-receiver range sound speed fluctuation

Interference structure of shallow water reverberation in time-frequency distribution被引量：3: 《Science China(Physics,Mechanics & Astronomy)》2010年第8期1408-1411,共4页LI FengHua ZHANG YanJun ZHANG RenHe LIU JianJun; supported by the National Natural Science Foundation of China (Grant No. 10734100); The striations of the reverberation spectrum in the time-frequency distribution were observed in a shallow water acoustic experiment in 2002. A model following the coherent reverberation model developed in 2002 is pre...; 关键词：REVERBERATION INTERFERENCE TIME-FREQUENCY waveguide invariant

国家自然科学基金(10734100)