西北太平洋水声环境区划及声传播特征  

Zoning and propagation loss characteristics of underwater acoustic environment in the Northwest Pacific Ocean

作　　者：王彦磊[1] 高建华[2] 李杰[1] 张芳苒[1] 郑红莲[1] 

机构地区：[1]中国人民解放军61741部队 [2]中国人民解放军72517部队

出　　处：《海洋通报》2013年第1期85-91,共7页Marine Science Bulletin

基　　金：国家自然科学基金(41276045)

摘　　要：基于2006年Argo资料,计算西北太平洋海域0-1 500 m声速剖面。针对声速结构分类中分类数目难以客观选取和分类结果易陷入局部最优等问题,采用聚类中心动态调整的遗传编码方案和操作算子,充分利用模糊聚类与遗传算法的优势,运用改进的遗传聚类算法对西北太平洋声速剖面进行分类区划。基于声场环境区划结果,运用Kraken简正波传播模型(Kraken Normal Wave Propagation Mode)l模拟典型声速结构的声传播损失场,借助表征声呐效能的优质因数(FOM),分析典型声速结构的传播损失特征及其对声呐探测、水下潜器等活动的影响。Based on the 2006 Argo data,the profile of sound speed from surface to 1 500 meter depth in the Northwest Pacific Ocean was calculated.Then,the profile of sound speed was sorted and districted with the improved genetic clustering algorithm.In order to solve two problems,that is,hard selecting the initial cluster number objectively and clustering results easy being trapped into the local optimal,this method adopted coding project and operation operator of dynamic adjustment of clustering center in the genetic algorithm,taking advantage of the fuzzy clustering and the genetic algorithm.Based on the results of the sound field zoning,sound propagation loss of typical acoustic structure was simulated using the Kraken Normal Wave Propagation Model.Furthermore,with the aid of the FOM indicating sonar performance,the typical sound propagation loss characteristics and its influences on the sonar detection and underwater vehicle activities were analyzed.

关 键 词：水声环境 西北太平洋 声传播损失 

分 类 号：TN929.3[电子电信—通信与信息系统]