摘要
提出了基于最优插值和经验正交函数的水声环境快速重构方法,利用海表遥感数据、实测片段数据以及历史数据,实现了海洋环境剖面的实时重构。针对不同海区的水声传播特点,建立了基于波束位移射线简正波、广义相积分简正波和抛物方程理论的水声环境传播仿真模型。根据声速剖面特征和水声传播计算结果,建立了环境特征参数评估模型,有效提取了实际应用需要的环境特征量。在此基础上,构建了水声环境快速评估仿真系统,与现有海洋环境同化预报模式的延时预报相比,该方法在区域战场环境的实时分析评估以及硬件配置要求方面具有明显优势。实验结果验证了系统的有效性。
Based on the optimal interpolation and empirical orthogonal functions（EOFs）,the method of rapid environment assessment（REA） was proposed.The vertical environmental profiles were rebuilt by the remote sensing SST data,parts measuring data and history measuring data.Considering the sound propagating feature,the sound simulating models were established based on the BDRM.WKBZ and PE models.Considering the characteristics of sound velocity profile and the sound propagation,the characteristic parameters abstracting models were established.The simulating system was established,which has a better performance than assimilation system for the environment assessment of operational zone.Simulation results show that the system is practicable.
出处
《系统仿真学报》
CAS
CSCD
北大核心
2012年第6期1156-1160,共5页
Journal of System Simulation
基金
教育部"新世纪优秀人才支持计划NCET"
国防预研基金项目(51303020401-01)
关键词
水声环境
快速重构
环境评估
特征提取
underwater acoustic environment
rapid rebuilding
environment assessment
characteristic parameters
