摘要
基于HMG法并将实测数据与模型仿真相结合,以评估海洋"水声环境效应"对声呐探测距离的影响。文章首先基于声呐方程阐述HMG法预报原理,给出其声呐参数组合表达式;然后结合东海浅水区域水声调查构建海洋环境背景场,分析其水体及边界声学参数分布;最后,利用实测数据验证Kraken水声传播数值模型及风生噪声经验模型,并根据HMG法模拟预报海面风速、声速剖面对被动声呐探测距离的影响。研究结果表明:HMG法可较好模拟"水声环境效应"对声呐探测距离的影响;传播损失和环境噪声随海面风速增加而增大,从而降低了声呐探测距离;声速剖面通过影响声能边界损失作用于探测距离,垂向均匀的声速剖面环境中探测距离最大。文中研究可为被动声呐水下探测及水下航行器的隐蔽航行研究提供参考。
A research is conducted by combining experiment data and simulation model based on the hydrology meteorology geology（HMG） method to evaluate the influence of the underwater acoustic environment effect on sonar detection range. Firstly, the HMG prediction theory is discussed based on the sonar equation, and a sonar parameters combination expression is proposed. Then, the ocean environment background field is constructed combining with shallow-water acoustic survey in the East China Sea, and its acoustic parameters distribution of the water and boundary are analyzed. Finally, the Kraken＇s numerical acoustic transmission model and the empirical model of wind-generated noise are verified with measured data, and the passive sonar detection range is simulated for different wind speeds and sound speed profiles with the HMG method. The results show that： 1） the HMG method can simulate the effect of the underwater acoustic environment effect on sonar detection range; 2） the transmission loss and ambient noise increase with wind speed at sea surface, which decreases the sonar detection range; and 3） the sound speed profile influences detection range by affecting acoustic boundary loss, and the detection range gets the biggest in vertically uniform sound speed environment. This research may provide a reference for the underwater passive sonar detection and the stealth of an underwater vehicle.
出处
《鱼雷技术》
2016年第3期177-183,共7页
Torpedo Technology
基金
国家自然科学基金项目(41276088)
国家海洋公益性行业科研项目(2012050007-7)
关键词
水下航行器
HMG法
被动声呐探测
水声环境效应
水声调查
声速剖面
underwater vehicle
hydrology meteorology geology（HMG） method
passive sonar detection
underwater acoustic environment effect
underwater acoustic survey
sound speed profile
