摘要
吊放声纳的作用距离不仅和自身设备性能有关,还和海洋水声环境特性及吊放声纳入水深度有着密切的关系.本文阐述了浅海不同声速剖面中的声传播特性,通过仿真声线轨迹分析了几种典型的浅海声速剖面对声传播的影响.通过对声纳、水声环境以及目标的模型化计算,利用射线模型仿真了几种不同声速剖面情况下吊放声纳的主动作用距离.分析了吊放声纳入水深度对浅海目标主动作用距离的影响.仿真分析结果表明,不同的声速剖面下,声纳的入水深度不同,它们的探测距离也不同,找到最佳的探测距离对应的入水深度,能够充分发挥声纳自身的性能,得到对各深度目标的最好探测.
The detection range of dipping sonar is related to not only the equipment performance, but also the environment characteristics and the depth of dipping sonar in the water. In this study, acoustic propagation characteristic of different sound speed profiles in the shallow sea was first set forth, and several kinds of typical sound speed profiles were analyzed by simulating ray trace. Then by modeling and calculating the sonar, underwater acoustic environment and target, the active detection range of dipping sonar of different sound speed profiles is simulated by ray model. At last, the effect of the depth in the water of active dipping sonar on the detection range was analyzed. The result shows that the detection range is different if the depth in the water of active dipping sonar is different in the different sound speed profiles, and the performance of sonar can be well exerted and the targets of different depth can be best detected when finding the optimum detection depth of different sound speed profiles.
出处
《测试技术学报》
2011年第6期471-476,共6页
Journal of Test and Measurement Technology
基金
国家自然科学基金资助项目(60572161)
关键词
吊放声纳
声速剖面
仿真
声线轨迹
探测距离
dipping sonar
sound speed profiles
simulation
ray trace
detection range
