声呐作用距离与水文条件密切相关,同样一部声呐在不同的海洋环境中其探测性能往往相差十分悬殊.除了声呐设备本身性能外,水声环境对声呐探测性能也有相当大的影响.针对潜艇经常活动的浅海区域,介绍浅海水声传播机理,建立不同水文条件下声传播的射线声学模型.对3种典型水文条件下的声传播规律仿真,提出了声呐如何根据不同水文条件进行合理使用的策略,为提高声呐探测性能的稳定性提供参考.%Sonar detection performance was closely related to the underwater acoustic conditions,detection performance was often different by the one sonar under the different environment.In addition to the performance of sonar equipment,also had a considerable impact on the underwater acoustic environment on sonar detection performance.Based on shallow water where submarine moved regularly,shallow underwater acoustic propagation mechanism was introduced.Ray acoustic models of sound propagation under different acoustic conditions were established.According to various velocity of sound section,several simulation experiments of acoustic propagation were researched.The simulation result provides the method for the rational use of sonar in different acoustic conditions,which also improves robustness of sonar detection performance.
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