摘要
海面与海底构成了声源浅海海域波导场的声传播环境。本文采用解析算法将球面波分解为平面波,推导给出介质层中的声场空间分布特征,给出了低频声波声源定深而接收点在一定深度附近变化的声场变化计算结果,并初步分析了浅海海域中由于海面起伏使接收水听器深度变化对声场强度的影响,对实艇声学测试具有较强的针对性和一定的工程实用性。
Sea surface and bottom constituted sound propagation environment of the neritic acoustic duct field.This thesis used the analytical calculation to resolve spherical wave into plane wave,deduced the characteristic sound field space distribution in dielectric layer,gave the calculated result of sound field change when the received point depth changes nearby a certain deepness and low frequency source settled,and analyzed elementarily the influence that the variation of received hydrophone deepness because of sea fluctuation to the sound field strength.It has stronger aim at solid boat acoustics test and practicality of engineering.
出处
《舰船科学技术》
2009年第10期39-42,55,共5页
Ship Science and Technology
关键词
浅海海域
声传播环境
理论计算
neritic waters
sound propagation environment
theory calculation
