由脉冲波形与传播损失反演海底声速与衰减系数  

Bottom sound speed and attenuation inverted by using pulsed waveform and transmission loss

作　　者：李风华[1] 张仁和[1] 

机构地区：[1]中国科学院声学研究所声场声信息国家重点实验室,北京100080

出　　处：《声学学报》2000年第4期297-302,共6页Acta Acustica

基　　金：国家自然科学基金!19734050;美国ONR资助

摘　　要：根据黄海中部一次浅海声学实验获得的脉冲波形和传播损失数据进行海底声速和衰减系数的反演。本文在反演过程中：（1）考虑了海水深度的测量误差对反演结果的影响，并提出了一种消除该影响的方法。（2）反演得到的该海区海底衰减与频率呈非线性关系。（3）本文讨论了非均匀海底模型对海底反演结果的影响。The bottom sound speed and attenuation were inverted by using the pulsed waveform and transmission loss.In the process of the inversion, (1) the effect of the depth of waer on the inversion results were discussed and a methodfor determining the depth of water was given out, (2) the inverted attenuation has nonlinear frequency relationship, (3)the effect of inhomogeneous bottom on the inverted results was discussed.

关 键 词：脉冲波形 传播损失 海底声速 衰减系数 浅海声学 

分 类 号：P733.21[天文地球—物理海洋学]