海底声学特性

海底声学特性水平变化引起的异常声传播

Anomalous sound propagation due to the horizontal variation of seabed acoustic properties

关于海底声学特性研究已成为我国国防部门的重要课题。

The studying about acoustic characters of sediment has been a important problem to the department of defense .

运用设计的声学特性测量系统，以40KHz的平面发射换能器和两个声波探针为传感器，进行了海底沉积物声学特性小距离测量实验。

Based on the acoustic properties measurement system , the seabed sediment acoustic properties on small-gap measurement experiment was carried out using the two probes to be sensors .

海底沉积物声学特性的研究在经济建设与国防等领域均具有重要的意义。

Seafloor sediment acoustic properties research has important significance in economic construction and national defense .

海底沉积物声学特性主要包含两个参数：声速和声衰减。

Seafloor sediments acoustic characteristic mainly contains two parameters : the sound velocity and acoustic attenuation .

海底沉积物声学特性方面的研究主要是在沉积物的声速与声衰减两个方面。

The research on acoustic properties of sediments focuses on both the acoustic velocity and sound attenuation .

海底沉积层声学特性测量方法研究

The Method for Measuring the Acoustics Characteristic of the Ocean Sediment

概述了海底沉积物的主要声学特性以及沉积物样品的制作。

The main acoustic properties of seabed sediment and the preparation of sediment samples were introduced as well .

海底浅部沉积物声学特性直接影响海洋声学环境，影响对海底面、海底浅表层沉积物及其下伏地质体和人工构筑物的声波探测效果。

Acoustic characteristics of seabed sediments are basic to underwater acoustic environment and to explorations of sea bottom , surficial and sub-bottom sediments and underlying geologic bodies and man-made obstructions .

而海底沉积物的类型与海底介质的声学特性直接相关，利用声学方法进行海底沉积物类型判别工作能有效地提高工作效率。

The type of seabed sediment has relationship with its acoustic parameters ; The acoustic method to classify seabed sediment can improve the efficiency of the task .