摘要
为获取声传播环境数据,实验中开展了水文调查和浅地层剖面仪的观测。由于声传播实验发射信号频率与接收船上的浅地层剖面仪信号频率接近,因此声传播实验信号在浅地层剖面仪测量图中产生了斜条纹。利用实验中水听器测量的信号模拟浅地层剖面仪的测量,解释了浅地层剖面仪测量图像中斜条纹的形成,并通过控制声传播实验信号的发射周期和时间模拟条纹的几种形式。
An acoustic propagation experiment was carried out in the Yellow Sea in January 2010. During the experiment, the hydrological observation and subbottom profiler survey were also conducted in order to obtain the environmental data for the acoustic propagation. The acoustic propagation signals gave rise to slant stripes in the subbottom profiler images due to the close frequencies of the acoustic propagation and the subbottom profiler. The formation of the slant stripes can be explained by simulating the subbottom profiler measurement with the signals received by hydrophone. The stripes resulting from the acoustic propagation signals are simulated by changing the period and time of the acoustic transmission.
出处
《海洋科学进展》
CAS
CSCD
北大核心
2011年第3期411-418,共8页
Advances in Marine Science
基金
国家自然科学基金项目--南黄海热通量的观测分析和SST变化
季节变化的机理研究(40806015)
国家科技支撑计划项目(2008BAC50B02)
关键词
浅地层剖面仪
测量模拟
声传播
subbottom profiler
simulation of measurement
acoustic propagation
