Analysis of Acoustic Properties of the Seafloor Sediments in the South China Sea

摘要：

As carriers of sea and its resources, seafloor sediments become the focus of geoacoustics and underwater acoustics. In this paper, the laboratory acoustic measurement method is introduced to obtain the acoustic properties of seafloor sediment. And the sound propagation mechanism is discussed, thus a wave propagation model of freedom factor and coupled-frame elastic modulus based Men-Chen model,FCMCM, is presented to improve the Men-Chen model. Based on FCMCM, the relationship between frequency and porosity with acoustic attributes is analyzed, and distribution of compressional wave speeds of shallow sediments in the South China Sea is interpreted to get the absolute values of relatively theoretical errors within 6 percent. All the above indicates the validity of acoustic method and the FCMCM in the analysis of acoustic properties of seafloor sediments.

关键词： Acoustic Sediment Sound speed Propagation

作者: ZOU Dapeng

作者单位: Guangdong University of Technology, Guangzhou 510090, China

会议类型: 国际会议

会议名称: 2010 International Conference on Measuring Technology and Mechatronics Automation(ICMTMA 2010)(2010年检测技术与机电自动化国际会议)

会议地点: 长沙

会议语种:英文

页码: 543-546

在线出版日期: 2010-03-13（万方平台首次上网日期，不代表论文的发表时间）