中文摘要：

海底是水下声场的重要边界,其声散射特性对水下声场空间结构及分布规律具有至关重要的影响。对目前国际上海底声散射特性研究方面的进展进行了系统的分析和总结,从海底声散射测量技术、海底声散射特性及机理、海底声散射预测模型3个方面进行了论述,并提出了未来研究的方向、研究重点与难点。该工作对于充分了解和认识海底声散射研究的目前现状和未来发展趋势具有很好的借鉴和指导意义。

英文摘要：

Seafloor is an important boundary for underwater sound field,and its acoustic scattering property has significant influence to spatial structure and distribution of underwater sound field.In this paper,we systematically analyzed and summarized the present progress on the measuring techniques,mechanism and modeling of bottom acoustic scattering property in the world.In addition,some research directions and topics which should be paid more attention to in the future were put forwarded as well as some research difficulties.This work will have great contribution to further studying and understanding the present status and the future trend of the research on bottom acoustic scattering property.