海底特性多波束一体化探测新方法及其实验装置研制

The information of seabed terrain, relief and sub-bottom profile is essential support to the foreland research in basic marine science such as seabed resources surveying, seafloor classification and the formulation cause and evolution process of seafloor sediments. In domestic and abroad presently, the measure of the information mostly relies on variety of single-function underwater acoustic detection instruments. Due to the time-varying and spatial-varying complexity of the marine environment, the fusion of the obtained data is very difficult. The results are difficult and sometimes even unavailable to use which severely restrict the foreland research of submarine science. Based on long-term and underlying research of the related theory and technology, this project proposes a novel multibeam seabed terrain, relief and sub-bottom profile features integration detection method. The innovative development of the experimental apparatus is carried out which laid the foundation for the early realization of the seabed feature meantime, one-point, integration detection equipment that urgently needed by the basic research of marine science. The study includes: (1) acoustic array technology based on underwater integration detection method; (2) multibeam seabed terrain and relief precisely detection technology; (3) sub-bottom profiling technology based on vector sensor; (4) experimental device development of seabed integrated detection method; (5) pool, lake and sea trial validation studies.

在海底资源勘测调查、底质分类以及海底沉积层成因与演化进程等海洋基础科学的前沿研究中，离不开海底地形、地貌以及浅地层剖面等重要特性信息的支撑。目前国内外大多依靠多种单一功能的水声探测仪器异步测量这些信息，而海洋环境的时变、空变复杂性使得这些仪器多次异步测量获得的海底特性数据融合起来相当困难甚至无法使用，严重制约了海底科学前沿研究。本申请课题通过长期深入地开展相关基础理论与技术研究，提出一种新颖的多波束海底地形、地貌及浅地层剖面特性一体化探测新方法，进而开展该方法实验装置的创新性研制，为早日实现海洋基础科学研究急需的海底特性信息同时、共点、一体化探测设备奠定基础。研究内容包括：(1)基于海底一体化探测方法的组合声学基阵技术研究；(2)多波束海底地形、地貌信息精细探测技术研究；(3)基于矢量传感器的海底浅地层分层技术研究；(4)海底一体化探测方法实验装置研制；(5)水池、湖上及海上试验验证研究。

在海底资源勘测调查、底质分类以及海底沉积层成因与演化进程等海洋基础科学的前沿研究中，离不开海底地形、地貌以及浅地层剖面等重要特性信息的支撑。针对于海洋环境的时变、空变复杂性特征，本课题通过深入地开展相关基础理论与技术研究，提出多波束海底地形、地貌及浅地层剖面特性一体化探测新方法，并研制了海底一体化探测实验装置，通过试验验证了海洋基础科学研究急需的海底特性信息的同时、共点、一体化探测技术的可行性，解决了目前国内外大多依靠多种单一功能的水声探测仪器异步测量获得的海底声学特性数据融合起来相当困难甚至无法使用的技术难题。项目研究内容主要包括：(1)基于海底一体化探测方法的组合声学基阵研制；(2)多波束海底地形、地貌信息精细探测技术实现；(3)基于矢量传感器的海底浅地层分层技术研究并实现；(4)海底一体化探测方法实验装置研制；(5)水池、湖上及海上试验验证研究。