Research on the Application Technology of Manned Submersible Bathymetric Sidescan Sonar System in the Abyss Zone

Abstract

The exploration of the Micro-topography and landforms in the abyss area is one of the main application directions of manned submersible. It is of great significance to use the Bathymetric Sidescan Sonar System of manned submersible to obtain high resolution topography and geomorphology map of abyss area. This paper introduces the composition and working principle of Bathymetric Sidescan Sonar System and key technology of Jiaolong manned submersible after the upgrade of Jiaolong manned submersible. Combined with the data obtained from sea trial and scientific application voyage of Jiaolong manned submersible, the advantages of underwater vehicle automatic navigation technology in the exploration of topography and geomorphology in the abyss area are analyzed, combined with the subjective initiative of human. The Bathymetric Sidescan Sonar System could still work in the best condition. This paper also discusses the interference of digital underwater acoustic communication system on the mapping of Bathymetric Sidescan Sonar System. Finally, the detection results of the line stations are given. It provides a reference for the application of Bathymetric Sidescan Sonar System for manned submersible in the exploration of micro topography and geomorphology in the abyss area.