A5086591027- Underwater Vehicles and Communication Systems
- Underwater Acoustics Research
- Maritime Navigation and Safety
- Indoor and Outdoor Localization Technologies
Institute of Acoustics
2018-2021
Chinese Academy of Sciences
2018-2021
The Shipborne acoustic communication system of the submersible Shenhai Yongshi works in vertical, horizontal and slant channels according to relative positions. For ease use, an array combined by a vertical-cone directional transducer horizontal-toroid one is installed on mothership. Improved techniques are proposed combat adverse channel conditions, such as frequency selectivity, non-stationary ship noise, Doppler effects platform's nonlinear movement. coherent modulation, turbo-coded...
Due to the strong absorption and attenuation of electromagnetic waves by water, radio communications global positioning systems are lacking in deep-sea environment. Therefore, underwater long-distance communications, positioning, detection other functions depend on acoustic technology. In order realize above functions, system Fendouzhe human occupied vehicle (HOV) is composed eight kinds sonars sensors, which one core manned submersible. Based Jiaolong/Shenhai Yongshi HOVs, HOV has been...