Research On Real-time Acquisition And Processing Technology Of Acoustic Information Based On Underwater Glider

With the improvement of China's comprehensive national strength,it pays more and more attention to maritime rights and interests,and its maritime strategic position becomes more and more important.As a new type of underwater vehicle,underwater glider has been paid more and more attention in the protection of Marine rights and interests and the construction of intelligent ocean.In order to achieve a high quality ocean observation mission with strong comprehensiveness,large observation scale,large observation depth and real-time acquisition of acoustic information,a real-time acoustic information acquisition and processing system based on underwater gliders should be developed.According to the current situation of technology development at home and abroad,as well as the urgent demand for the development of ocean acoustic information observation technology in China,this paper intends to carry out the research on real-time acoustic information acquisition and processing technology based on the underwater glider platform.In this paper,the core research content includes: according to the requirements of the underwater glider load capacity is small,low power consumption and small size and other characteristics,to research on acoustic information real-time information acquisition and processing technology,developed the work with the underwater glider platform integrated command and control software integration system and the shore,realize the ocean acoustic data real-time acquisition and storage.And the observation of acoustic data for in-depth research,the obtained data to carry out spectrum analysis,change over time characteristics analysis and other research work.The software of shore intelligent control center is also designed and developed.Based on QT platform,the software can receive signal processing results returned by underwater gliders through satellite information link,and convert the received data into NC format files,and display various profile data images at the same time.It can monitor the working state of the underwater glider and the anomalies.Send commands to control the working mode and sampling strategy of the acoustic system,and complete the unified control of each module of the acoustic system of the underwater glider.Finally,after functional and performance testing in a laboratory environment,the entire system was tested at sea.A large number of Marine environmental acoustic data were obtained to verify the feasibility and reliability of the system studied in this paper.To meet the requirements of the subject design,the acoustic information real-time acquisition and processing function based on the underwater glider is realized.