| In marine environmental monitoring,marine development,and marine research,the temperature and depth of seawater is an important parameter index.The temperature change of sea water not only has an important impact on underwater sound transmission,underwater life and climate change,but also has important significance for the safety of navigation,concealment and communication of submarines in the military.The temperature of sea water directly reflects the thermal state of the ocean,and the pressure state of the seawater is directly related to the density change of the seawater.Therefore,in the process of marine environment measurement,the two parameters of ocean temperature and depth can directly construct the ocean vertical temperature field.It also provides reference for the sound velocity profile of seawater.Marine environmental noise is a background sound field that is ubiquitous but not expected in the marine environment.Generally,sound waves caused by natural and thought activities such as ocean wind and waves,marine biological activities,maritime navigation,etc.Interact with the sea surface,seabed and water bodies during their propagation to form a complex background noise field,and these background noises are generally referred to as noise of the marine environment.On the one hand,marine environmental noise affects the design and use of sonar.On the other hand,marine environmental noise contains rich marine environmental information.This paper designs and implements a set of marine environmental parameters and underwater noise field measurement system.The system is armed by means of marine buoys,and multiple sets of buoys can work together,which can realize the measurement,collection and storage of marine environmental parameters and noise field parameters in large-scale sea areas.The thesis first introduces the main work of this article based on actual engineering needs,combined with theoretical research,domestic and foreign development technology and current status.Secondly,carry out circuit calculation,simulation and design according to the index requirements and theoretical knowledge put forward by the system.In the third chapter of the paper,the system design software design process is given,and a set of upper computer system with temperature and depth correction,configuration and display functions is designed according to the needs.At the end of the thesis,various parts of the system were tested according to the index requirements put forward in the early stage of the system,the system was assembled as a whole,and the pool test and sea trial test were carried out.The sea trial test data was analyzed and the system was verified.Reliability and stability. |
