A Software Design Of Underwater GIS Based On The MapX

The map of underwater electronic information is an applied technology based on underwater acoustic engineering, navigation technology, geographic information systems, computer and other subjects. The information that Underwater Acoustic research needs and the hull in the navigations can be visually displayed in the electronic chart by this technology oThe Electronic Chart in the design can receive and display the ocean environment parameters, sonar parameters, the prediction result of the sonar operating range and the GPS navigation parameters which can provide a visual platform for ships navigation and stratagem direct.Firstly, based on the sonar equations, the paper analyzed the sonar parameters, the target parameters and the channel parameters which affect the work of sonar systemically. Based on this, made a further theoretical study on the sonar operating range, and figured out the operating range formula of the passive sonar with the active sonar under noise masking. And then, made some theoretical analyze on the software of navigation technology and Geographic Information System, analyzed the design concept of The Electronic Chart software design and the function it will realized. Build the modularization program construction. The software design contains the navigation information management block, Electronic Chart block, sonar information block, database and the interface block. Finally, debugged the software to achieve the anticipated function.The design was based on the Visual C++ 6.0 developing platform, developed with the Microsoft Foundation Library (MFC) technology combined with the MapX components technology, managing the database on the open database connectivity (ODBC) technology, and finished the communication on serial interface.