| Along with the fast development of wireless communication, the research of the nautical wireless data transmission system has also been the hot topic in the two years recently. This paper is build up in the back of constructing the entire nautical high speed data transmission system, channel coding and data modulating is mainly researched. At first ,the technology scheme is analyzed and then designed in the whole .then ,the key technology of the nautical communication and communication protocols and the design of data transmission terminal software and hardware is researched completely. After one year's research and test, the task of the paper was as follows:1, Expatiate the whole design of channel coding and modulating in high speed data transmission and complete the research of key technical and concrete realization.2, Design communication protocols of the entire wireless data transmission system and realize the communication between people and computer by Visual Basic 6.0.3,Design the wireless data transmission terminal base on 32bits ARM microprocessor S3C44B0X and Embedded Real-time Operating System UC/ OS-II, and complete the application of software and hardware in data transmission terminal.4, Complete the trials of data sending and receiving in the laboratory .The paper focuses on the analyzing and researching of theories and technologies on the channel coding and modulation, also on the Embedded Real-time Operating System UC/ OS-II port in 32bits ARM microprocessor S3C44B0X. This paper designing the Embedded wireless data transmission terminal provides an economical and practical technology scheme for communication of the middle and short distance nautical, have a significant meaning of theory and the practice ,especially the new ideals are introduced. |