The Realization On The Technique Scheme Of Orthogonal Multiplexing In Nautical High-Speed Data Transmission

With the fast development of shipping industry and communication technology, the research on high-speed nautical data transmission system has become the popular topic. According to the fact of nautical data communication in our country, with a view to the application and development, under the background of the establishing of high-speed nautical data transmission system, this paper discusses the design and realization of the orthogonal multiplexing technique scheme. At first, this paper analyzes the character, design and realization of this system. And then analyzes the key technique about the mode of channel multiplexing, the mode of RF modulation and demodulation, and the mode of carrier probe, at last accomplishes the design and realization of terminal hardware. After one year's research and test, I finished some works as following:1. Design the scheme of the system about "the Nautical High-Speed Data Transmission". Expound the design of the project of orthogonal multiplexing, complete the research on the key technique, and raise the way of realization.2. Using the MC1596, a monolithic balanced modulator circuit, to design the transmitting and receiving terminal, and complete the realization of the terminal hardwire.3. Complete the transmitting and receiving test in the lab.This paper expounds the analysis and research on the scheme of orthogonal multiplexing in the process of realization the technique scheme of high-speed nautical data transmission system, which is suitable of the development of shipping industry and communication technology, has a high practicality. The terminal and the data processing terminal compose the system terminal, which is an economical and practical system, and this paper has meaning in theory and practice.