Design And Realization Of Military Digital Communication System Without Exchange Center On DSP

For its high flexible and extreme particularity, communication system without exchage center (CSEC) is a special communication system which is usually used in military communication and other special systems. It is valuble in this communication high developed world.Digital information processing is the key of the information society. And DSP(Digital Signal Processing) is one of the core technology of digital information processing.Now most tasks of the digital information processing are completed by the DSP(Digital Signal Processor).DSP has become the fast developing technoloty which is focused by persons more and more.DSP(Digital Signal Processing) is the meaning of a theory while DSP(Digital Signal Processor) means a chip which has the function of digital signal processing.The combination of them is the scheme which is faced to the real project. Nowaday ,DSP has becom the basic chip of communication,computer and electrical consumption .DSP has becom the most fast developing in electrical field. Some experts say that the renovation of DSP will decide the renovation of the electrical products.In this paper, we will discuss how to design and realize a military communication system without exchage center based on DSP tech. .First, we will discuss the requirement analyse of the project and expatiate the system frame under the requirement. Then we will expatiate how to realize these task based on TI TMS320 55 x DSP platform. At t he end of the last part of the paper, we will discuss how to realize a modem mode of this digital communication system.