Key Technologies And System Implementation Of High-speed Underwater Acoustic Communication System

With the rapid development of ocean and information technology, the requirement of transmitting the data through the underwater channel is increasing greatly, and it becomes a very important project for us to make high data-rate and high reliable information transmission in the ocean today.The characteristics of underwater acoustic channel are analyzed firstly in the paper. Aiming at the different applied aspects, three different schemes of high data-rate underwater acoustic communication system are brought forward. Then one of the key technologies to realize the scheme, that is adaptive equalization technique, is studied theoretically. The design realization of the hardware platform of the key algorithm is discussed thoroughly finally.In this paper, the computer simulation based on the channel model was carried on and the comparative result of the adaptive equalization algorithm was brought out.The realization of the systematic software and hardware are introduced in the paper. The whole structure of hardware and the designs based on DSP and CPLD are specially discussed in detail. The software designs are given with the flow chart. Finally, the debug procedure of the system is introduced in the paper, and the debug result is given.