Research & Implementation Data Acquisition And Hard Disk Storage System Based On DSP

Underwater acoustic data acquisition equipment is necessary for underwater acoustic experimentation. Since the situation underwater is very complicated, we adopt the data acquisition equipment which is adaptive to the abominable field. All of these make the data acquisition equipment to have a wide dynamic range and have the utility to acquire the signals which have large amplitude range. To reduce the necessary cost for the research on it, the system must be made to have unversial purposes and flexiable extending ability. All of these requests are the kernal of the paper. The design ideas of the hardware circuits and the program flow as well as the scheme to resolve the key technique problems, together with some debugging results of system, have been given in detail.In the hardware circuits,AD acquisition and the Principles of DSP ,USB2.0 and RAM has been introduced in the papers. In order to reduce Power Consumption, the paper give a watching system,to meet the demand of long time underwater.The system has been experimented both above water and under water,the result of experimentations has been meet the demand.