Design On Multi-Channel High-Speed Data Acquisition And Large Capacity Storage System

Moving Target Detection and Imaging (MTDI) is a hot topic in the area of Synthetic Aperture Radar (SAR) and it plays an important role in both martial field and civilian field. The analysis foundation of MTDI is radar echo signal, and that Multi-Channel Data Acquisition can abstract more information of moving target, accordingly determine the parameters of the position, the figure, and the moving state of the moving target more accurately. In order to obtain more exact information of the target, wider data bandwidth is needed, and wide bandwidth need high speed data acquisition system. The data generated by high speed multi-channel data acquisition need real-time high speed large capacity storage system to store. Therefore, it is very important to design a high speed, multi-channel acquisition, large capacity storage acquisition and storage system.This data acquisition and storage system uses six channels ADC and plenty of FLASH parallel working to implement multi-channel data acquiring and large capacity data storage. The paper first introduces the development background of acquiring technology and storage technology briefly, and then emphases(focus on) narrate the design requirement, theory foundation, hardware designing and logic designing of acquiring system and storage system respectively, at last, the paper do a summarize and expectation for the design.