Abstract
The signal acquisition system is an important part of the sonar system. This paper presents a stable multi-channel underwater acoustic signal acquisition system based on NI-CompactRIO, aiming at the compact feature of the small platform sonar system. It realizes the simultaneous acquisition of multi-channel analog signals and the function of storing mass original data. The acquisition system basically comprises of sampling using the self-made acquisition module and storing using U disk. The software is programmed by LabVIEW. Finally, the stability of the system is verified by the experiment on the lake.
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