Abstract
Aiming at the inherent limitation of high frequency acoustic signals acquisition real-time, a design of multi-channel acoustic signals acquisition and storage system is proposed in this paper, in which singlechip acts as control cell, tf memory card as the memory device and fpga as the high-speed interface of data buffering and format conversion. fat file system is built in tf memory card and acquisition data store as files. this design has advantages such as small size, easy installation, high-speed and real-time storage, good universality and low power consumption. it has been successfully applied in a radiated noise acquisition system of high-speed underwater vehicle and could be very useful for many other areas.
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