基于AD7655的鱼雷声靶数据采集系统设计分析

为了保证鱼雷声靶工作时的可靠性和稳定性,数据采集系统必须具有多通道和高采样频率的特点,以满足高精度的试验要求。本文在分析鱼雷声靶数据采集系统的总体构成的基础上,介绍了运用高性能模数转换芯片AD7655实现数据采集系统的模数转换过程,说明了利用FPGA产生控制信号实现AD7655模数转换功能,以及AD7655与数字处理器传送数据的接口设计。在实际应用过程中证明,该系统的设计是合理的。

Analysis for the Design of the Data Acquisition System of Torpedo Acoustics-Drone Based on AD7655

In order to ensure the reliability and stability of Torpedo Acoustics-Drone and fulfil the high precision of experimentation demand,the Data Acquisition System(DAS) must have the advantage of multicenter and high sampling frequency.Based on the analysis of the structure of the DAS,this paper explains how to make use of FPGA to produce controling signal to realize the digital-analog conversing function of AD7655 and the interface design for data transmision between AD7655 and data processor.In the applicatio...