多通道数据记录装置设计及实现

Design and implementation of multi-channel data recording apparatus

介绍了一种基于FPGA的多路采集存储电路设计。该装置以FPGA为主控芯片,控制模拟开关对导弹引信在高速动态交会试验中发射飞行过程中引信的多普勒信号、点火信号以及引信保障执行机构等的工作状况进行弹载实时采集,并通过THS1040模数转换器,将模拟信号转换成数字信号存入FLASH存储器。发射完成后,上位机通过USB接口将数据上传至计算机进行分解、绘图。经多次验证,证明该装置可以准确地对信号进行采集、存储,达到了设计目标。

The design of an FPGA-based multi-channel acquisition circuit was introduced. The device master chip FPGA control analog switches in high-speed dynamic intersection test launch missile fuze flight fuse Doppler signal, ignition signals and fuse protection executing agency of the state of real-time acquisition of missile-borne and THSI040 ADC converts the analog signal into a digital signal stored in the FLASH memory. The launch is complete, the host computer via the USB interface to upload data to the computer to decompose, drawing. It has been proved that the device can collect and store signal accurately and achieve the design by the repeated experiments.