基于FPGA的多通道同步数据采集系统

Design of Multi-channel Data Acquisition System Based on FPGA

多通道同步数据采集是星载傅里叶光谱仪研制的关键技术之一。介绍了一种基于FPGA的64路通道数据同步采集系统,实现了高速高精度红外干涉信号采集。本系统用FPGA实现了干涉信号采样时序控制、打包排序和USB接口的传输控制等功能,具有实时性好、抗干扰性强的优点,并且具有一定的通用性。

The multi-channels synchronous data acquisition is the key technology of Space-borne Spectrometer. 64 channels synchronous data acquisition system based on FPGA is introduceed. The system realizes high speed and precision infrared signal acquisition. The functions are realized based on FPGA, such as sample scheduling of interference signal, data packing ＆ ranking , and controlling USB interface. The system has great real- time capability, high anti- interference performance, and general utility.