基于USB的超光谱成像仪数据采集系统的设计  

Design of Data Acquisition System for Hyperspectral Imager Based on USB

作　　者：何海波[1] 谢惜惜[1] 王跃明[1] 刘银年[1] 

机构地区：[1]中国科学院上海技术物理研究所,上海200083

出　　处：《红外》2008年第5期18-23,45,共7页Infrared

摘　　要：设计了一套基于USB 2.0高速串行总线的数据采集系统,实现了某超光谱成像仪研制过程中的光谱图像数据采集、传输、显示与存储。系统的软硬件设计综合应用了USB、LVDS、时钟数据恢复、8B/10B编码、乒乓缓存、多线程和DirectDraw等技术.相对于传统的基于ISA/PCI总线的成像光谱仪数据采集系统,该设计支持热插拔和总线供电,具有低功耗、小型化和轻量化等特点,对类似数据采集系统的设计具有参考和借鉴意义。A data acquisition system based on a USB2.0 high speed serial bus is designed and hence the acquisition, transfer, strorage and display of the spectral image data is implemented for a hyperspectral imager. The design of the software and hardware of the system is technically involved in USB, LVDS, CDR, 8B/10B Codec, Ping-pong Buffer, Multi-thread and DirectDraw etc.. Compared with the traditional ISA/PCI-based data acquisition system for a spectral imager, this design can support hot-plug and bus powering and has the features of lower power consumtion, smaller size, lighter weight and so on. It can be a good reference for similar systems.

关 键 词：超光谱成像仪 数据采集 CY7C68013A 时钟数据恢复(CDR) DIRECTDRAW 

分 类 号：TP274.2[自动化与计算机技术—检测技术与自动化装置]