高速红外图像数据采集系统的设计

Design of High-speed Infrared Image Data Acquisition System

在红外空空导弹中,红外成像系统在图像处理中所涉及的数据量大,难以实现实时处理。针对这一问题,介绍了一种基于RapidIO和PCI Express的高速红外图像数据采集系统,重点讨论了以高速串行总线的XMC底板和XMC接口板为框架结构的关键模块图像采集板卡的设计。该系统不仅具有双通道数据采集功能,还具有双通道数据播发功能。每通道的采集速率达到1.2 Gbps,码速率为0-400 M。该系统可实现高帧频红外图像的实时采集和显示。

In an air-to-air missile,the amount of the data to be processed by the infrared imaging system is too large for real-time processing.To address this problem,a high-speed infrared image data acquisition system based on RapidIO and PCI-Express is presented.The design of a key modular image acquisition card which uses the XMC base plate and XMC interface board of a high-speed serial bus as its frame structure is discussed emphatically.The system not only has a dual channel data acquisition function,but also has a dual channel data broadcast function.Each channel has a data acquisition rate up to 1.2 Gbps and a code rate in the range 0 M to 400 M.The system can implement the real-time acquisition and display of high frame rate infrared images.