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PCIe总线不仅硬件接口简单,软件和PCI总线完全兼容,而且传输速度数十倍于PCI总线。针对载机任务系统实时视频采集记录的需求,设计了一种基于PCIe总线的航空视频采集记录系统,利用现场可编程逻辑器件(FPGA)实现了视频数据流的编解码和PCIe桥接口的设计,简化了硬件接口设计,提高了系统的工作效率。系统在某型数字化对抗训练系统中的实际应用表明该设计实用可行。
PCIe bus not only hardware interface is simple, software and PCI bus is fully compatible, and the transmission speed of several times the PCI bus. According to the requirements of real-time video acquisition and recording of carrier mission system, a PCIe bus-based aviation video acquisition and recording system is designed. The encoding and decoding of video data stream and the design of PCIe bridge interface are realized by field programmable logic device (FPGA) Simplify the hardware interface design, improve system efficiency. The practical application of the system in a certain type of digital confrontation training system shows that the design is practical and feasible.