论文部分内容阅读
基于计算机平台的红外场景仿真系统存在输入输出接口受限,实时响应能力不足,可扩展性差的缺点。为此,文中构建了一套基于嵌入式硬件的实时闭环红外场景仿真系统演示平台。引入并行计算与多级流水线技术,采用多片嵌入式处理器级联的方式,解决了单片嵌入式处理器计算能力的不足,实现了实时计算;单任务运行环境使得系统实时响应性能良好,便于实现闭环仿真;自主设计的针对红外应用的三维红外实时渲染引擎提高了仿真精度。详细介绍了系统方案的实现与优化过程,并给出了实验结果。运行时间控制在25 ms/frame之内,成像帧频为40 frame/s,结果证明系统达到了设计要求。
Infrared scene simulation system based on computer platform has the disadvantages of limited input and output interface, insufficient real-time response capability and poor scalability. To this end, the article built a set of embedded real-time closed-loop infrared scene simulation system based on embedded hardware demonstration platform. The parallel computation and multistage pipeline technology are introduced. The multi-chip embedded processor cascade is adopted to solve the shortage of single-chip embedded processor’s computing power and realize the real-time calculation. The single-task operating environment makes the system real- It is easy to realize closed-loop simulation. The self-designed three-dimensional infrared real-time rendering engine for infrared applications improves the simulation accuracy. The implementation and optimization of the system scheme are introduced in detail, and the experimental results are given. The operating time is controlled within 25 ms / frame and the imaging frame rate is 40 frame / s. The result proves that the system meets the design requirements.