摘要
介绍了新研制的数字注入式红外成像仿真系统中采用的一些实时仿真技术,主要包括:通过多线程技术实现监听、仿真计算、结果输出等多任务的实时调度;通过光纤反射内存网实现实时通讯;通过乒乓缓存、DirectDraw实现红外图像的实时平滑显示;通过主控猝发DMA传输提高仿真结果输出速度。测试结果显示,上述方法能有效提高仿真实时性。
Some technologies used for enhancing the real-time simulation ability of the newly-developed infrared image simulation system based on digital signal injection are described. These technologies mainly include： firstly, multi-threads technology which is used for efficiently scheduling among multi-tasks such as commands monitoring, simulation and calculation, results exportation, etc; secondly, real time communication through the reflective memory network connected by fiber; thirdly, displaying IR images smoothly and timely through the use of double caches and DirectDraw; fourthly, improving the results exportation speed by master-control burst DMA transfer. Experiment results show that the technologies above can enhance the speed of real-time simulation efficiently.
出处
《半导体光电》
EI
CAS
CSCD
北大核心
2008年第2期272-275,共4页
Semiconductor Optoelectronics
关键词
红外实时仿真
多线程
反射内存
乒乓缓存
DMA
IR real-time simulation
multi-threads
reflective memory
double-caches
DMA
