摘要
DMD红外动态场景模拟器是红外半实物仿真系统的重要组成部分,其时间性能参数决定了模拟器能否将仿真图像正确投射到被测系统。介绍了DMD红外动态场景模拟器工作原理,深入分析了DMD驱动方式和工作时序。讨论了半实物仿真实验对DMD红外动态场景模拟器调制时间、同步和帧频等时间性能参数的需求。提出了DMD红外动态场景模拟器调制时间、同步和帧频测试方法,搭建了测试平台。对现有DMD红外动态场景模拟器调制时间、同步和帧频进行了测试,分析了测试中发现的模拟器相关问题,并提出了改进建议。为模拟器的研制、应用及性能评价提供一定的依据。
The DMD dynamic infrared scene projector is an integral component of the hardware-in-loop IR simulation system. The time performance parameters of the projector directly affect the accuracy of images projected to the unit under test. The working principle, driving mode and working sequence of the DMD projector were introduced. The demands for time performance parameters such as modulation time, synchronization and frame frequency in the hardware-in-loop IR simulation were discussed. The testing methods of time performance parameters were put forward, and the experimental platform were set up. The time performance parameters of our projector were tested, some problems of the projector were analyzed, and some suggestions for improvement were put forward. These results would provide some reference for DMD projector design, application and performance evaluation.
出处
《红外与激光工程》
EI
CSCD
北大核心
2014年第2期417-423,共7页
Infrared and Laser Engineering
基金
总装预研基金(51303040203)
关键词
红外动态场景模拟器
调制时间
帧频
同步
DMD
DMD
IR scene projector
modulation time
frame frequency
synchronization
