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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。
DMD infrared dynamic scene simulator is an important part of the infrared semi-physical simulation system. Its time performance parameters determine whether the simulator can correctly project the simulated image to the system under test. The working principle of DMD infrared dynamic scene simulator is introduced, and the DMD driving mode and working sequence are deeply analyzed. The requirements of semi-physical simulation experiments on the time performance parameters such as modulation time, synchronization and frame rate of DMD infrared dynamic scene simulator are discussed. Proposed the DMD infrared dynamic scene simulator modulation time, synchronization and frame rate test method, set up a test platform. The modulation time, synchronization and frame rate of the existing DMD infrared dynamic scene simulator were tested. The problems related to the simulator found in the test were analyzed and some suggestions for improvement were proposed. Provide a basis for the development, application and performance evaluation of the simulator.