高帧频DMD红外景象仿真设备电路与光学系统设计

发布时间：2018-04-16 23:27

  本文选题：红外仿真 + 红外景象生成　； 参考：《红外与激光工程》2017年04期

【摘要】：针对红外半实物仿真试验中DMD红外景象仿真设备存在的时序同步、高帧频显示、光学匹配等使用问题,设计与研制了一套能够与常见被测红外凝视成像设备匹配使用的基于DMD的红外景象仿真设备。首先提出了合理可行的同步延时驱动方案和显示控制方案,设计与研制了同步信号处理电路和驱动电路,实现了仿真图像的时序同步和高帧频显示;其次根据常见被测红外凝视成像设备的光学参数,进行了光学系统设计与仿真,研制了照明光学系统和投影光学系统,实现了与常见被测红外凝视成像设备光学匹配。检测结果表明:该设备能够与多种被测红外凝视成像设备在时序上保持同步,并实现光学匹配,输出的仿真图像帧频可达300 Hz、最大可模拟温度为160℃、最小可模拟温差为0.03℃、最大图像对比度为0.7、空间非均匀性优于1%,已在红外半实物仿真试验中发挥了巨大作用。
[Abstract]:Aiming at the problems of timing synchronization, high frame rate display and optical matching of DMD infrared scene simulation equipment in infrared hardware-in-the-loop simulation test,An infrared scene simulation equipment based on DMD is designed and developed, which can match the common infrared staring imaging equipment.Firstly, a reasonable and feasible synchronous delay drive scheme and display control scheme are proposed. The synchronous signal processing circuit and driving circuit are designed and developed. The timing synchronization and high frame rate display of the simulation image are realized.Secondly, according to the optical parameters of the common infrared staring imaging equipment, the optical system design and simulation are carried out, and the illuminating optical system and the projection optical system are developed, and the optical matching with the common infrared staring imaging equipment is realized.The test results show that the device can synchronize with various infrared staring imaging devices and achieve optical matching. The output simulation image frame frequency can reach 300 Hz, the maximum simulated temperature is 160 鈩，

本文编号：1761062