一种基于DMD的双波段高动态光学仿真技术

A Dual Band High Dynamic Optical Simulation Technology Based on DMD

针对多波段高速成像载荷半物理仿真的需求,提出了一种双波段复合高动态场景仿真方法,重点解决双波段共轴成像系统在实验室环境下高速仿真的难题,详细论述了系统方案和高帧频驱动实现方法,搭建了光学仿真系统并进行了测试,实现了可见光和短波红外共轴光学复合仿真,视场20°,复合精度3个像元,8位图像仿真频率为400帧。仿真系统可用于验证光学载荷对目标探测与跟踪的性能,解决外场试验成本高昂的问题,提高光学载荷的技术成熟度。

For the requirement of semi-physical and high speed imaging payload simulation,a dual band high dynamic scene simulation method is proposed in the paper.The problem of high-speed simulation of dual band coaxial imaging system in laboratory environment is solved.The system plan and implementation method of high frame rate drive are discussed in details.The optical simulation system is built and tested.The coaxial optical compound simulation of visible and SWIR is realized.The FOV is 20 degrees,the composite accuracy is 3pixels.and the 8bit image frequency is 400 frames.The simulation system can be used to verify the performance of optical payload for target detection and tracking.The high cost of external field test is solved.The technical maturity of optical payload is improved.