基于DMD的静态场景仿真成像特性分析
发布时间:2019-05-31 21:04
【摘要】:由于数字微镜器件特殊的成像特点,使得场景仿真系统在工作过程中需要解决帧频匹配问题,否则会出现图像混淆现象。分析了DMD芯片实现脉宽调制的特点以及帧频匹配对仿真场景成像系统的影响。通过在仿真系统不同显示时间和探测器不同积分时间情况下进行实验,得出了仿真系统进行静态场景仿真时帧频匹配需要满足的条件,即当满足探测器积分时间达到仿真系统显示时间的整数倍时,就可以避免图像混淆现象发生,而不需要外接同步触发信号。这种方法可以降低工程实现难度,对红外场景仿真系统的推广应用具有重要意义。
[Abstract]:Because of the special imaging characteristics of digital micromirror devices, the scene simulation system needs to solve the frame rate matching problem in the working process, otherwise there will be image confusion. The characteristics of pulse width modulation (PWM) realized by DMD chip and the influence of frame rate matching on the simulation scene imaging system are analyzed. Through the experiments under the condition of different display time and detector integral time of the simulation system, the conditions of frame rate matching in static scene simulation of the simulation system are obtained. That is, when the integral time of the detector reaches the integer times of the display time of the simulation system, the image confusion can be avoided without the need for external synchronous trigger signal. This method can reduce the difficulty of engineering implementation and is of great significance to the popularization and application of infrared scene simulation system.
【作者单位】: 军械工程学院电子与光学工程系;
【分类号】:TH74
本文编号:2490014
[Abstract]:Because of the special imaging characteristics of digital micromirror devices, the scene simulation system needs to solve the frame rate matching problem in the working process, otherwise there will be image confusion. The characteristics of pulse width modulation (PWM) realized by DMD chip and the influence of frame rate matching on the simulation scene imaging system are analyzed. Through the experiments under the condition of different display time and detector integral time of the simulation system, the conditions of frame rate matching in static scene simulation of the simulation system are obtained. That is, when the integral time of the detector reaches the integer times of the display time of the simulation system, the image confusion can be avoided without the need for external synchronous trigger signal. This method can reduce the difficulty of engineering implementation and is of great significance to the popularization and application of infrared scene simulation system.
【作者单位】: 军械工程学院电子与光学工程系;
【分类号】:TH74
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