摘要
针对"下反"稳像式炮长瞄准镜只能稳定昼视光路,而不能稳定微光夜视视场的问题,设计了独立的电子稳像系统。采用AVR单片机设计了信号采集模块,利用外部中断实时获得炮长瞄准镜中陀螺仪输出信号,并用动态循环法控制数码管准确显示。设计DSP电子稳像模块通过串口中断与AVR单片机通信,将陀螺仪信号换算成图像的运动矢量,然后采用平移变换模型对图像的抖动进行补偿。为了检验稳像系统的性能,进行了微光瞄准镜稳像实验,结果表明:电子稳像系统能够较好地稳定微光夜视图像,提高了炮长夜间观察瞄准目标的能力。
The bottom-reflecting image-stabilized gun commander＇ s aiming telescope can only stabilize the daylight optical path, but it can＇ t stabilize the field of low-light-level night vision, thus an independent electronic image stabilization system is designed to solve this problem. The signal acquisition module is designed by using AVR chip microcomputer, the gyro output signals of gun commander＇ s aiming telescope are obtained real-time by using external interrupt, and the nixie tube is controlled by dynamic circulating method for accurate display. The electronic image stabilization module based on DSP is designed to communicate with AVR chip microcomputer by series port interrupt, and the gyro signals are converted to motion vectors of image, then the image flutter is compensated by using translation transformation model. In order to test performance of stabilization system, image stabilization experiment of low-light-level aiming telescope is carried out, the result shows that the electronic image stabilization system can well stabilize low-light-level night vision image, in result, it can improve the gun commander＇ s ability of observing and aiming at night.
出处
《装甲兵工程学院学报》
2012年第4期41-45,共5页
Journal of Academy of Armored Force Engineering
基金
军队科研计划项目
关键词
微光瞄准镜
陀螺仪
电子稳像
平移变换
low-light-level aiming telescope
gyro
electronic image stabilization
translation transformation
