装甲兵工程学院学报
裝甲兵工程學院學報
장갑병공정학원학보
JOURNAL OF ARMORED FORCE ENGINEERING INSTITUTE
2012年
4期
41-45
,共5页
谢志宏%宗艳桃%王超%汪熙%刘佳
謝誌宏%宗豔桃%王超%汪熙%劉佳
사지굉%종염도%왕초%왕희%류가
微光瞄准镜%陀螺仪%电子稳像%平移变换
微光瞄準鏡%陀螺儀%電子穩像%平移變換
미광묘준경%타라의%전자은상%평이변환
low-light-level aiming telescope%gyro%electronic image stabilization%translation transformation
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。
針對“下反”穩像式砲長瞄準鏡隻能穩定晝視光路,而不能穩定微光夜視視場的問題,設計瞭獨立的電子穩像繫統。採用AVR單片機設計瞭信號採集模塊,利用外部中斷實時穫得砲長瞄準鏡中陀螺儀輸齣信號,併用動態循環法控製數碼管準確顯示。設計DSP電子穩像模塊通過串口中斷與AVR單片機通信,將陀螺儀信號換算成圖像的運動矢量,然後採用平移變換模型對圖像的抖動進行補償。為瞭檢驗穩像繫統的性能,進行瞭微光瞄準鏡穩像實驗,結果錶明:電子穩像繫統能夠較好地穩定微光夜視圖像,提高瞭砲長夜間觀察瞄準目標的能力。
침대“하반”은상식포장묘준경지능은정주시광로,이불능은정미광야시시장적문제,설계료독립적전자은상계통。채용AVR단편궤설계료신호채집모괴,이용외부중단실시획득포장묘준경중타라의수출신호,병용동태순배법공제수마관준학현시。설계DSP전자은상모괴통과천구중단여AVR단편궤통신,장타라의신호환산성도상적운동시량,연후채용평이변환모형대도상적두동진행보상。위료검험은상계통적성능,진행료미광묘준경은상실험,결과표명:전자은상계통능구교호지은정미광야시도상,제고료포장야간관찰묘준목표적능력。
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.