摘要
为了更好地解决目前飞行试验中飞机着陆时姿态角参数精确测量问题,基于灭点理论,根据飞机降落过程中机载摄像机所获取到的跑道面影像,提出利用跑道平行线解算飞机姿态角参数的新方法。论述了灭点与摄像机外方位角元素的函数关系,建立了基于灭点几何与直线几何约束条件进行姿态角参数解算的数学模型。试验结果表明,该方法切实可行,能够获得精确可靠的飞机着陆过程中姿态角数据。
In order to find a better solution for the current problem of accurate measurement of the attitude angles parameters in the flight landing test, a new method using parallel lines ac- quired from the images of the runway surface obtained by airborne camera during landing to calculate the aircraft attitude angles is proposed based on vanishing point theory. The function- al relationship between vanish point and orientation angle elements is discussed, and the mod- els of calculating the attitude angles parameters based on vanishing point geometry and line ge- ometric constrains are presented. Experimental results show that the proposed approach is fea- sible in practice, and can obtain accurate and reliable measurement of aircraft attitude angles in landing.
出处
《应用光学》
CAS
CSCD
北大核心
2012年第4期779-783,共5页
Journal of Applied Optics
关键词
灭点
飞机姿态角
平行线
直线几何约束
飞行试验
vanishing point
aircraft attitude
parallel lines
line geometric constrains
flight test
