基于影像分析的飞机偏离跑道距离测量技术研究  

Investigation on measurement technology of departure distance from aircraft to runway based on images analysis

作　　者：冯巧宁[1] 吴立巍[1] 

机构地区：[1]中国飞行试验研究院,陕西西安710089

出　　处：《现代电子技术》2015年第10期87-90,共4页Modern Electronics Technique

摘　　要：根据某型飞机最小操纵速度科目专项试飞要求,为有效评估飞机偏离跑道中心线的距离,构建了一套稳定可靠的光电测试系统,通过在飞机中段机腹中心线上加装高速数字摄像机,获取飞机运动时跑道及机轮的序列影像,经过高精度的摄像机标校,通过图像分析处理识别飞机前起落架机轮和跑道中心线上特征点的亚像素坐标,根据摄影测量原理精确解算飞机偏离跑道中心线的距离。结合真实飞行试验对测量结果进行了分析,数据结论准确。According to the special requirement of minimum control speed flight test for civil planes,a stable photoelectric measuring system is designed in this paper to evaluate the departure distance from aircraft to runway centerline. A high-speed digital camera is mounted on the ventral centerline to obtain sequence images of runway and plane wheel of the running plane. With high-accuracy calibration of high-speed digital cameras and image processing,sub-pixels coordinates of the feature points on the wheel of front undercarriage and runway centerline are identified. The departure distance from aircraft to the runway cen-terline is calculated accurately according to the photogrammetry. The measurement result is analyzed in combination with the da-ta from actual flight tests,which shows the correctness of the measurement results.

关 键 词：高速数字摄像机 序列影像 偏离距离 飞行试验 

分 类 号：TN965-34[电子电信—信号与信息处理]