CAJ | 학술논문

针对某型阻力伞性能鉴定试飞科目要求，需要精确测量阻力伞在稳定工作时的垂直、水平摆角，从而为该产品的技术鉴定提供依据。本文根据加装在飞机机背中段的高速摄像机，获取阻力伞的运动影像，通过图像分析处理识别特征点的亚象素坐标，采用摄影测量的解算算法，推导出数学解算模型，实现了阻力伞运动参数的最优解算。结合真实飞行试验对测量结果进行了分析，数据结论准确。
침대모형조력산성능감정시비과목요구，수요정학측량조력산재은정공작시적수직、수평파각，종이위해산품적기술감정제공의거。본문근거가장재비궤궤배중단적고속섭상궤，획취조력산적운동영상，통과도상분석처리식별특정점적아상소좌표，채용섭영측량적해산산법，추도출수학해산모형，실현료조력산운동삼수적최우해산。결합진실비행시험대측량결과진행료분석，수거결론준학。
According to the special requirement of performance evaluating for a certain decelerated umbrella,it is necessary to determine its horizontal and vertical tilt angles when it is in the stable station. These parameters are the essential judgment. A high-speed digital camera is mount on the ventral centerline of the aircraft to obtain the Image sequences of the decelerated umbrella when it moves. Throughout high-accuracy image processing, the characteristic marks painted on the decelerated umbrella are high-accurately tracked and identified based on sub-pixel. A mathematical model is derived and a monocular measurement is implemented to get the optimal solution. The analysis is made by the measurement results in flight tests, which showed the correctness of the measurement results.