基于未知参数约束方程的多观测站交会模型

An Intersection Survey Model with Restrained Unknown Parameter Equation Attached for Multi-Optical Systems

航空飞行试验中,经常采用多个光电跟踪测量系统对飞机及武器发射、航空装备性能鉴定等进行轨迹测量,文章利用共线条件建立多个光电跟踪测量系统测量模型,提出了一种新的基于未知参数约束方程的算法;该算法是在建立多台光电经纬仪的共线条件方程的基础上,加入测量距离的约束条件共同形成一组观测方程,经线性化后,在最小二乘准则下求解其最佳估计;该算法经过飞行试验证明能够有效地提高观测数据处理精度。

Multi--optical--electronic tracking systems are frequently used to track flying trajectory of airplane and weapons and airborne instruments in flight test. The paper describes a processing algorithm with a set of restrained unknown parameter equations attached based on the collinearity Equation of the central projection for every tracking system. The equations will be linearised and the optimal space rectangular coordinates of flying target resolved using the Least--Squared Estimated approach. The processing algorithm is proved an effective algorithm to get optimal accuracy in practice.