基于最小二乘交汇的弹道融合解算方法

Data Fusion to Ballistic Trajectory Estimation Based on The Least Square Estimate for Multi-photo-electric Cinetheodolite Intersection

通过扩展最小二乘交汇结果弹道参数所在的线性空间,使得弹道结果所在的空间能够表示测量误差信息,然后利用初始弹道进行仿真诊断测量误差信息。这样同时利用了测量冗余信息和弹道参数先验信息来优化弹道解算结果,使得弹道结果更加精确、完整。仿真算例表明:这种方法能给出测量元的误差诊断,提高弹道解算结果的准确性和完整性。

Though expanding the representation linear space of trajectory parameters calculated by the least square estimate for multi-photo-electric cinetheodolite intersection, so that the measuring error information can be expressed in this space, and then the errors of the measurements were diagnosed by simulation by using the initial trajectory. This method adopts both multi-measure ment redundant and prior information of trajectory parameters to optimize the trajectory calculation, makes the trajectory caleulation more accurate and complete. The artificial calculation indicates that this method can give out the diagnoses of the measure er rors, and improve the accuracy and completeness of the trajectory.