摘要
为减少空中目标测量数据中的时间偏差和野值对弹道处理精度的影响,提出利用三点拉格朗日插值方法对测量数据进行时间不一致修正,采用外推预报对野值进行识别,为保证测量数据序列的完整性和连续性,利用最小二乘拟合方法对剔除野值后的数据序列进行修补。三种方法结合使用,可有效提高弹道处理的精度。
In order to reduce the influence of time deviation and outliers on the trajectory processing, the time deviation in the measurement data is corrected by the method of Lagrange interpolation, the outliers is recognized by the method of extrapolation forecast, the data sequence is repaired by the method of least squares for ensure the integrity and the continuity of the data sequence. The accuracy of trajectory processing can be effectively improved by the three methods.
关键词
弹道
偏差修正
数据修补
Trajectory
Deviation Correct
Data Repair
