基于广义延拓法的目标航迹曲线拟合算法方法研究

A Research on Target Track Curve Fitting Algorithm Based on Generalized Extended Interpolation

笔者提出一种基于广义延拓法的目标航迹曲线拟合算法,用于解决传统工程应用中多项式插值法随多项式阶数升高导致目标数值稳定性差,以及整域拟合法过滤高阶变化量导致对目标反应延迟的问题。通过对目标真实飞行数据进行目标航迹曲线拟合发现,广义延拓法能够提升目标航迹曲线的拟合精度。

This paper propose a target track curve fitting algorithm based on generalized extended interpolation,to solve the problem of poor stability of target value caused by the increase of polynomial order of polynomial interpolation method in traditional engineering application,and the problem of response delay to target caused by high-order changes filtered by whole domain fitting method.The results show that the generalized continuation method can improve the fitting accuracy of the target track curve.