利用差值定理降低飞行器速度和加速度拟合的截断误差

推导了差值定理及其推论，并以此作为数据拟合的有效点判据，显著降低了飞行器速度和加速度拟合的截断误差；探讨了该判据条件下滤波参数对拟合结果的影响及截断误差的判断条件，并采用实测数据对拟合效果进行了检验。

Using Error Theorem to Reduce the Truncation Error Produced in Calculating the Velocity and Acceleration of Spacecraft

The Error Theorem and its inference are deduced. Used as judgments for valid points in data approximation, the deductions can significantly lower truncation errors for approximation of spacecraft speed and acceleration. Impact of filtering parameters on approximation results and truncation error judgment conditions under conditions of the judgment conditions are explored. Finally, actual instrumentation data is used for verification of approximation results.