提出一种长期卫星钟差预报新方法:以天为尺度,利用二阶多项式模型建模并进行长期卫星钟差预报,用拉格朗日插值多项式对预报值进行内插得出最终的预报结果。计算结果表明,该方法能够大幅度提高长期卫星钟差的预报精度。
A new way which can be used to forecast the clock error by the traditional quadratic polynomial model based on the scale of day, then the output values is interpolated by Lagrange interpolation polynomial to form the final forecasting results is proposed. The results show that the new method can significantly improve the accuracy of long-term satellite clock error prediction.