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卫星星上轨道的计算方法通常有解析方法和数值积分方法等.采用数值积分方法计算量较大,对于大偏心率的探测器任务轨道,解析方法也不适用.通过引入精密轨道与二体轨道的位置差,利用位置差拟合切比雪夫多项式系数,大大提高拟合精度.该方法计算精度高、计算速度快,可以很好地解决大偏心率椭圆轨道的星上轨道计算问题.
The satellite orbital satellite orbit calculation methods usually have analytic methods and numerical integration methods, etc. The method of numerical integration is computationally intensive, and it is not applicable to the orbit of large eccentricity detectors or analytic methods. By introducing precise orbital and two-body orbital The position is poor, the position difference is fitted to the Chebyshev polynomial coefficient, which greatly improves the fitting accuracy. The method has the advantages of high calculation precision and fast calculation speed, and can well solve the problem of on-orbit calculation of a large eccentricity elliptical orbit.