High-precision ground trajectory repetitive orbit optimization method and system

The invention provides a high-precision ground trajectory repetitive orbit optimization method and system. The method comprises steps of building a corresponding satellite orbit dynamics recursion model according to the analysis of a non-spherical perturbation order demand of an earth gravity field; giving a heavy rail interference orbit parameter under a J2 low-order gravity field according to ananalytic formula, and performing iterative calculation to obtain a correction parameter under J4 perturbation as an initial value of a high-precision ground trajectory repetitive orbit parameter adaptive setting algorithm; and according to the repeated track precision requirement, self-adaptive optimization setting of high-precision ground track repeated track parameters being carried out. The method solves problems that a traditional low-order gravity field orbit model is low in ground trajectory repetition precision, a high-order gravity field orbit model is high in nonlinearity, many in iterative correction parame