基于J_2摄动模型的卫星轨道预测算法精度评估

Accuracy Assessment of Satellite Orbit Prediction Based on J_2 Perturbation Model

介绍了基于J2摄动模型的经典轨道六根数预测卫星轨道的算法,并验证算法实现的正确性;以典型的卫星轨道为例,利用STK软件以两行根数(TLE)对卫星轨道的预测结果作为精度评价的参考,分析评价基于J2摄动模型的轨道六根数预测卫星运行轨道的精度。并根据评估结果研究不同卫星轨道所受到的摄动的影响因素,分析基于J2摄动模型的轨道六根数预测卫星轨道算法的适用性。

In order to insure the security of space mission,the satellite orbit must be tracked and predicted by using a certain model.The algorithm of classical orbital elements based on J2 perturbation model was introduced and proved in this paper.Taking the typical satellite orbits as an example,the prediction precision of orbital elements was further analyzed using the prediction result of Two-Line Orbital Element（TLE）.According to the analyzed results,the perturbation factors of different satellite orbits were studied,and the applicability and limitations of the classical orbital elements algorithm based on J2 perturbation model were also analyzed.