在分析了我国可采用的静止轨道和中轨道跟踪与数据中继卫星系统的系统结构和特点的基础上,给出了2 个系统方案。通过仿真计算,对它们的覆盖性能和实现的复杂程度进行了比较。仿真结果表明,中轨道跟踪与数据中继卫星系统能够提供更好的覆盖性能,但实现难度大于静止轨道跟踪与数据中继卫星系统。因此,现阶段我国采用双星静止轨道跟踪与数据中继卫星系统是合理的选择。 Based on the analysis of the system structure and characteristics of the geostationary orbit tracking and data relay satellite system in our country, two system schemes are given. Through the simulation calculation, the coverage performance and the complexity of their implementation are compared. The simulation results show that the orbit tracking and data relay satellite system can provide better coverage performance, but the realization is more difficult than the orbit tracking and data relay satellite system. Therefore, at this stage, China’s use of binary satellite orbit tracking and data relay satellite system is a reasonable choice.