基于天通卫星系统的天基测控技术

Space-based TT&C technology based on Tiantong satellite

摘要:

针对卫星测控资源紧缺的现状，为满足未来大规模卫星用户对测控资源的使用便利性这一需求，研究利用天通卫星进行近地低轨卫星测控服务的能力。天通作为高轨移动通信卫星系统，具有传输实时方便、服务安全可靠和综合效费比高等多方面的特点。首先，分析了天通卫星对不同倾角、轨道高度卫星的测控覆盖时长，以及对载人航天任务空间站和火箭进行测控的服务能力。然后，基于天通民用系统现有的系统架构，详细介绍了天通系统支持低轨测控的系统改造方案以及工作流程。最后，结合目前的技术发展趋势和天通卫星能力现状，描述了天通卫星在天基测控和低速中继两种任务场景中的应用前景。

Abstract:

In order to make the TT&C service more effective and convenient, and solve the problem of satellite TT&C resources shortage. The ability of using Tiantong satellites to support LEO TT&C is researched in this paper. As a GEO mobile communication satellite system, there are many advantages on Tiantong TT&C，such as the real-time transmission, reliable service, and low costing. We analyzed the service capabilities of Tiantong satellites for different LEO orbits. Besides LEO satellites, the space station and rocket are also considered in this paper. In order to support the space-based TT&C, the modification solution and detailed work flow are introduced based on the existing structure of Tiantong satellite mobile communication system. Finally, combined with the current technology development trend and Tiantong satellite capabilities, the application scene of space-based TT&C and low rate data relay is described.