AOS体制分析及在导航卫星上的应用

AOS Analysis and Its Application on Navigation Satellite

随着微处理器在航天器上的大量应用,各分系统或设备对数据的自主管理能力日益增强,并且航天器功能也越来越复杂。这些功能的增加,使遥测数据量越来越大,对数据处理的要求也越来越高,上、下行码速率也越来越高,这就要求遥测系统具有动态组织传送这些数据的能力,以更好适应不同任务的需求,实现高柔性和低成本。高级在轨数据系统AOS(Advanced Orbiting System)兼容了分包设计规范,满足传输路径的可靠性和实时性的要求。文章从导航卫星的角度,提出对AOS体制的分析及具体的设计和应用方法。

With the microprocessor widely used in spacecraft, each subsystem or equipment＇ s capability of indenpen- dently managing the data is increasingly enhanced and the function of spacecraft is getting complex. The enhancement of the function has brought about an increasing amount of telemetry data. Meanwhile, it has created higher requirement of signal processing as well as the higher code rate. As a result, the telemetry system is required to have the ability to dynamically ar- range and transmit the data in order to adapt itself to various tasks and realize high flexibility and low cost. AOS （ Advanced Orbiting System） compatible with design specification for packet telemetry, it can meet the need of the reliability and real time. In this paper, we proposed AOS analysis and its specific method of design and application in term of navigation satel-lite.