探月卫星在备份航天器遥控上的设计与验证

The Analysis and Practice of Backup Spacecraft Tele Command Based on Lunar Exploration Spacecraft

摘要:

本文以探月卫星设计分析和飞行控制为例,探讨了备份航天器在不改动自身设备的条件下,如何与主份航天器同时安全完成飞行试验的问题。由于主份航天器与备份航天器整器设备均为同时设计、同时投产,技术状态相同。两器星上在测控数管软硬件均完全一致,且在相同时段、相近地点在轨飞行的情况下,通过使用不同的遥控码速率、使用不同的频点、利用环境遮挡、使用门限电平发指令的实施方法,避免了两器之间遥控的互相影响,保证了航天器安全。

Abstract:

The safe flight of both backup spacecraft and primary spacecraft without changing the facilities onboard is discussed based on the design and operation of Lunar Exploration Spacecraft. Since the backup spacecraft is the backup spacecraft of the main spacecraft, the two satellites are designed and produced at the same time with the same hardware and software, and they fly at the same time around the similar place. By using the different tele command data rate, the different frequency, the shelter from the moon as well as the limit of the uplink power, the interference between the two tele command link is avoided, and the safety of the two satellites are maintained.