影响GEO卫星长寿命高可靠的空间环境因素及其评估、验证和保障技术研究

Space Environmental Factors Influencing on GEO Satellite’s Life and Reliability and Their Evaluation, Verification and Guarantee Technologies

文章叙述了空间环境与卫星长寿命高可靠的关系,着重分析了影响GEO卫星长寿命高可靠的各种空间环境效应,如:地磁亚暴电子造成的卫星表面带电及诱导的二次放电、辐射带高能电子引起卫星内带电、太阳耀斑质子和银河宇宙射线造成的单粒子效应、空间带电粒子和太阳电磁辐照造成的辐照总剂量效应以及空间环境下敏感表面的污染效应等。文章最后给出GEO卫星空间环境效应的评估、验证和保障技术研究的必要性及其主要研究方向。

The relation between the space environment and the life and reliability of satellites is discussed by analyzing various influencing factors. Space substorm environment is related to satellite surface charging and discharging; high energy electrons in belt cause satellite internal charging; solar and particle event and galactic cosmic ray induce single event effects; space charged particles and solar electromagnetic radiation produce a total dose effect; and space vacuum environment influences the satellite self-contamination. The evaluation, verification and guarantee technologies of these space environmental effects are also discussed.