Abstract:

The national defense space architecture （NDSA） is the future space capability architecture of the United States， which aims to unify and integrate the next generation of the US space defense capabilities and seek space superiority. To clarify the key driving factors of NDSA， deepen the understanding and cognition of its essential core， and grasp the direction of future development trends， this paper sorts out the structure of the NDSA and analyzes the development plan and current situation. It focuses on the recent satellite deployment and technical research on the key transmission layer， tracking layer， supervision layer， and operational management layer. The development motivation is discussed from three dimensions of national competition， flexible development， and operational innovation. Finally， the paper gives relevant inspiration to the NDSA and related fields in China.

Key words: national defense space architecture, development motivation, major power competition strategy, flexible development ideas, new combat concepts, space development agency

摘要：

美国国防太空体系架构是美国未来的空间能力架构，旨在统一和整合美国下一代太空国防能力，谋求太空优势。为了厘清美国国防太空体系架构产生的关键驱动要素，加深对其本质内核的理解与认知，把握未来的发展趋势方向，梳理了该体系架构的组成结构，分析了发展规划与现状，聚焦近期重点建设的传输层、跟踪层、监管层和作战管理层的卫星部署和技术攻关情况，重点从国家竞争、弹性发展及作战创新3个维度讨论了发展动因，针对国防太空体系架构及我国相关领域的发展建设给出了相关启示。

关键词: 国防太空体系架构, 发展动因, 大国竞争战略, 弹性发展思路, 新型作战概念, 美国太空发展局