Author:
Jiang Yifei,Chao Zhong,He Wanxie,Bei Wan,Wu Shufan,Mo Qiankun
Abstract
Abstract
As the novel research of space technologies, non-terrestrial-network (NTN) is one of the most important technologies. Mega satellite constellation is the baseline of the NTN technologies. Unfortunately, as the density of satellite deployment, the risk of collisions between satellites also increases significantly. Therefore, sensing technology is an important solution to avoid collisions within constellation. In this article, a sensing system for satellite constellation is proposed. It contains multiple subsystems working together to ensure measurement accuracy. An accurate laser measurement based on frequency swept interferometer (FIS) is the core of the sensing technologies. With a sensing distance of a few hundred meters, the specific FSI system can realize microns meterss accuracy in many experiments. Those results guarantee the well performance of the sensing system.
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