Most of space satellites have large structures, solar array paddles and antennas, are folded during transport into space by launch vehicles, and deployed after arriving in space which could cause platform vibration. Satellite vibration monitoring is a problem of great complexity. Wireless sensor network can be used to sample and gather the vibration data of the satellite. For wireless vibration measurements, time synchronization is important because the vibration data are simultaneously measured at multipoint sensor nodes and are transmitted via multi-hop relayed to base station. However most of the current algorithms mainly focus on the precision of synchronization. In fact, in the context of space, stability and robustness of WSN is the key matter of concern. In this paper, a novel multi-hop time synchronization scheme is proposed with the purpose of improving its robustness and stability. The experiments results illustrate our scheme can achieve good precision in the presence of problematic nodes.
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