Modeling of the Dynamic Satellite Link Network Applying Digital Circuit Theory
Due to the satellites orbital movement and the Earths rotation, the communications satellite network has a time-varying topology and its links have limited lifetimes. This dynamic network is conventionally simplified as a series of discrete finite states in the relative researches. In this paper, a dynamic modeling method is proposed for the continuous state evolution of the network which regards the link as a logic switch while the whole network as a sequential logic circuit. The boundary point set corresponds to the logic input function which decides the state transition, and the dynamic state evolution of the link is then presented as an equivalent logic oscillogram. In this way, the connectivity examination and the coverage performance calculation can be executed easily with AND or OR logic operation on the boundary point sets. This dynamic model retains all the state information in a simple form and paves a higher-quality and easy way for the further researches on communications satellite link network.
digital circuit dynamic modeling link satellite network state transition
Xiaoyan Chen Chao Han
School of Astronautics Beihang University Beijing,China
国际会议
昆明
英文
520-524
2010-10-17（万方平台首次上网日期，不代表论文的发表时间）