CAJ | 학술논문

针对高度动态变化的卫星网络，提出一种基于动态拓扑图的可视化方法。动态拓扑图可视化的难点在于如何保持动态可视化过程中的稳定性，从而使用户容易地感知到网络中所发生的拓扑变化。根据卫星网络的动态变化特点，构建连续的动态拓扑图模型；设计一种保持布局稳定性的策略，并基于力引导思想提出一种动态拓扑图布局算法；以Iridium系统为典型实例，验证本文的可视化方法的合理性和可行性。实验表明，该方法能够以清晰的可视化图像支持用户对卫星网络动态拓扑的感知和理解。
침대고도동태변화적위성망락，제출일충기우동태탁복도적가시화방법。동태탁복도가시화적난점재우여하보지동태가시화과정중적은정성，종이사용호용역지감지도망락중소발생적탁복변화。근거위성망락적동태변화특점，구건련속적동태탁복도모형；설계일충보지포국은정성적책략，병기우력인도사상제출일충동태탁복도포국산법；이Iridium계통위전형실례，험증본문적가시화방법적합이성화가행성。실험표명，해방법능구이청석적가시화도상지지용호대위성망락동태탁복적감지화리해。
A visualization method based on dynamic topological graph specific to satellite networks changing over time is proposed.The challenge of dynamical topological graph visualization lies in how to preserve the dynamic stability during visualization process and facilitate the perception of dynamic change of networks for users.Firstly,a continuous dynamical topological graph model was built,based on the analysis of dynamic characteristic of satellite networks.Then,a strategy for preserving dynamic stability of layout was designed and a dynamical topological graph layout algorithm was proposed,based on force-directed.Finally,the Iridium system was taken as a representative instance and the rationality and feasibility of our approach was validated.The experiment illustrated that the visualization results of our approach effectively supports the perception and understanding of dynamic topological of satellite networks.