LEO、MEO卫星网络星间链路图两种新表示方法的提出与实现

Proposition and Implementation on the Two New Representation Methods for LEO,MEO Satellite Network Intersatellite Link Map

国内外现有的LEO、MEO卫星网络星间链路图都以纯图形的表示方法给出,在卫星网络系统路由选择、系统性能分析及管理的研究中发现,图形化的表示方法难以满足分析问题的需要,尤其是当卫星数量增加和多高度卫星星座联合组网时,图形杂乱难以辨认.针对上述问题提出用抽象的图表示卫星星间链路的思想;提出了星间链路图抽象表示的原则;提出了卫星星间链路图两种新的表示方法,其一是基于极点扩张的星间链路图表示方法,其二是基于卫星轨道特征的星间链路图表示方法,并用C++设计了实现这两种表示方法的软件.软件运行结果表明,卫星星间链路图两种新的表示方法切实可行、具有应用价值.

The existing LEO,MEO intersatellite links map at home and abroad is given by the representation method of pure graph. We found from the routing of satellite network system,performance analysis of system and management research that the representation method having graphic feature is difficult to satisfy the requirement of analyzing problems ,especially graphics are difficult to distinguish due to their disorder when the quantity of satellites increase and satellite constellation with multiple height combine-building network. In view of the above problem,an idea of representing intersatellite links by applying abstract map was proposed,and the principle of abstractedly representing intersatellite links map was put forward in this paper. Two new representation methods for satellite intersatellite links map were proposed, one of which was the representation method of intersatellite links map on the basis of polar expansion and another one was based on the features of satellite orbit, and a software for implementing these two representation methods was designed by using C ＋ ＋. Operational results of the software showed that two kinds of new representation methods for satellite intersatellite links map were practical and had applicable value.