基于星间链路的导航卫星网络自适应路由策略与机制研究方法

由于北斗全球导航卫星系统(Beidou global navigation satellite system,BGNSS)在全球范围内的建站约束,采用星间链路(inter-satellite links,ISL)传输其全球导航综合信息(global navigation integrated information,GNII)成为必选途径,其核心问题之一是适应BGNSS传输需求的GNII传输路径选择。通过分析BGNSS星间链路建链特征,探索其对GNII传输时路径选择的约束要素与约束关系。分析北斗GNII业务特征,研究满足其传输需求的路径选择约束要素与约束关系。再对这些约束要素与约束关系展开建模分析,探索适应星间链路特点与GNII传输需求的约束要素调整反馈机制,通过仿真验证基于星间链路的GNII传输路径自适应选择策略与机制。

Research Method About Strategy and Mechanism of Path Adaptive Selection of GNII Transmission Based on ISL

Due to site constraints within worldwide for the Beidou global navigation satellite sys-tem （BGNSS） ,the global navigation integrated information （GNII） must be transmitted through the inter-satellite links （ISL） .One of its core problems is to meet the path selection of GNII transmission in BGNSS ,the research method of this problem is provided in paper .The link characteristics is ana-lyzed to explore the constraint factors and constraints relation on path selection w hen GNII is trans-mitted .And then the constraint factors and constraints relation of path selection is studied under ana-lyzing the BGNII .Finally the feedback adjustment mechanism about constraint factors to adapt the ISL characteristics and transmission requirements is explored through the modeling analysis of the constraint factors and its relationship ,and the adaptive path selection strategy and mechanism of GNII transmission based on ISL is validated with simulation .