摘要
针对北斗卫星导航系统(BDS)时空数据组织管理过程中数据存储与分析困难的问题,本文面向BDS时空数据,通过分析其数据特征,引入时空粒化思想,从空间粒度、时间粒度、时空粒度三个粒度对BDS时空对象进行多粒度表达.参考面向对象和基态修正模型的方法,建立BDS多粒度时空数据模型的概念模型,提出一种BDS时空对象多粒度表达方法,并实例证明该方法可以实现BDS时空数据的组织与存储.
Focus on the difficulty of storing and analyzing in the process of organizing and managing spatio-temporal data of BDS,this paper selects spatio-temporal data of BDS as the research object and analyses its characteristics.Idea of space-time granulation is introduced to express it from three granularities:space granularity,time granularity and space-time granularity.According to the method of Object-Oriented and Modified models of Ground State,the conceptual model of multi-granularity spatio-temporal data of BDS are given.A method to construct multi-granularity spatio-temporal data model based on BDS is proposesed.One example proves that this method can realize the organization and management of spatial-temporal data of BDS.
作者
邓超
王磊
章秉川
贾宝
DENG Chao;WANG Lei;ZHANG Bingchuan;JIA Bao(PLA Strategic Support Force Information Engineering University,Zhengzhou 450001,China;The Chinese People's Armed Police Force ZheJiang Crops,Hangzhou 310016,China;Henan Institute of Surveying and Mapping,Zhengzhou 450003,China)
出处
《全球定位系统》
CSCD
2019年第6期1-6,共6页
Gnss World of China
基金
国家自然科学基金(41001226)
中国博士后科学基金面上资助项目(2015M582831)
矿山空间信息技术国家测绘地理信息局重点实验室开放基金(KLM2018)
