太阳风粒子数据映射模型的设计与实现

摘要

In order to obtain the structured data that the third stage solar wind particles can analyze and process, we load the data into memory and use the technology of LINQ to solve the integrity of data mapping and quick access. By designing a data mapping model, the labels and products of the PDS data will be mapped to the codomain and the attribute domain separately. The experimentation is made, and double caching and the Bessel interpolation are adopted. The empirical results show that the model features effectiveness, completeness and high alignment. This model which is based on memory mapping can be a better way to solve the heterogeneous data source power shortage problem during the rapid access of the structured data. It gives a foundation to analyse the frequency spectrum, the ingredients the flux and the distribution characteristics varying with time and space.%为了能够快速获得第三级太阳风粒子可分析处理的结构化数据,本文采用将数据映射到内存和采用语言集成查询技术解决数据的完整映射和快速访问.通过设计数据映射模型,将用PDS数据的数据标签和数据产品分别映射到模型的值域和属性域,解决本地或网络数据内存映射的问题.为测试这个实例,采用双倍缓冲和贝塞尔插值技术对数据能谱进行了实时绘制.结果表明该模型具有高效性、完备性和高吻合度.这个基于内存映射的模型能够较好地解决异构数据快速结构化数据访问的数据源动力不足问题,为进一步处理和分析太阳高能粒子的频谱、成份和通量及随时间、空间变化的分布特征等提供了基础.