计算机工程2025，Vol.51Issue(5)：166-176,11.DOI:10.19678/j.issn.1000-3428.0068497
ASO-S卫星源包数据拼接与排序策略研究
Research on Source Packet Data Splicing and Sorting Strategy for ASO-S Satellite
裴欣 1佟继周 2马福利 2于勤思 2杨广建3
作者信息
- 1. 中国科学院国家空间科学中心空间科学卫星运控部,北京 100190||中国科学院大学计算机科学与技术学院,北京 100049
- 2. 中国科学院国家空间科学中心空间科学卫星运控部,北京 100190
- 3. 齐鲁空天信息研究院,山东济南 250101
- 折叠
摘要
Abstract
Source packet data sorting is a key step in processing scientific satellite ground segment data.Typically,sorting methods load all relevant information from a source package to be sorted into memory;this process consumes more memory resources and requires a longer execution time when dealing with large amounts of downstream data.When splicing the downstream data multiple times,the data volume increases exponentially.In addition,widely used sorting methods are not sufficiently comprehensive to handle abnormal data,which may result in some source packages being sorted incorrectly,thereby affecting subsequent data analysis.This paper presents a new source packet data splicing and sorting strategy for the Advanced Space-based Solar Observatory(ASO-S).This strategy deals with different types of anomalies while sorting source packet indexes for single downlink data and the splicing and sorting of source packet indexes for multiple downlink data.An index information fragment segmentation and reordering algorithm is also designed to reduce the amount of data required for source packet reordering and deduplication after the splicing of multiple downlink data.On multiple sets of experimental data,the strategy achieves 100％accuracy in source packet sorting when handling abnormal data such as timecode jumps.It also reduces memory resource usage and execution time during multiple downlink data splicing processes,effectively improving the accuracy of source packet sorting and data processing efficiency,laying a good foundation for the ASO-S satellite to produce high-quality scientific data products.关键词
卫星数据预处理/多次下行数据拼接/源包排序/先进天基太阳天文台/单次下行Key words
satellite data preprocessing/multiple downlink data splicing/source packet sorting/Advanced Space-based Solar Observatory(ASO-S)/single downlink分类
信息技术与安全科学引用本文复制引用
裴欣,佟继周,马福利,于勤思,杨广建..ASO-S卫星源包数据拼接与排序策略研究[J].计算机工程,2025,51(5):166-176,11.
