Improvement of Reachability and Promptness of an Augmentation-Signal-Based Early Warning System Using Multiple Satellites of the QZSS Constellation
Daisuke IwaizumiShota IinoNaohiko Kohtake
Graduate School of System Design and Management,Keio University
摘要：During an environmental disaster it is likely that essential information will not delivered because of damage to the communicated infrastructure.Satellites,which will be unaffected by environmental damage,may provide a way to communicate essential information during a disaster.We aimed to determine if using multiple satellites of the Quasi-Zenith Satellite System（QZSS） to deliver disaster information can improve communication during a disaster.The ability to receive an emergency message from multiple satellites was analyzed,using the only QZSS satellite.Predictions of reception were also made for the three proposed QZSS satellites by overlaying sky images with the satellite constellation.The results from this study suggest that delivering emergency messages via multiple satellites in areas where satellites have high elevation will improve communication.Additionally,delivering messages via the geostationary satellite and quasi-zenith satellites will likely be effective in areas where satellites have low elevation.
关键词：
Global navigation satellite system; Quasi-Zenith Satellite; Early warning system; Augmentation Signal; Disaster Information;
会议名称：
2015 International Conference on Future Computational Technologies （ICFCT’2015）; International Conference on Advances in Chemical, Biological & Environmental Engineering （ACBEE）; International Conference on Urban Planning, Transport and Construction Engineering （ICUPTCE’15）
会议时间：
2015-03-29;2015-03-29;2015-03-29
会议地点：
Singapore;Singapore;Singapore
- 专辑：
基础科学; 信息科技
- 专题：
自然地理学和测绘学; 电信技术
- 分类号：
P228.4;TN967.1
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