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Network system for wide area DGNSS

机译:广域DGNSS网络系统

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摘要

A differential global navigation satellite system (DGNSS) is always used to broadcast augmentation messages for GNSS to receivers in the covering areas through geostationary earth orbit (GEO) satellites to improve the accuracy, reliability, and integrity of navigation. GEO broadcasting is an efficient strategy for avionic applications and other modes of transport. For some applications though, it may be of interest to broadcast additional augmentation messages through other transmission means. For instance, it may be difficult for GEO reception in cities or indoors because of building obstacles. Real-time broadcasting of navigation augmentation messages through the internet is an important hot-spot of research. Based on characteristics of navigation augmentation messages, combined application layers multicast with i3 (internet indirection infrastructure) multicast, is presented herein with a hierarchy mix multicast system based on node heterogeneity to broadcast differential correction messages. The qualities of the system network structure are analyzed. After the securities requirements are analyzed, the types and solutions of security issues were briefly studied.
机译:始终使用差分全球导航卫星系统(DGNSS)通过地球静止地球轨道(GEO)卫星向覆盖区域的接收机广播GNSS的增强消息,以提高导航的准确性,可靠性和完整性。 GEO广播是航空电子应用和其他运输方式的有效策略。但是对于某些应用,可能会感兴趣的是通过其他传输方式广播其他增强消息。例如,由于建筑障碍,可能难以在城市或室内进行GEO接收。通过互联网实时广播导航增强信息是一个重要的研究热点。基于导航增强消息的特性,在本文中提出了基于i3(互联网间接基础结构)多播的组合应用层多播和基于节点异构性的层次混合多播系统,以广播差分校正消息。分析了系统网络结构的质量。在分析了证券需求之后,简要研究了证券问题的类型和解决方案。

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    Science Institute, Air Force Engineering University, XiAn, ShanXi, 710051, China;

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