【作者】 徐文超； 杨艳琴； 匡磊； 郑正奇； 董大南；

【Author】 Xu Wenchao, Yang Yanqin, Kuang Lei, Zheng Zhengqi, Dong Danan Information and Technology School, East China Normal University, Shanghai, China

【机构】 华东师范大学信息科学技术学院；

【摘要】 现有GNSS定位导航系统侧重于用户定位及时间服务功能,用户位置信息的向外传递一般借助其它通信手段实现。北斗系统具备了短报文通信的独特优势,信道容量受限特点对其应用扩展有所影响。本文归纳和比较了国内外GNSS位置信息传递、导航与通信结合的若干应用系统,分析了一种GNSS定位与VSAT卫星通信结合的中低速率双向链路位置服务应用方法,对于某些兼有定位与通信要求的系统建设及应用集成具有一定参考意义。更多还原

【Abstract】 Current GNSS services mainly provide positioning and time information, which are distributed by ground-based communication system. The Chinese Beidou navigation satellite system supports duplex short message service (SMS), which displays additional advantage over other GNSS. The classic real-time application, such as low bit-rate voice and image data, however, can’t be transferred by SMS. This article investigates and compares several applications, including GNSS system, and the navigation and communication combined system. We will discuss a conjunction approach, which combining GNSS positioning and VSAT technique, to solve low-medium bit-rates duplex data transferring. The content should be useful to design and implement the positioning and communication integration system.更多还原