摘要
传统的被动式定位,时钟同步采用空口同步技术,这样在小区信号覆盖不好或者同频干扰严重的地方,同步性能急剧恶化,导致定位效率大大降低。基于5G的无线定位时间同步系统,为了克服上述场景的缺陷,将空口同步技术与GNSS授时技术相结合,借助无线通信模块,将室内定位系统与室外定位系统同步组网,协同定位,提升了在复杂场景的定位效率。
In the traditional passive positioning,the clock synchronization adopts the air port synchronization technology.In this way,when the cell signal coverage is not good or the same frequency interference is serious,the synchronization performance deteri⁃orates rapidly,which leads to the greatly reduced positioning efficiency.Based on 5g wireless positioning time synchronization sys⁃tem,in order to overcome the defects of the above scenarios,the air port synchronization technology and GNSS time service technol⁃ogy are combined.With the help of wireless communication module,the indoor positioning system and outdoor positioning system are synchronized to form a network and coordinate positioning,which improves the positioning efficiency in complex scenes.
作者
单风云
SHAN Feng-yun(Wuhan City Polytechnic,Wuhan 430064,China)
出处
《电脑知识与技术》
2021年第6期32-34,39,共4页
Computer Knowledge and Technology
基金
中华职教社关于《5G与人工智能、工业互联网、智能家居与物联网、智慧体育人才培养体系研究与实践》大课题下面的子课题“提升职业院校5G与人工智能教师技能方向研究”(ZJS20200806)。
关键词
无线定位
同步
卫星授时
无线数传
wireless location
synchronization
satellite time service
wireless data transmission
