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当前,移动用户对基于无线定位技术的新业务的需求不断增加,推动了对无线测距及定位技术的深入研究,向用户提供精确的定位信息已经成为新一代PCS系统的标准业务之一。主要介绍几种基于现有蜂窝通信系统的无线定位技术的实现原理,所要解决的主要问题和应用前景。
Currently, the increasing demand for new services based on wireless positioning technology by mobile subscribers has promoted further research on wireless ranging technology and positioning technology. Providing accurate positioning information to users has become one of the standard services of the new generation of PCS systems. This paper mainly introduces the implementation principles of several wireless location technologies based on existing cellular communication systems, the main problems to be solved and their application prospects.