摘要
智能手机使用差分数据增强定位能力已经成为当前趋势,该文首先详细论述了目前A-GNSS(Assisting-Global Navigation Satellite System)技术定位技术的特点以及存在的缺陷,据此提出一种基于AGNSS的改进PPP(Precise Point Positioning)定位方案,并给出了手机在开阔环境、城市环境和林区环境中测试验证的结果。该文方法可将商用发售版手机定位精度修正至亚米级,对城市环境和林区环境下定位精度也有很好的提升效果。
In this article, it firstly discusses in detail the characteristics and defects of the current A-GNSS(AssistingGlobal Navigation Satellite System) technology positioning technology. Base on that, an improved PPP(Precise Point Positioning) positioning scheme is proposed based on A-GNSS, and the verification results with mobile phones are demonstrated in the open environment, urban environment and forest environment. This method can correct the positioning accuracy of commercial mobile phones to sub meter level, and can also improve the positioning accuracy in urban environment and forest environment.
作者
刘旭
LIU Xu(China Academy of Information and Communications Technology,Beijing,100191 China)
出处
《科技资讯》
2022年第11期7-9,116,共4页
Science & Technology Information
作者简介
刘旭(1989—),男,硕士,工程师,研究方向为卫星导航定位。
