【摘 要】
：
Since Google launched the Android 7.0 operating system, smartphone has opened the original GNSS observation reading interface for the first time, enabling d
【机 构】
：
Information Engineering University, Zhengzhou, China
论文部分内容阅读
Since Google launched the Android 7.0 operating system, smartphone has opened the original GNSS observation reading interface for the first time, enabling developers to further develop precision positioning and location service applications based on the original GNSS observation. Aiming at different brands of Android smartphones, the original BDS data quality of smartphone is analyzed and evaluated in terms of the number of visible satellites, signal-to-noise ratio, pseudorange noise, Doppler velocimetry. Comparing the current measurement re-ceivers, the static and dynamic positioning results of smartphone are analyzed. A dynamic positioning algorithm based on Doppler velocimetry and adaptive Kal-man filtering is proposed, which effectively improves the positioning accuracy and reliability.
其他文献
The performance of on-board atomic clock directly affects the accuracy of navigation and positioning for users. Evaluating the performance of on-board atomi
本文主要描述了基于北斗导航的车辆监控系统整体设计方案及服务器应用系统的设计与实现.系统包含车载目标终端、服务器和指挥调度终端三部分,通过计算机网络、北斗卫星通信链
GPS载波相位周跳探测是高精度定位所必须解决的关键问题,传统方法诸如相位伪距组合法无法探测1周以下小周跳,电离层残差法对双频同时发生相同的0.5周以下小周跳不灵敏,且无法
The B1C signal of Beidou-3 satellite navigation system adopts data and pilot separation to realize the transmission of message information and ranging funct
In this paper, we systematically discussed and analyzed the uncertainties of four typical time transfer links, including the satellite-ground two-way link,
The GNSS signals are vulnerable to radio frequency interferences. Among these interferences, continuous wave interferences (CWIs) are able to jam the GNSS s
Given the communication features of STDMA among inter-satellite links, this the-sis proposed a hierarchical planning method for the inter-satellite links ne
为了解决高灵敏度卫星导航接收机漫天搜星的问题,本文介绍了一种基于高灵敏度卫星导航接收机(FPGA+DSP)的GPS历书解算和卫星可见性预测的方法.根据高灵敏度卫星导航接收机的
Under spoofing attacks, the positioning results of GNSS receivers will be towed away. In this study, based on the correlation results of mixed signals, a no
This paper focuses on the approach to attitude estimation. When describing the attitude of a dynamic object, the quaternion has a better numerical continuit