Results 241 to 250 of about 21,652,291 (267)

GPS real-time precise point positioning for aerial triangulation

GPS Solutions, 2016
We extend the application of real-time kinematic PPP to aerial triangulation using GPS to determine coordinates of the antenna installed on the airplane, using real-time satellite products from IGS and the CNES Analysis Center. In order to verify the performance of real-time kinematic PPP for aerial triangulation, three tests with varying aerial and ...
Junbo Shi, Xiuxiao Yuan, Yang Cai, Gaojing Wang   +3 more
openaire   +1 more source

Analysis of static and dynamic real-time precise point positioning and precision based on SSR correction

2016 IEEE International Conference on Information and Automation (ICIA), 2016
This paper realizes real-time precise point positioning and implements precision analysis on RTKLIB software based on Real Time Precise Point Positioning(RTPPP) model of broadcast ephemeris corrections via the real-time Ntrip streams, which contains state space representation(SSR) correction information provided by International GNSS Service (IGS). The
Zhen Li, Jingyu Zhang, Tao Li, Xiaofeng He, Meiping Wu   +4 more
openaire   +2 more sources

The Impact of Precise Clock Systematical Bias on Real-Time Precise Point Positioning

2010 2nd International Conference on Information Engineering and Computer Science, 2010
In order to meet real-time computation, precise clock is always calculated via single difference observations between epochs, which can avoid the ambiguity parameters and fasten the speed. However, the results of this algorithm are the variation of clock value, hence initial satellite clocks have to be lead-in.
Yanli Zheng, Weiwei Song
openaire   +1 more source

Real time dynamic precise point positioning with mixture filtering

Survey Review, 2012
The linearisation of non-linear observation equations in precise point positioning (PPP) can always bring out additional errors. To weaken such linearisation errors and improve the performance of unscented Kalman filtering (UKF), a kind of mixture filtering based on combined UKF and extended Kalman filtering (EKF) is presented in this contribution ...
openaire   +1 more source

High-Precision GLONASS Orbit Prediction for Real-Time Precise Point Positioning

2018
With the revitalization of GLONASS constellation, it becomes feasible to integrate the GLONASS into the conventional GPS-only real-time precise point positioning (PPP) processing to enhance system availability and reliability. As generation of real-time orbit corrections is a crucial part of the real-time PPP system, a high-precision GLONASS orbit ...
Peiyuan Zhou, Yang Gao, Hongzhou Yang
openaire   +1 more source

GPS/BDS Real-Time Precise Point Positioning for Kinematic Maritime Positioning

2017
Real-time precise point positioning (PPP) has been evolved as a powerful technique to achieve globally homogenous decimeter or even centimeter positioning accuracy, which is widely used for maritime precise positioning applications. Currently, the research of the real-time PPP for maritime applications mainly focuses on GPS and GLONASS.
Fuxin Yang, Liang Li, Lin Zhao, Chun Cheng   +3 more
openaire   +1 more source

Precision Analysis and Evaluation of BDS Real-time Precise Point Positioning

2022 13th International Conference on Mechanical and Aerospace Engineering (ICMAE), 2022
Xiangyang Han, Wanlin Zhao, Ya Cui, Yijin Chen   +3 more
openaire   +1 more source

A real-time ionospheric model based on GNSS Precise Point Positioning

Advances in Space Research, 2013
Abstract This paper proposes a method of real-time monitoring and modeling the ionospheric Total Electron Content (TEC) by Precise Point Positioning (PPP). Firstly, the ionospheric TEC and receiver’s Differential Code Biases (DCB) are estimated with the undifferenced raw observation in real-time, then the ionospheric TEC model is established based on
Tu, R., Zhang, H., Ge, M., Huang, G.
openaire   +4 more sources

Real Time Satellite Clocks in Single Frequency Precise Point Positioning

, 2009
Computing a position with Single Frequency Precise Point Positioning (SF-PPP) algorithms compels to the use of satellite clock corrections, and for use with real-time applications, only a limited set of sources for orbit and clock data is available ...
van Bree, Roel J.P., Tiberius, Christian C.J.M, Hauschild, André   +2 more
openaire   +3 more sources

Time Synchronization Method Based on Real-Time Precise Point Positioning

2020
<p>Precise point positioning (PPP) technique is an effective tool for time and frequency applications. Using phase/code observations and precise products, the PPP time transfer allows an accuracy of sub-nanoseconds within a latency of several days. Although the PPP time transfer is usually implemented in the post-processing mode,
Daqian Lyu, Tianbao Dong, Fangling Zeng, Xiaofeng Ouyang   +3 more
openaire   +1 more source