Results 101 to 110 of about 675,804 (143)

On the Performance Degradation of GPS Positioning due to Outdated RT-PPP Products

Proceedings do Simpósio Brasileiro de Sistemas Elétricos, 2023
: Real-time Precise Point Positioning (RT-PPP) is a technique that improves positioning accuracy by correcting common mode errors present in GNSS observables by means of products made available in real-time by specialized agencies, such as the ...
Izadora A. Ramos, Felipe O. Silva, L. A. Oliveira, D. A. Lima, R. P. M. Filho, Jay A. Farrell   +5 more
semanticscholar   +1 more source

State-Domain-Based Integrity Monitoring of Satellite Orbit and Clock Corrections for RT-PPP

IEEE Sensors Journal
Real-time precise point positioning (RT-PPP) relies on real-time service (RTS) as satellite orbit and clock corrections for users to achieve decimeter or centimeter-level positioning.
Jie Zhang, Fuxin Yang, Jiaxiang Li, Pengwei Hu, Xiaosong Liu, Lin Zhao   +5 more
semanticscholar   +1 more source

Improved Performance of RT-PPP During Communication Outages Based on Position Constraints and Stochastic Model Optimization

Remote Sensing
In the practical application of Real-Time Precise Point Positioning (RT-PPP), the outages in receiving spatial state representation (SSR) information due to communication anomalies can result in a decrease or even divergence of the positioning accuracy ...
Xiaosong Liu, Lin Zhao, Fuxin Yang, Jie Zhang, Jinjian Shi, Chuanlei Zheng   +5 more
semanticscholar   +1 more source

Single-Frequency Code-Based RT-PPP GNSS-Aided INS for Connected Vehicles

2024 IEEE 27th International Conference on Intelligent Transportation Systems (ITSC)
Nowadays, precision (and affordable) vehicle navigation is of paramount importance for diverse applications such as Intelligent Transportation Systems (ITS), Connected and Autonomous Vehicles (CAV), Vehicle-to-Vehicle (V2V) communications and Precision ...
Eduardo A. O. Borges, Felipe O. Silva, D. A. Lima, Vinícius M. G. B. Cavalcanti   +3 more
semanticscholar   +1 more source

Enhancing BDS RT-PPP Time Transfer and Synchronization Method With Inconsistent Pseudorange Biases Modeling

IEEE Transactions on Instrumentation and Measurement
Precise time and frequency synchronization measurements are critical for many advanced applications, including mobile communications, the Internet of Things (IoT), and low Earth orbit (LEO) satellite internet. Real-time precise point positioning (RT-PPP)
Wei Song, Yuan Tian, Chuang Shi, Caicong Wu, Dayu Yan   +4 more
semanticscholar   +1 more source

Examining the institutional drivers of public-private partnership (PPP) market performance: a fuzzy set qualitative comparative analysis (fsQCA)

Public Management Review, 2020
This study explores whether different constellations of institutional factors create unique causal ‘paths’ to mature PPP market performance. Using fuzzy set Qualitative Comparative Analysis (fsQCA), the institutional settings of 48 different PPP markets ...
Carter B. Casady
semanticscholar   +1 more source

Risk Allocation Inefficiencies in Chinese PPP Water Projects

, 2018
Risk management is a key concern in public-private partnership (PPP) projects and the efficient allocation of risk remains problematic.
Asheem Shrestha, T. Chan, A. Aibinu, Chuan Chen, Igor Martek   +4 more
semanticscholar   +1 more source

Assessment of Affordable Real-Time PPP Solutions for Transportation Applications

Algorithms
With the availability of multi-frequency, multi-constellation global navigation satellite system (GNSS) modules, precise transportation applications have become attainable.
Mohamed Abdelazeem, Amgad Abazeed, Abdulmajeed Alsultan, Amr M. Wahaballa   +3 more
semanticscholar   +1 more source

Comparative analysis of real-time kinematic and PPP techniques in dynamic environment

, 2020
The main objective of this study is to assess the performance of the relative Real-time Kinematic (RTK) Global Navigation Satellite System (GNSS) Methods; i.e., Single-baseline & Network RTK, and Real-time Precise Point Positioning (RT-PPP); i.e ...
R. M. Alkan, S. Erol, Veli Ilçi, I. M. Ozulu   +3 more
semanticscholar   +1 more source

On the satellite clock datum stability of RT-PPP product and its application in one-way timing and time synchronization

Journal of Geodesy, 2022
Wenfei Guo, Hongming Zuo, Feiyu Mao, Jiaqi Chen, Xiaopeng Gong, Shengfeng Gu, J. Liu   +6 more
semanticscholar   +1 more source