Results 11 to 20 of about 31,891 (293)

GNSS Real-Time ZTD/PWV Retrieval Based on PPP with Broadcast Ephemerides

Atmosphere
GNSS precise point positioning (PPP) plays an important role in retrieving atmospheric water vapor values and performing numerical weather prediction. However, traditional PPP relies on real-time orbits and clocks, which require continuous internet or ...
Zongqiu Xu, Shuhao Liu, Yantian Xu, Longjiang Tang, Nannan Yang, Gen Zhang   +5 more
doaj   +3 more sources

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
doaj   +2 more sources

Assessing BeiDou-3 PPP-B2b with Signal-in-Space Ranging Error (SISRE) and Its Performances in Positioning and ZTD Estimation [PDF]

Sensors
The PPP-B2b service of BeiDou-3 enables real-time precise point positioning (RT-PPP) through correction information contained in B2b signals, circumventing the reliance on ground-based network infrastructures.
Guangxing Wang, Fen Li, Wenhai Zhou, Guo Chen, Zhiyong Zhu, Xiaomin Jia, Qing An   +6 more
doaj   +2 more sources

Implementation and performance analysis of real time PPP software based on GAMP

Dianzi Jishu Yingyong, 2022
Aiming at the problem that GAMP software lacks the function of real-time precise point positioning at this stage, this paper analyzes and studies the principle and process of the post precise point positioning algorithm in the software, compares the ...
Liu Ya, He Wentao, Zhang Jie
doaj   +2 more sources

Evaluation of BDS-3 B1C/B2b Single/Dual-Frequency PPP Using PPP-B2b and RTS SSR Products in Both Static and Dynamic Applications

Remote Sensing, 2022
The BeiDou Global Navigation Satellite System (BDS-3) can provide PPP-B2b satellite-based Precise Point Positioning (PPP) real-time service to the Asia–Pacific region via PPP-B2b signal transmitted from the three Geostationary Earth Orbit (GEO ...
Ruohua Lan, Cheng Yang, Yanli Zheng, Qiaozhuang Xu, Jie Lv, Zhouzheng Gao   +5 more
doaj   +1 more source

Performance Assessment of Multi-GNSS Real-Time Products from Various Analysis Centers

Remote Sensing, 2022
The performance of real-time precise point positioning (PPP) relies primarily on the availability and quality of orbit and clock corrections. In this research, we collected data streams from 12 real-time mount points of IGS Real-Time Service (RTS) or ...
Chao Yu, Yize Zhang, Junping Chen, Qian Chen, Kexin Xu, Bin Wang   +5 more
doaj   +1 more source

REAL TIME PPP APPLIED TO AIRPLANE FLIGTHT TESTS [PDF]

Boletim de Ciências Geodésicas, 2019
La disponibilité en temps réel des orbites des satellites GNSS, des corrections d'horloge et des biais de code et de phase a permis l'application du positionnement précis en temps réel (RTPPP). Cet article présente la méthodologie concernant le RTPPP et son application aux trajectoires cinématiques des essais en vol des avions, mais sans utiliser le ...
João Francisco Galera Monico, Haroldo Antonio Marques, Ítalo Tsuchiya, Rogério Takeshi Oyama, William Robson Silva de Queiroz, Mauricio Cardoso de Souza, Jens Peter Wentz   +6 more
openaire   +4 more sources

The kinematic performance of real-time PPP services in challenging environment

Measurement, 2022
Abstract This study comparatively tests the performance of two real-time PPP services used in automated vehicle technologies, namely Trimble CenterPoint RTX and TerraStar-C Pro. This test focuses on the convergence time and the accuracy performance of these two services.
Ilci, Veli, Peker, Ali Ufuk
openaire   +2 more sources

Performance of BDS-2/3, GPS, and Galileo Time Transfer with Real-Time Single-Frequency Precise Point Positioning

Remote Sensing, 2021
Single-frequency (SF) receivers are much cheaper than that of dual-frequency (DF). Even though DF precise point positioning (PPP) is nowadays applied in the time community, the cost of equipment is one of the key considerations for time users ...
Xia Xiao, Fei Shen, Xiaochun Lu, Pengli Shen, Yulong Ge   +4 more
doaj   +1 more source

Comprehensive Analyses of PPP-B2b Performance in China and Surrounding Areas

Remote Sensing, 2022
BeiDou Global Navigation Satellite System (BDS-3) provides a regional Precise Point Positioning (PPP) service, called PPP-B2b, for users in China and surrounding areas through B2b signal transmitted from its three geostationary earth orbit (GEO ...
Yan Liu, Cheng Yang, Mengni Zhang
doaj   +1 more source