Results 71 to 80 of about 32,795 (346)

The Bias in PPP-B2b Real-Time Clock Offset and the Strategy to Reduce It

Remote Sensing, 2022
Precise point positioning can provide accurate coordinates to users without reference stations, and the high-precision real-time clock offset product is necessary for real-time precise point positioning application.
Jinhuo Liu, Chengpan Tang, Shanshi Zhou, Xiaogong Hu, Yufei Yang, Jianhua Yang, Yuchen Liu   +6 more
doaj   +1 more source

Consistency of PPP GPS and strong-motion records: case study of Mw9.0 Tohoku-Oki 2011 earthquake [PDF]

, 2015
GPS and strong-motion sensors are broadly used for the monitoring of structural health and Earth surface motions, focusing on response of structures, earthquake characterization and rupture modeling.
Houlié, Nicolas, Meindl, Michael, Psimoulis, Panos, Rothacher, Markus   +3 more
core   +2 more sources

Cube: An Open-Source Software for Clock Offset Estimation and Precise Point Positioning with Ambiguity Resolution

Remote Sensing
Precise point positioning (PPP) is a prevalent, high-precision spatial absolution positioning method, and its performance can be enhanced by ambiguity resolution (AR).
Shuai Liu, Yunbin Yuan, Xiaosong Guo, Kezhi Wang, Gongwei Xiao   +4 more
doaj   +1 more source

Kinematic precise point positioning heights enhancement using static measurements and Voronoi’s corrector surface

International Journal of Digital Earth
Recently, the use of Precise Point Positioning (PPP) has spread widely. Unlike Relative Positioning techniques, PPP uses only a single receiver unit. Although it provides sub-centimeter horizontal accuracy, the vertical accuracy of PPP is a hot topic in ...
Ahmed Al Shouny, Abdullah Kamel, Yehia Miky   +2 more
doaj   +1 more source

Kinematic Precise Point Positioning Using Multi-Constellation Global Navigation Satellite System (GNSS) Observations

ISPRS International Journal of Geo-Information, 2017
Multi-constellation global navigation satellite systems (GNSSs) are expected to enhance the capability of precise point positioning (PPP) by improving the positioning accuracy and reducing the convergence time because more satellites will be available ...
Xidong Yu, Jingxiang Gao
doaj   +1 more source

Multi-constellation GNSS precise point positioning with multi-frequency raw observations and dual-frequency observations of ionospheric-free linear combination

Satellite Navigation, 2020
Precise point positioning (PPP) is famous for its capability of high-precision positioning with just one station as long as the receiver can receive global navigation satellite system (GNSS) signals.
Xiangdong An, Xiaolin Meng, Weiping Jiang   +2 more
doaj   +1 more source

Review of code and phase biases in multi-GNSS positioning [PDF]

, 2016
A review of the research conducted until present on the subject of Global Navigation Satellite System (GNSS) hardware-induced phase and code biases is here provided. Biases in GNSS positioning occur because of imperfections and/or physical limitations in
A Al-Shaery, A Leick, A Tetewsky, Anna B. O. Jensen, B Hoffman-Wellenhof, C Cai, C Deng, D Laurichesse, D Odijk, E Sardon, GE Lanyi, Gunnar Hedling, H He, J Chen, J Geng, J Kouba, J Paziewski, J Tegedor, J-M Sleewaegen, JF Zumberge, JM Dow, L Wanninger, M Ge, Martin Håkansson, Milan Horemuz, P Collins, P Teunissen, PJG Teunissen, PJG Teunissen, S Banville, S Banville, S Chuang, S Gleason, W Bertiger, X Li, Y Gao   +35 more
core   +1 more source

Application of “Galileo High Accuracy Service” on Single-Point Positioning

Sensors, 2023
Employment of precise positioning techniques will enable low-cost receivers for a variety of applications. The complexity of techniques such as Precise Point Positioning (PPP), or differential techniques that require the use of external sources of ...
Antonio Angrisano, Silvia Ascione, Giovanni Cappello, Ciro Gioia, Salvatore Gaglione   +4 more
doaj   +1 more source

Long-period surface motion of the multi-patch Mw9.0 Tohoku-Oki earthquake [PDF]

, 2014
We show that it is possible to capture the oscillatory ground motion induced by the Tohoku-Oki event for periods ranging from 3 to 100s using Precise Point Positioning (PPP).
Anderson, Aoi, Aoi, Assimaki, Avallone, Behrens, Blewitt, Blewitt, Blewitt, Bock, Bock, Bock, Boore, Branzanti, Cauzzi, Chávez-García, Clotaire Michel, Crowell, Dach, Dach, Delouis, Denolle, Ducic, Emore, Feng, Galvan, Ge, Guo, Houlié, Houlié, Houlié, Houlié, Hurter, Ji, Jokinen, Karia, Kobayashi, Koketsu, Koketsu, Larson, Lermo, Li, Li, Liu, Maercklin, Mai, Mamula, Margaris, Markus Rothacher, Melgar, Meng, Michael Meindl, Mitsui, Miyazaki, Moschas, Newman, Nicolas Houlié, O'Toole, O'Toole, Ohta, Ohta, Panos A. Psimoulis, Perler, Psimoulis, Psimoulis, Psimoulis, Psimoulis, Roten, Roten, Sagiya, Singh, Sobolev, Stewart, Stiros, Suzuki, Tu, Vigny, Wang, Wright, Yagi, Yamanaka, Yokota, Yue, Zhao, Çelebi   +84 more
core   +3 more sources

Accuracy of Precise Point Positioning (PPP) with the use of different International GNSS Service (IGS) products and stochastic modelling

Geodesy and Cartography, 2018
This paper provides analyses of the accuracy and convergence time of the PPP method using GPS systems and different IGS products. The official IGS products: Final, Rapid and Ultra Rapid as well as MGEX products calculated by the CODE analysis centres ...
D. Kiliszek, M. Szolucha, K. Kroszczyński   +2 more
semanticscholar   +1 more source