Results 31 to 40 of about 2,911,374 (253)

Kinematic ME-MAFA for Pseudolite Carrier-Phase Ambiguity Resolution in Precise Single-Point Positioning

Sensors, 2020
Precise single-point positioning using carrier-phase measurements can be provided by the synchronized pseudolite system. The primary task of carrier phase positioning is ambiguity resolution (AR) with rapidity and reliability. As the pseudolite system is
Kai Liu, Xiye Guo, Jun Yang, Xiaoyu Li, Changshui Liu, Yuqiu Tang, Zhijun Meng, Enqi Yan   +7 more
doaj   +1 more source

On the interoperability of IGS products for precise positioning with ambiguity resolution [PDF]

, 2020
Techniques enabling precise point positioning with ambiguity resolution (PPP-AR) were developed over a decade ago. Several analysis centers of the International GNSS Service (IGS) have implemented such strategies into their software packages and are ...
Loyer, Sylvain, Schaer, Stefan, Banville, Simon, Geng, Jianghui, Strasser, Sebastian, Springer, Tim   +5 more
core   +1 more source

Performance of Single-Epoch EWL/WL/NL Ambiguity-Fixed Precise Point Positioning with Regional Atmosphere Modelling

Remote Sensing, 2021
Precise point positioning (PPP) with ambiguity resolution (AR) can improve positioning accuracy and reliability. The narrow-lane (NL) AR solution can reach centimeter-level accuracy but there is a certain initialization time. In contrast, extra-wide-lane
Wang Gao, Qing Zhao, Xiaolin Meng, Shuguo Pan   +3 more
doaj   +1 more source

Ambiguity Resolution for Long Baseline in a Network with BDS-3 Quad-Frequency Ionosphere-Weighted Model

Remote Sensing, 2022
For long baseline in a network, the traditional combined ionosphere-free (IF) + wide-lane (WL) strategy is commonly used, but the residual tropospheric delays and larger noise hamper the basic ambiguity resolution (AR).
Ruicheng Zhang, Chengfa Gao, Zhibin Wang, Qing Zhao, Rui Shang, Zihan Peng, Qi Liu   +6 more
doaj   +1 more source

GNSS ambiguity resolution with controllable failure rate for long baseline network RTK

, 2014
Many large-scale GNSS CORS networks have been deployed around the world to support various commercial and scientific applications. To make use of these networks for real-time kinematic positioning services, one of the major challenges is the ambiguity ...
Li, Bofeng, Shen, Yunzhong, Feng, Yanming, Gao, Weiguang, Yang, Ling   +4 more
core   +1 more source

An integer ambiguity clustering estimator for real-time precise point positioning

Geo-spatial Information Science
Real-time precise point positioning with ambiguity resolution (PPP-AR) is considered a valuable positioning tool applicable in various fields. Limited by the precision and stability of real-time satellite products and observation streams, it is ...
Kunlun Zhang, Jianghui Geng, Guangcai Li, Jiang Guo   +3 more
doaj   +1 more source

Assessing IGS GPS/Galileo/BDS-2/BDS-3 phase bias products with PRIDE PPP-AR

Satellite Navigation, 2021
Ambiguity Resolution in Precise Point Positioning (PPP-AR) is important to achieving high-precision positioning in wide areas. The International GNSS (Global Navigation Satellite System) Service (IGS) and some other academic organizations have begun to ...
Jianghui Geng, Songfeng Yang, Jiang Guo
doaj   +1 more source

Impact of GPS/BDS Satellite Attitude Quaternions on Precise Point Positioning with Ambiguity Resolution

Remote Sensing, 2021
Precise point positioning with ambiguity resolution (PPP-AR) based on multiple global navigation satellite system (multi-GNSS) constellations is an important high-precision positioning tool.
Songfeng Yang, Qiyuan Zhang, Xi Zhang, Donglie Liu   +3 more
doaj   +1 more source

Tracking Battery Microstructural Degradation Through Directional Thermal Transport Signatures

Advanced Functional Materials, EarlyView.
In lithium‐ion batteries, heat conduction varies between the through‐plane and in‐plane directions because of the cell's layered structure. Therefore, cell degradation influences thermal conductivity in each direction uniquely due to detailed microstructural and compositional changes.
Mohammad Shoghi Tekmedash, Rituparna Mohanty, Jack Leber, David Nageb, Mirella Richard, Sharan Singh, Amin Reihani   +6 more
wiley   +1 more source

A Theoretical and Empirical Integrated Method to Select the Optimal Combined Signals for Geometry-Free and Geometry-Based Three-Carrier Ambiguity Resolution

Sensors, 2016
Twelve GPS Block IIF satellites, out of the current constellation, can transmit on three-frequency signals (L1, L2, L5). Taking advantages of these signals, Three-Carrier Ambiguity Resolution (TCAR) is expected to bring much benefit for ambiguity ...
Dongsheng Zhao, Gethin Wyn Roberts, Lawrence Lau, Craig M. Hancock, Ruibin Bai   +4 more
doaj   +1 more source