Results 71 to 80 of about 850,344 (220)
Engineering Proceedings, 2023 The Galileo High-Accuracy Service (HAS) is providing free Precise Point Positioning (PPP) corrections for Galileo and GPS satellites through the E6b signal and the internet.
Camille Parra +4 more
doaj +1 more source
GPS/GLONASS Combined Precise Point Positioning with Receiver Clock Modeling
Sensors, 2015 Research has demonstrated that receiver clock modeling can reduce the correlation coefficients among the parameters of receiver clock bias, station height and zenith tropospheric delay.
Fuhong Wang, Xinghan Chen, Fei Guo
doaj +1 more source
GNSS precise point positioning :the enhancement with GLONASS [PDF]
, 2013 PhD ThesisPrecise Point Positioning (PPP) provides GNSS navigation using a stand-alone receiver with no base station. As a technique PPP suffers from long convergence times and quality degradation during periods of poo satellite visibility or geometry ...
Martin, Ian
core
Network-based High Accuracy Positioning with the GPSTk [PDF]
, 2010 This paper presents an implementation of a postprocess kinematic positioning technique similar to PPP (Precise Point Positioning) but based on a network of stations.
Hernández Pajares, Manuel +3 more
core +1 more source
Real-Time Precise Point Positioning Using Tomographic Wet Refractivity Fields
Remote Sensing, 2018 The tropospheric wet delay induced by water vapor is a major error source in precise point positioning (PPP), significantly influencing the convergence time to obtain high-accuracy positioning.
Wenkun Yu +3 more
doaj +1 more source
Performance-Efficiency Trade-off of Low-Precision Numerical Formats in Deep Neural Networks [PDF]
, 2019 Deep neural networks (DNNs) have been demonstrated as effective prognostic models across various domains, e.g. natural language processing, computer vision, and genomics. However, modern-day DNNs demand high compute and memory storage for executing any reasonably complex task.
arxiv +1 more source
Real-Time Single Frequency Precise Point Positioning Using SBAS Corrections
Sensors, 2016 Real-time single frequency precise point positioning (PPP) is a promising technique for high-precision navigation with sub-meter or even centimeter-level accuracy because of its convenience and low cost. The navigation performance of single frequency PPP
Liang Li +5 more
doaj +1 more source
Analysis of Regional Satellite Clock Bias Characteristics Based on BeiDou System
Remote Sensing, 2022 With the continuous development of the Global Navigation Satellite System (GNSS), the calculation theory and strategy of the global Satellite Clock Bias (SCB) tends to be mature.
Wenxuan Liu +6 more
doaj +1 more source
GNSS Precise Point Positioning Using Low-Cost GNSS Receivers [PDF]
, 2018 There are positioning techniques available such as Real-Time Kinematic (RTK) which allow user to obtain few cm-level positioning, but require infrastructure cost, i.e., setting up local or regional networks of base stations to provide corrections ...
Gill, Maninder Singh
core
Long-Term Performance Evaluation of BeiDou PPP-B2b Products and Its Application in Time Service
Remote Sensing, 2023 Precise Point Positioning (PPP) is an official service of the BeiDou Global Navigation Satellite System (BDS-3) through the PPP-B2b signal. In this paper, we mainly focus on the long-term performance evaluation of BDS-3 PPP-B2b products and their ...
Qianqian He +6 more
doaj +1 more source