An accurate Kriging-based regional ionospheric model using combined GPS/BeiDou observations
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Mohamed Abdelazeem
,
Rahmi N. Çelik
Abstract
In this study, we propose a regional ionospheric model (RIM) based on both of the GPS-only and the combined GPS/BeiDou observations for single-frequency precise point positioning (SF-PPP) users in Europe. GPS/BeiDou observations from 16 reference stations are processed in the zero-difference mode. A least-squares algorithm is developed to determine the vertical total electron content (VTEC) bi-linear function parameters for a 15-minute time interval. The Kriging interpolation method is used to estimate the VTEC values at a 1 ° × 1 ° grid. The resulting RIMs are validated for PPP applications using GNSS observations from another set of stations. The SF-PPP accuracy and convergence time obtained through the proposed RIMs are computed and compared with those obtained through the international GNSS service global ionospheric maps (IGS-GIM). The results show that the RIMs speed up the convergence time and enhance the overall positioning accuracy in comparison with the IGS-GIM model, particularly the combined GPS/BeiDou-based model.
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© 2018 Walter de Gruyter GmbH, Berlin/Boston
Artikel in diesem Heft
- Frontmatter
- Research Articles
- Assessing the quality of GEOID12B model through field surveys
- Applying the GOCE-based GGMs for the quasi-geoid modelling of Finland
- Application of neural network technique to determine a corrector surface for global geopotential model using GPS/levelling measurements in Egypt
- A Kalman filtering approach to code positioning for GNSS using Cayley-Menger determinants in distance geometry
- Investigation of a L1-optimized choke ring ground plane for a low-cost GPS receiver-system
- An accurate Kriging-based regional ionospheric model using combined GPS/BeiDou observations
- Testing deformation hypotheses by constraints on a time series of geodetic observations
- Accuracy and reliability of gyro measurements at today’s tunnelling projects
- Effect of target color and scanning geometry on terrestrial LiDAR point-cloud noise and plane fitting
Artikel in diesem Heft
- Frontmatter
- Research Articles
- Assessing the quality of GEOID12B model through field surveys
- Applying the GOCE-based GGMs for the quasi-geoid modelling of Finland
- Application of neural network technique to determine a corrector surface for global geopotential model using GPS/levelling measurements in Egypt
- A Kalman filtering approach to code positioning for GNSS using Cayley-Menger determinants in distance geometry
- Investigation of a L1-optimized choke ring ground plane for a low-cost GPS receiver-system
- An accurate Kriging-based regional ionospheric model using combined GPS/BeiDou observations
- Testing deformation hypotheses by constraints on a time series of geodetic observations
- Accuracy and reliability of gyro measurements at today’s tunnelling projects
- Effect of target color and scanning geometry on terrestrial LiDAR point-cloud noise and plane fitting
