Validation of BeiDou Observations
-
Ahmed El-Mowafy
and
Congwei Hu
Abstract
This study presents validation of BeiDou measurements in un-differenced standalone mode and experimental results of its application for real data. A reparameterized form of the unknowns in a geometry-free observation model was used. Observations from each satellite are independently screened using a local modeling approach. Main advantages include that there is no need for computation of inter-system biases and no satellite navigation information are needed. Validation of the triple-frequency BeiDou data was performed in static and kinematic modes, the former at two continuously operating reference stations in Australia using data that span two consecutive days and the later in a walking mode for three hours. The use of the validation method parameters for numerical and graphical diagnostics of the multi-frequency BeiDou observations are discussed. The precision of the system’s observations was estimated using an empirical method that utilizes the characteristics of the validation statistics. The capability of the proposed method is demonstrated in detection and identification of artificial errors inserted in the static BeiDou data and when implemented in a single point positioning processing of the kinematic test.
© 2014 by Walter de Gruyter Berlin/Boston
Articles in the same Issue
- 10.1515/jag-2014-frontmatter2
- Research article
- Magnetic Field Sensor Calibration for Attitude Determination
- High-Precision Surface Inspection: Uncertainty Evaluation within an Accuracy Range of 15μm with Triangulation-based Laser Line Scanners
- Real-time deformation monitoring by a wireless network of low-cost GPS
- Crustal deformation study in the Canary Archipelago by the analysis of GPS observations
- Integrating geomatics and structural investigation in post-earthquake monitoring of ancient monumental Buildings
- Validation of BeiDou Observations
Articles in the same Issue
- 10.1515/jag-2014-frontmatter2
- Research article
- Magnetic Field Sensor Calibration for Attitude Determination
- High-Precision Surface Inspection: Uncertainty Evaluation within an Accuracy Range of 15μm with Triangulation-based Laser Line Scanners
- Real-time deformation monitoring by a wireless network of low-cost GPS
- Crustal deformation study in the Canary Archipelago by the analysis of GPS observations
- Integrating geomatics and structural investigation in post-earthquake monitoring of ancient monumental Buildings
- Validation of BeiDou Observations
