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Estimation of Multi-Constellation GNSS Observation Stochastic Properties Using a Single-Receiver Single-Satellite Data Validation Method

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Open access
Authors
El-Mowafy, Ahmed
Date
2015
Type
Journal Article

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El-Mowafy, A. 2015. Estimation of Multi-Constellation GNSS Observation Stochastic Properties Using a Single-Receiver Single-Satellite Data Validation Method. Survey Review. 47 (341): pp. 99-108.
Source Title
Survey Review
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Department of Spatial Sciences
Remarks

This is an Author's Original Manuscript of an article published by Taylor & Francis in The Service Industries Journal on 27/04/2014 available online at http://www.tandfonline.com/ 10.1179/1752270614Y.0000000100

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Abstract

The single receiver single satellite validation method is a technique that screens data from each satellite independently to detect and identify faulty observations. A new method for estimation of the stochastic properties of multi-constellation GNSS observation is presented utilising parameters of this validation method. Agreement of the characteristics of the validation statistics with theory is used as the criterion to select the best precision of the observations, spectral density and correlation time of the unknowns. A curve fitting approach in an iterative scheme is employed. The method is applicable to any GNSS with any arbitrary number of frequencies. Demonstration of the method results and performance is given using multiple-frequency data from GPS, GLONASS and Galileo in static and kinematic modes.