Titlebook: GNSS – Global Navigation Satellite Systems; GPS, GLONASS, Galile Bernhard Hofmann-Wellenhof,Herbert Lichtenegger,El Book 2008 Springer-Verl

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978-3-211-73012-6Springer-Verlag Vienna 2008

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Glonass,erprise of Applied Mechanics has been the main contractor being responsible for the general development and implementation of the system. Moreover, the development and manufacturing of the satellites and their launch facilities and the corresponding control system belong to the tasks of this enterprise.

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Introduction,hat was foretold by the early priest astronomers who in essence were the world’s first surveyors. Today, it is known that the alignment of such structures as the pyramids and Stonehenge was accomplished by celestial observations and that the structures themselves were used to measure the time of celestial events such as the vernal equinox.

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Satellite signals,-way downlink ranging systems. The satellites emit modulated signals that include the time of transmission to derive ranges as well as the modeling parameters to compute satellite positions. A three-layer model describes the emitted satellite signals best (Fig. 4.1).

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Observables,t” where two clocks are involved, namely one in the satellite and the other in the receiver. Thus, the ranges are biased by satellite and receiver clock errors and, consequently, they are denoted as pseudoranges.

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