SATNAB - Voruntersuchung fuer ein satellitennavigationsgestuetztes Bodenexperiment Technischer Bericht

Abstract

Within the phase 1 of the project SATNAB the theoretical basis for a satellite navigation based ground experiment was developed and analysed. The procedure of measurement offers the possibility to determine the exact position of a mobile, trackborne user by means of a single Navigation satellite of a future European navigation Satellite System (ENSS/ GNSS 2). In this study the requirements of the experiment for different satellite orbits were investigated. Two scenarios for the experiment have to be distinguished. The first scenario is the verification of the accuracy of positioning of the future satellite navigation system, named reference measuring system. The second one implies the application of positioning in track bound traffic, named the location scenario. As the reference measuring system is a standard of comparison for the quality of the satellite navigation, an error budget was built in. Based on that estimation the concept for the scenarios was defined. A realisation concept for the test configuration was also developed. The predictable errors in the control segment and in the space segment were estimated. This investigation focused on the alignment of the antenna and the clock synchronisation between the oscillator of the space segment and the one placed in the moving vehicle. The procedure of the experiment was summarised in an schedule for the next phases. (orig.)SIGLEAvailable from TIB Hannover: F99B692 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Bildung, Wissenschaft, Forschung und Technologie, Bonn (Germany); DLR Deutsches Zentrum fuer Luft- und Raumfahrt e.V., Bonn (Germany)DEGerman