Combined Galileo/GPS architecture for enhanced sensitivity reception
| Autor: | Robert Weigel, Günter Rohmer, Norbert Lemke, Thomas Pany, Bernd Eissfeller, Andreas Schmid, Gunter Heinrichs, Henning Ehm, Jon Winkel, André Neubauer, Roland Kaniuth, Matthias Overbeck, Jose Angel Avila-Rodriguez |
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| Přispěvatelé: | Publica |
| Rok vydání: | 2005 |
| Předmět: |
Engineering
Precision Lightweight GPS Receiver business.industry Topology (electrical circuits) symbols.namesake Software Electronic engineering Global Positioning System Galileo (satellite navigation) symbols Baseband Sensitivity (control systems) Electrical and Electronic Engineering business Digital signal processing Computer hardware |
| Zdroj: | AEU - International Journal of Electronics and Communications. 59:297-306 |
| ISSN: | 1434-8411 |
| DOI: | 10.1016/j.aeue.2005.05.013 |
| Popis: | Several new requirements and challenges are introduced with the transition of traditional navigation applications towards location-based services (LBSs). This paper introduces the HIGAPS receiver concept. Aim of the HIGAPS project is to develop the concept for a combined Galileo/GPS receiver that is specially tailored for LBSs, E-911, and other consumer market applications. After a brief overview of the receiver, the partitioning into analog hardware, digital hardware, and software is outlined. The architecture of the combined Galileo/GPS RF front-end is presented in low-IF topology. The digital baseband presents a highly parallel correlation architecture for combined Galileo/GPS reception, allowing fast times to fix for extended dwell times. Parallel digital signal processing combined with aiding data allows single-shot measurements particularly designed for LBSs. Differential correlation further improves the reception sensitivity. The coherently integrated predetection samples are thereby multiplied with the conjugated complex previous predetection samples. |
| Databáze: | OpenAIRE |
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