Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9659225 | AEU - International Journal of Electronics and Communications | 2005 | 10 Pages |
Abstract
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.
Related Topics
Physical Sciences and Engineering
Computer Science
Computer Networks and Communications
Authors
Andreas Schmid, André Neubauer, Henning Ehm, Robert Weigel, Norbert Lemke, Günter Heinrichs, Jón Winkel, Jose Angel Ávila-RodrÃguez, Roland Kaniuth, Thomas Pany, Bernd Eissfeller, Günter Rohmer, Matthias Overbeck,