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Joint Optimization of Spectral Separation and Navigation Performance in GNSS Signal Design

Antreich, Felix and Nossek, Josef A. and Issler, Jean-Luc and Meurer, Michael (2009) Joint Optimization of Spectral Separation and Navigation Performance in GNSS Signal Design. ION. ION GNSS 2009, 22. - 25 September 2009, Savannah, U.S.A..

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In this work we present a systematic approach to design optimum chip pulse shapes for DS-CDMA systems which are strictly band-limited, whose energy is mainly concentrated in one chip duration, and that minimize the Cramer- Rao lower bound for time-delay estimation. The proposed methodology enables to formulate the problem of designing optimum chip pulse shapes in terms of achieving a trade-off between synchronization accuracy and acquisition and tracking robustness as an optimization problem. Additionally, spectral separation to non-interoperable signals in the same band is considered. This methodology uses the prolate spheroidal wave functions (PSWF) as basis functins in order to transform the primal variational problem into a dual, tractable parametric optimization problem. This work shows the interesting capabilities of the presented signal design approach for DS-CDMA systems. Further we show how two DS-CDMA signal components using optimized pulse shapes can be mapped/mulitplexed on one carrier frequency with low peak-to-average power ratio (PAPR). The presented approach is developed according to the needs of Galileo-2 signal design.

Item URL in elib:https://elib.dlr.de/60597/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:Joint Optimization of Spectral Separation and Navigation Performance in GNSS Signal Design
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Nossek, Josef A.Technische Universität München (TUM)UNSPECIFIED
Issler, Jean-LucCentre National d'Etudes Spatiales (CNES)UNSPECIFIED
Date:September 2009
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:Signal design, GNSS, chip pulse shape, CDMA, prolate sheroidal wave functions
Event Title:ION GNSS 2009
Event Location:Savannah, U.S.A.
Event Type:international Conference
Event Dates:22. - 25 September 2009
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W KN - Kommunikation/Navigation
DLR - Research area:Space
DLR - Program:W KN - Kommunikation/Navigation
DLR - Research theme (Project):W - Vorhaben GNSS2/Neue Dienste und Produkte (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation > Navigation
Deposited By: Antreich, Felix
Deposited On:09 Nov 2009 07:22
Last Modified:12 Dec 2013 20:44

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