Jitter analysis of QPSK and BOC(n,n) GNSS signals Amin, Bilal en_US 2021-11-25T13:50:32Z 2021-11-25T13:50:32Z 2007 en_US
dc.description.abstract This paper analyzes the effects of jitter on the GPS and Galileo navigation signals. Jitter effects have usually been modelled as additive noise, based on a sinusoidal input signal, and limits the achievable Signal-to-Noise Ratio (SNR). Analysis shows that psec-level jitter specifications are required in order to keep jitter noise well below the thermal noise for software radio satellite navigation receivers. However, analysis of a BPSK system shows that large errors occur if the jittered sample crosses a data bit boundary. Quadrature Phase Shift Keying (QPSK) modulation achieves greater bandwidth efficiency than BPSK. The new GPS L5 signal is QPSK modulated. The Binary Offset Carrier (BOC) spreading modulation has recently been recommended by GPS-GalileoWorking group on Interoperability and Compatibility for adoption by Europe's Galileo program for its Open Service (OS) signal at the L1 frequency and by the United Sates for its modernized GPS L1 Civil (L1C) signal. BOC signals have more transitions and hence jitter creates more woes. The aim of this paper is to derive expressions for noise due to jitter taking into account the transitions probability in QPSK and BOC systems. Both simulations and analysis are used to give a better understanding of jitter effects on Software Radio GNSS receivers. en_US
dc.language English
dc.language.iso EN en_US
dc.publisher U.S. Institute of Navigation en_US
dc.rights CC BY-NC-ND 3.0 en_US
dc.rights.uri en_US
dc.source Legacy MARC en_US
dc.subject.other GPS en_US
dc.subject.other GNSS en_US
dc.subject.other Galileo en_US
dc.subject.other BOC en_US
dc.title Jitter analysis of QPSK and BOC(n,n) GNSS signals en_US
dc.type Conference Paper en
dcterms.accessRights metadata only access
dspace.entity.type Publication en_US
unsw.accessRights.uri Virginia, USA en_US
unsw.relation.faculty Engineering
unsw.relation.ispartofconferenceLocation Fort Worth, USA en_US
unsw.relation.ispartofconferenceName 20th Int. Tech. Meeting of the Satellite Division of the U.S. Inst. of Navigation en_US
unsw.relation.ispartofconferenceProceedingsTitle Proceedings of ION-GNSS2007 en_US
unsw.relation.ispartofconferenceYear 2007 en_US
unsw.relation.ispartofpagefrompageto 1543-1548 en_US
unsw.relation.originalPublicationAffiliation Amin, Bilal, Surveying & Spatial Information Systems, Faculty of Engineering, UNSW en_US School of Civil and Environmental Engineering *
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