Cross correlation mitigation techniques for software GPS C/A code receivers Glennon, Eamonn en_US Dempster, Andrew en_US 2021-11-25T15:18:44Z 2021-11-25T15:18:44Z 2007 en_US
dc.description.abstract The cross correlation properties of the 1023 chip Gold (C/A) codes can cause difficulties in scenarios where both strong and weak GPS signals need to be processed. Such cases are increasingly likely given the new applications of GPS, with examples being the processing of GPS signals in E911 cellular phone applications and the use of bistatic GPS as a remote sensing tool. This coupled with the increasing use of software-defined radio (software correlation) for either cost-saving or flexibility enhancing reasons have resulted in a need to mitigate cross correlations within such systems. This paper provides details on two techniques developed by the authors for the mitigation of GPS cross correlations, both of which have been tested and implemented within a software correlator that has been written in the C programming language. Details on the software correlator are also provided as the table lookup requirements for the correlator are smaller than those previously reported. Test results indicating the effectiveness of the algorithms are presented, with a comparison between the two methods being performed., The datasets containing cross correlations were obtained by capturing the output of a GPS radio front end chip attached to a hardware GPS simulator. en_US
dc.language English
dc.language.iso EN en_US
dc.publisher IGNSS Society 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 cross correlation mitigation en_US
dc.subject.other near-far problem en_US
dc.subject.other GPS C/A code en_US
dc.subject.other software defined radio en_US
dc.title Cross correlation mitigation techniques for software GPS C/A code receivers en_US
dc.type Conference Paper en
dcterms.accessRights open access
dspace.entity.type Publication en_US
unsw.identifier.doi Sydney en_US
unsw.relation.faculty Engineering
unsw.relation.ispartofconferenceLocation Sydney, Australia en_US
unsw.relation.ispartofconferenceName IGNSS2007 en_US
unsw.relation.ispartofconferenceProceedingsTitle Proceedings of IGNSS2007 en_US
unsw.relation.ispartofconferenceYear 2007 en_US
unsw.relation.originalPublicationAffiliation Glennon, Eamonn, Surveying & Spatial Information Systems, Faculty of Engineering, UNSW en_US
unsw.relation.originalPublicationAffiliation Dempster, Andrew, Surveying & Spatial Information Systems, Faculty of Engineering, UNSW en_US School of Civil and Environmental Engineering *
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