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Phase error reduction method for free-run QZSS clock
Phase error reduction method for free-run QZSS clock
dc.contributor.author | Tappero, F | en_US |
dc.contributor.author | Dempster, A.G | en_US |
dc.contributor.author | Iwata, T. | en_US |
dc.date.accessioned | 2021-11-25T15:19:31Z | |
dc.date.available | 2021-11-25T15:19:31Z | |
dc.date.issued | 2007 | en_US |
dc.description.abstract | A method for limiting the phase error of the remote time keeping system, RTKS, clock for the Japanese quasi-zenith satellite system (QZSS), is presented. To provide a proper positioning signal, QZSS satellites need stable on-board time references. Instead of using atomic references, the recently proposed RTKS employs a remote synchronization scheme that provides an opportune synchronization/correction signal able to keep a master time reference, located on the ground, and the QZSS satellite on-board time reference constantly in lock step. One of the critic issues regarding this architecture is the loss of synchronization due to satellite communication interruption. The proposed method consists of a learning algorithm that monitors the on-board clock behavior during its regular functioning. Consequently, when synchronization becomes unavailable the QZSS onboard clock phase/frequency drift is kept contained by using a consecutive estimation of the clock phase error. The proposed system is particularly suitable for the RTKS for QZSS and is characterized by a low hardware requirement profile, particularly suitable for the RTKS satellite payload. | en_US |
dc.identifier.uri | http://hdl.handle.net/1959.4/44328 | |
dc.language | English | |
dc.language.iso | EN | en_US |
dc.publisher | IEEE | en_US |
dc.rights | CC BY-NC-ND 3.0 | en_US |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/3.0/au/ | en_US |
dc.source | Legacy MARC | en_US |
dc.title | Phase error reduction method for free-run QZSS clock | en_US |
dc.type | Conference Paper | en |
dcterms.accessRights | open access | |
dspace.entity.type | Publication | en_US |
unsw.accessRights.uri | https://purl.org/coar/access_right/c_abf2 | |
unsw.description.publisherStatement | ©2007 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. | en_US |
unsw.identifier.doiPublisher | http://dx.doi.org/10.1109/FREQ.2007.4319129 | en_US |
unsw.publisher.place | Piscataway | en_US |
unsw.relation.faculty | Engineering | |
unsw.relation.ispartofconferenceLocation | Geneva | en_US |
unsw.relation.ispartofconferenceName | IEEE Int. Frequency Control Symp. TimeNav07 | en_US |
unsw.relation.ispartofconferenceProceedingsTitle | IEEE Int. Frequency Control Symp. TimeNav07 | en_US |
unsw.relation.ispartofconferenceYear | 2007 | en_US |
unsw.relation.ispartofpagefrompageto | 529-534 | en_US |
unsw.relation.originalPublicationAffiliation | Tappero, F, Surveying & Spatial Information Systems, Faculty of Engineering, UNSW | en_US |
unsw.relation.originalPublicationAffiliation | Dempster, A.G, Surveying & Spatial Information Systems, Faculty of Engineering, UNSW | en_US |
unsw.relation.originalPublicationAffiliation | Iwata, T. | en_US |
unsw.relation.school | School of Civil and Environmental Engineering | * |
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