Precision clock and time transfer on a wireless telecommunication link

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dc.contributor.authorMarins C.N.M.
dc.contributor.authorKaufmann P.
dc.contributor.authorFerreira Jr. A.A.
dc.contributor.authorLopes P.H.
dc.contributor.authorDe Paiva M.C.
dc.contributor.authorVilela R.M.
dc.contributor.authorDa Silveira A.C.
dc.date.accessioned2024-03-13T01:31:56Z
dc.date.available2024-03-13T01:31:56Z
dc.date.issued2010
dc.description.abstractPrecise time dissemination is a key requirement for remote clock synchronization used in coordinated command of distributed actuators in various applications. We present a newly conceived low-cost clock system based on the time-to-digital converter (TDC) principle to generate, transfer, and compare time-coded sequences (TCSs) with nanosecond accuracy using a wireless telecommunication link. The clock principle counts pulse sequences with nanosecond precision derived from a low-frequency oven-controlled crystal oscillator (OCXO) stable frequency standard. The TCSs are transmitted to a remote transponder that distributes them to receiving stations, where the clock readings are processed. A simple short-range wireless telecommunication link was assembled to demonstrate the system. The repeated TCSs are received back and compared with the reference clock. We describe the clock, the telecommunication setup, and the electrical and electronic sources of delays. Comparison of mean TCSs taken every 0.629 s provided a time-domain midterm stability Allan deviation of about 1.3 × 10-11 at r = 103 s. These results show the feasibility of a low-cost GPS-independent technique, exhibiting highly performing time-domain midterm stability. This system is a key requirement for a new proposed system for geopositioning. © 2009 IEEE.
dc.description.firstpage512
dc.description.issuenumber3
dc.description.lastpage518
dc.description.volume59
dc.identifier.doi10.1109/TIM.2009.2023103
dc.identifier.issn0018-9456
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/37207
dc.relation.ispartofIEEE Transactions on Instrumentation and Measurement
dc.rightsAcesso Restrito
dc.subject.otherlanguageClock synchronization
dc.subject.otherlanguageRadio ranging
dc.subject.otherlanguageTime dissemination
dc.subject.otherlanguageTime measurements
dc.subject.otherlanguageTiming circuits
dc.titlePrecision clock and time transfer on a wireless telecommunication link
dc.typeArtigo
local.scopus.citations7
local.scopus.eid2-s2.0-76849104779
local.scopus.subjectAllan deviation
local.scopus.subjectClock synchronization
local.scopus.subjectClock systems
local.scopus.subjectDistributed actuators
local.scopus.subjectGeo-positioning
local.scopus.subjectLow frequency
local.scopus.subjectPulse sequence
local.scopus.subjectReceiving stations
local.scopus.subjectReference clock
local.scopus.subjectStable frequencies
local.scopus.subjectTime dissemination
local.scopus.subjectTime domain
local.scopus.subjectTime to digital converters
local.scopus.subjectTime transfer
local.scopus.subjectWireless telecommunications
local.scopus.updated2024-05-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=76849104779&origin=inward
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