Take a sneak peek at the new NIST.gov and let us know what you think!
(Please note: some content may not be complete on the beta site.).

View the beta site
NIST logo

Publication Citation: A new algorithm for clock weights for the SIM time scale

NIST Authors in Bold

Author(s): Michael A. Lombardi; J. Mauricio Lopez-Romero; Nelida Diaz-Munoz; E. de Carlos-Lopez;
Title: A new algorithm for clock weights for the SIM time scale
Published: May 24, 2012
Abstract: A time and frequency comparison system has been developed for the Sistema Interamericano de Metrologia (SIM) region in order to compare in real time the time references maintained at the SIM national metrology institutes (NMIs). Since January 2010 a regional time scale (SIMT) is computed every hour and its values are disseminated in near real time by the Internet. The SIMT has proved to be a very helpful reference to monitor performance of the UTC(k) and SIMT(k) scales at the SIM region. In this paper we discuss the new algorithm for weights on the SIMT computation where an accuracy factor is introduced in order to limit the participation of SIMT(k) scales proportionally to the inverse of its frequency differences with respect to the SIMT.
Proceedings: 2012 Proceedings Simposio de Metrología, Querétaro, México
Pages: pp. 1 - 3
Location: Queretaro, -1
Dates: October 8-12, 2012
Keywords: time,time scales,time transfer
Research Areas: Physics