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Topic Area: Time and Frequency
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Displaying records 31 to 40 of 60 records.
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31. NIST Time and Frequency Broadcasts from Radio Stations WWVB, WWV, and WWVH
Topic: Time and Frequency
Published: 1/1/2001
Authors: Matthew J Deutch, E Farrow, John P Lowe, Glenn K Nelson, Dean T Okayama, D Patterson, Douglas D Sutton, William C Yates
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=105183

32. NIST Time and Frequency Bulletin
Series: NIST Interagency/Internal Report (NISTIR)
Topic: Time and Frequency
Published: 1/5/2010
Author: Eyvon Petty
Abstract: The Time and Frequency Bulletin provides information on performance of time scales and a variety of broadcasts (and related information) to users of the NIST services)
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904643

33. NIST Time and Frequency Bulletin
Series: NIST Interagency/Internal Report (NISTIR)
Topic: Time and Frequency
Published: 1/5/2011
Author: Petrina C Potts
Abstract: The Time and Frequency Bulletin provides informaiton on performance of time scales and a variety of broadcasts (and related information) to users of the NIST services.
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907621

34. NIST Time and Frequency Services
Series: Special Publication (NIST SP)
Report Number: 432
Topic: Time and Frequency
Published: 1/1/2002
Author: Michael A Lombardi
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=105432

35. Novel, All-Digital Phase Measurement System for Time Scales
Topic: Time and Frequency
Published: 11/16/2009
Authors: Stefania Romisch, Thomas Edward Parker, Steven R Jefferts
Abstract: A novel, all-digital phase measurement system, to be utilized as part of the NIST Time Scale at NIST in Boulder, CO is presented. The system is used to compare output signals from several commercial atomic frequency standards: the phase differences ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904665

36. On-Board GPS Clock Monitoring for Signal Integrity
Topic: Time and Frequency
Published: 11/15/2010
Authors: Marc A Weiss, Pradipta Shome, Ron Beard
Abstract: Navigation signal integrity is paramount for aviation and safety of life services. Hitherto GPS signal anomaly alerting has been provided primarily by ground based augmentations. Significantly improved navigation signal integrity and quality may be ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907478

37. On-Board Signal Integrity for GPS
Topic: Time and Frequency
Published: 9/21/2010
Authors: Marc A Weiss, Pradipta Shome, Ron Beard
Abstract: The elements of a space-based integrity approach are to monitor the signals on-board the satellite, such that signal performance can be maintained well within desired integrity limits. These elements include 1) a system for monitoring multiple atomi ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906614

38. Optical frequency stabilization of a 10 GHz Ti:sapphire frequency comb by saturated absorption spectroscopy in 87Rubidium
Topic: Time and Frequency
Published: 11/4/2009
Authors: Dirk Heinecke, Albrecht Bartels, Tara Michele Fortier, Danielle Braje, Leo Hollberg, Scott A Diddams
Abstract: The high power per mode of a recently-developed 10 GHz femtosecond Ti:sapphire frequency comb permits nonlinear Doppler-free saturation spectroscopy in 87Rubidium with a single mode of the comb. We use this access to the natural linewidth of the Rub ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903059

39. Optical phase noise from atmospheric fluctuations and its impact on optical time-frequency transfer
Topic: Time and Frequency
Published: 2/5/2014
Authors: Laura C Sinclair, Fabrizio Raphael Giorgetta, William C Swann, Esther Baumann, Ian R Coddington, Nathan Reynolds Newbury
Abstract: The time of flight for a laser beam through the atmosphere will fluctuate as the path-averaged index of refraction varies with atmospheric turbulence, air temperature, and pressure. We measure these fluctuations by transmitting optical pulses fro ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915083

40. Optical two-way time and frequency transfer over free space
Topic: Time and Frequency
Published: 4/28/2013
Authors: Fabrizio Raphael Giorgetta, William C Swann, Laura C Sinclair, Esther Baumann, Ian R Coddington, Nathan Reynolds Newbury
Abstract: The transfer of high-quality time-frequency signals between remote locations underpins many applications, including precision navigation and timing, clock-based geodesy, long-baseline interferometry, coherent radar arrays, tests of general relati ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912449



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