Download or read book Precision Measurement and Calibration Frequency and time B E Blair and A H Morgan editors written by United States. National Bureau of Standards and published by . This book was released on 1972 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Assessment of Precision Time and Time Interval Science and Technology written by National Research Council and published by National Academies Press. This book was released on 2002-11-04 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: Knowledge of time is essential to precise knowledge of location, and for this reason the Navy, with its need to navigate on the high seas, has historically played an important role in the development and application of advanced time realization and dissemination technologies. Discoveries coming from basic research funded by the Office of Naval Research (ONR) lie at the heart of today's highest performance atomic clocks, Naval Research Laboratory (NRL) expertise played a role in developing the space-qualified atomic clocks that enable the Global Positioning System (GPS), and the U.S. Naval Observatory (USNO) maintains and disseminates the standard of time for all of the Department of Defense (DOD). The Navy has made major investments in most aspects of precision time and time interval (PTTI) science and technology, although specific PTTI-related research has also been funded by the Defense Advanced Research Projects Agency (DARPA) and non-DOD agencies such as the National Science Foundation (NSF), the National Aeronautics and Space Administration (NASA), and the Department of Commerce. Navy funding, largely through ONR, has a history of being an early enabler of key new developments. Judicious funding decisions by the Navy-particularly by ONR program officers-have underpinned most of the major advances in PTTI science and technology (S&T) in the last 50 years. PTTI is important to modern naval needs, and indeed to all the armed Services, for use in both navigation and communications. Precise time synchronization is needed to efficiently determine the start of a code sequence in secure communications, to perform navigation, and to locate the position of signal emitters. Precise frequency control is required in communications for spectrum utilization and frequency-hopped spread-spectrum techniques. There are many examples of essential military operations that depend on PTTI and could benefit from improvements in PTTI technology. These include: -GPS clocks and autonomous operations, -Weapon system four-dimensional coordination, -GPS antijamming, -Network-centric warfare, and -Secure military communications. This report summarizes that reductions in the size, weight, and power requirements and increases in the ruggedness of PTTI devices without sacrificing performance would put more accurate and precise timekeeping in the hands of the warrior, improving capabilities in all of the above operations.

Download or read book 27th Annual Precise Time and Time Interval PTTI Applications and Planning Meeting written by and published by . This book was released on 1996 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Journal of Research written by United States. National Bureau of Standards and published by . This book was released on 1964 with total page 1354 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Journal of Research National Bureau of Standards written by United States. National Bureau of Standards and published by . This book was released on 1964 with total page 1400 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Naval Ship Systems Command Technical News written by and published by . This book was released on 1963 with total page 988 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bureau of Ships Journal written by and published by . This book was released on 1964 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Applications of Digital Signal Processing written by Christian Cuadrado-Laborde and published by BoD – Books on Demand. This book was released on 2011-11-23 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book the reader will find a collection of chapters authored/co-authored by a large number of experts around the world, covering the broad field of digital signal processing. This book intends to provide highlights of the current research in the digital signal processing area, showing the recent advances in this field. This work is mainly destined to researchers in the digital signal processing and related areas but it is also accessible to anyone with a scientific background desiring to have an up-to-date overview of this domain. Each chapter is self-contained and can be read independently of the others. These nineteenth chapters present methodological advances and recent applications of digital signal processing in various domains as communications, filtering, medicine, astronomy, and image processing.

Download or read book Bureau of Ships Journal written by United States. Navy Department. Bureau of Ships and published by . This book was released on 1963 with total page 936 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Official Gazette of the United States Patent Office written by United States. Patent Office and published by . This book was released on 1962 with total page 1484 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Computer Network Time Synchronization written by David L. Mills and published by CRC Press. This book was released on 2017-12-19 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carefully coordinated, reliable, and accurate time synchronization is vital to a wide spectrum of fields—from air and ground traffic control, to buying and selling goods and services, to TV network programming. Ill-gotten time could even lead to the unimaginable and cause DNS caches to expire, leaving the entire Internet to implode on the root servers. Written by the original developer of the Network Time Protocol (NTP), Computer Network Time Synchronization: The Network Time Protocol on Earth and in Space, Second Edition addresses the technological infrastructure of time dissemination, distribution, and synchronization—specifically the architecture, protocols, and algorithms of the NTP. This system has been active in one form or another for almost three decades on the Internet and numerous private networks on the nether side of firewalls. Just about everything today that can be connected to a network wire has support for NTP. This book: Describes the principal components of an NTP client and how it works with redundant servers and diverse network paths Provides an in-depth description of cryptographic and other critical algorithms Presents an overview of the engineering principles guiding network configuration Evaluating historic events that have taken place since computer network timekeeping started almost three decades ago, the author details a number of systems and drivers for current radio, satellites, and telephone modem dissemination and explains how we reckon the time, according to the stars and atoms. The original 16 chapters of the first edition have been rewritten, updated, and enhanced with new material. Four new chapters cover new algorithms and previously uncovered concepts, including timekeeping in space missions. Praise for the first edition: "... For those that need an exhaustive tome on all of the minutiae related to NTP and synchronization, this is the source. ... definitive ... this book should be considered the last word on the topic." —Ben Rothke on Slashdot.org "... the bible of the subject... contains enough information to take you just as far as you want to go....Dr. Mills is the original developer of NTP." —Books On-Line

Download or read book Proceedings etc2016 written by AMA Service GmbH and published by BoD – Books on Demand. This book was released on 2016-09-28 with total page 253 pages. Available in PDF, EPUB and Kindle. Book excerpt: For the second time the European Telemetry and Test Conference – etc2016 took place from 10 – 12 May 2016 in Nuremberg (Germany), in collaboration with the SENSOR+TEST 2016. Worldwide, there is no comparable platform to SENSOR+TEST / etc that offers such an intensive innovation dialog between suppliers of sensors, measuring and testing technology and users from all major industries. This cooperation provides in addition etc2016 exhibitors the opportunity to meet international customers from industry, science and research – from automotive industries, machinery constructions, electrical and energy industry, and of course aviation and space. The etc2016 spotlights the most recent innovations in methods, systems, and instrumentation from industry, researchers and laboratories all around the world. The European Telemetry and Test Conference offers original technical papers and innovation ideas in Test, Telemetry, Telecontrol, Instrumentation and Recording technologies for industrial, automotive, scientific, aerospace, space, naval and military applications.

Download or read book Proceedings of the Seventh Annual Precise Time and Time Interval PTTI Applications and Planning Meeting written by and published by . This book was released on 1977 with total page 738 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of the 21st International Conference on Industrial Engineering and Engineering Management 2014 written by Ershi Qi and published by Springer. This book was released on 2015-01-06 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt: Being the premier forum for the presentation of new advances and research results in the fields of Industrial Engineering, IEEM 2014 aims to provide a high-level international forum for experts, scholars and entrepreneurs at home and abroad to present the recent advances, new techniques and applications face and face, to promote discussion and interaction among academics, researchers and professionals to promote the developments and applications of the related theories and technologies in universities and enterprises and to establish business or research relations to find global partners for future collaboration in the field of Industrial Engineering. All the goals of the international conference are to fulfill the mission of the series conference which is to review, exchange, summarize and promote the latest achievements in the field of industrial engineering and engineering management over the past year and to propose prospects and vision for the further development.

Download or read book Frequency and Time written by B. E. Blair and published by . This book was released on 1972 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Annual Precise Time and Time Interval PTTI Applications and Planning Meeting written by and published by . This book was released on 1992 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book 24th Annual Precise Time and Time Interval PTTI Applications and Planning Meeting written by Richard L. Sydnor and published by . This book was released on 1993 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt: Papers covered: recent developments in rubidium, cesium, and hydrogen-based frequency standards, and in cryogenic and trapped-ion technology; international and transnational applications of PTTI technology with emphasis on satellite laser tracking networks, GLONASS timing, intercomparison of national time scales, and international telecommunications; applications of PTTI technology to the telecommunications, power distribution, and platform positioning, and geophysical survey industries; applications of PTTI technology to evolving military communications and navigation systems; and dissemination of precise time and frequency by means of GPS, GLONASS, MILSTAR, Loran, and synchronous communications satellites.