Rubidium Atomic Clock For Galileo
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Rubidium Atomic Clock For Galileo
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Author :
language : en
Publisher:
Release Date : 1999
Rubidium Atomic Clock For Galileo written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with categories.
The overall performance of navigation payloads is dependent on the performance of the on-board clocks. Better stability leads directly to improved space segment autonomy and simplified ground segment operation. The European Space Agency supports the development of advanced atomic clocks in the frame of its Technology Demonstration Program and more recently under the GNSS-2 program. Two major activities are currently running with the aim fully space-qualifying a Rubidium Atomic Frequency Standard (RAFS) and a Space Hydrogen Maser (SHM). The development activity for the Rubidium clocks is driven by the following major design goals: * Mass
Papers Relating To Herbert Cooper
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Author :
language : en
Publisher:
Release Date : 1910
Papers Relating To Herbert Cooper written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1910 with British categories.
Rubidium Atomic Clock The Workhorse Of Satellite Navigation
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Author : G M Saxena
language : en
Publisher: World Scientific
Release Date : 2020-03-05
Rubidium Atomic Clock The Workhorse Of Satellite Navigation written by G M Saxena and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-03-05 with Science categories.
The Rubidium atomic clock (Rb) is the workhorse of the satellite navigation systems of which GPS is now a household name. With just the tap of a few keys, drivers and navigators all over the world are able to reach their destination effortlessly with high precision. People are now curious to know what makes this possible. Hence, the need to explain in simplistic terms the Rb atomic clocks that are onboard these satellite navigation systems because no good satellite navigation system is possible without such clocks.But why only Rb atomic clocks when far better and exotic atomic clocks are available? The reasons are as simple as that they are slim, low in weight, easy to build inexpensively. They are also used in numerous military applications such as secure communications, electronic warfare, command and control, telemetry and navigation. Besides, they are used in the measurements of the variation in fine-structure constant, test of relativity, precise spectroscopy and scientific research.This book details the history of time keeping and the chronological development of the Rb atomic clocks, with special focus on the physics Package that accounts for the actual performance of the clock. Researchers and industrialists will find that producing such clocks is relatively simple and inexpensive.
Rubidium Atomic Clock
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Author : BIKASH. SAXENA GHOSAL (G M.)
language : en
Publisher:
Release Date : 2019
Rubidium Atomic Clock written by BIKASH. SAXENA GHOSAL (G M.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with Artificial satellites in navigation categories.
A Space Rubidium Pulsed Optical Pumped Clock Current Status Results And Future Activities
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Author :
language : en
Publisher:
Release Date : 2009
A Space Rubidium Pulsed Optical Pumped Clock Current Status Results And Future Activities written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with categories.
Since the year 2000, Selex Galileo activity on Space Frequency Standards has been pursuing the development of a Passive Hydrogen Maser (PHM), presently the primary clock of the Galileo Navigation Constellation. A consortium has been established in 2007 with one of the best scientific laboratories in the European Time-Frequency community: the Istituto Nazionale di Ricerca Metrologica - INRiM (I) in order to demonstrate that the POP technique is suitable for space applications. The name of the project, Maser POP, comes from a very promising technique studied and refined by INRiM in order to achieve performance close to that of a passive hydrogen maser, but with dimensions and power consumption closer to a rubidium clock. Under an Italian Space Agency ASI contract, a feasibility study has been completed in 2008 concerning the manufacture of a clock breadboard and the preliminary design of the three units composing the clock: Space Physics Unit, Optical Unit, and Electronic Unit. This paper summarizes the outcome of this study in terms of Breadboard (BB) results (where a frequency stability on the order of 1.2x10( -12)tau( -0.5) has been measured) and the critical areas that shall be correctly addressed for the project objective's full achievement. The development plan of the Maser POP is presented together with an overview of expected characteristics, in terms of mass and power consumption, realistically optimized taking into account the needs of the space market. A preliminary schedule is also presented concerning future activities aiming at the development of an Engineering Model (EM). This plan includes the qualification of the clock against the Galileo environmental requirements. Also, these further activities will be supported by the Italian Space Agency (ASI) in the frame of the Space Atomic Clock Development program.
Beidou Rubidium Atomic Clock
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Author : Aerospace Corporation
language : en
Publisher:
Release Date : 2016
Beidou Rubidium Atomic Clock written by Aerospace Corporation and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with Atomic clocks categories.
Light Shifts Of An Integrated Filter Cell Rubidium Atomic Clock
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Author :
language : en
Publisher:
Release Date : 2015
Light Shifts Of An Integrated Filter Cell Rubidium Atomic Clock written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with Astronomical clocks categories.
Performance Of New Gnss Satellite Clocks
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Author : Gonzalez Martinez, Francisco Javier
language : en
Publisher: KIT Scientific Publishing
Release Date : 2013-12-24
Performance Of New Gnss Satellite Clocks written by Gonzalez Martinez, Francisco Javier and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-12-24 with Science categories.
In Global Navigation Satellite Systems (GNSS), the on-board clocks are a key component from which timing and navigation signals are generated. This thesis reviews the performance of the first Passive Hydrogen Maser (PHM) launched by the Galileo system in 2008; and demonstrates how the new PHM can be consider as the best clock in space, pushing the physical clock error contribution below the noise floor of geodetic time transfer capabilities. Furthermore, overall GNSS clock peformance is reviewed
Sensitivity Of A Rubidium Atomic Clock To Power Supply Voltage Variations
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Author : James C. Camparo
language : en
Publisher:
Release Date : 2007
Sensitivity Of A Rubidium Atomic Clock To Power Supply Voltage Variations written by James C. Camparo and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Atomic clocks categories.
Geometrical Theory Of Satellite Orbits And Gravity Field
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Author : Drazen Svehla
language : en
Publisher: Springer
Release Date : 2018-07-02
Geometrical Theory Of Satellite Orbits And Gravity Field written by Drazen Svehla and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-07-02 with Science categories.
This book on space geodesy presents pioneering geometrical approaches in the modelling of satellite orbits and gravity field of the Earth, based on the gravity field missions CHAMP, GRACE and GOCE in the LEO orbit. Geometrical approach is also extended to precise positioning in space using multi-GNSS constellations and space geodesy techniques in the realization of the terrestrial and celestial reference frame of the Earth. This book addresses major new developments that were taking place in space geodesy in the last decade, namely the availability of GPS receivers onboard LEO satellites, the multitude of the new GNSS satellite navigation systems, the huge improvement in the accuracy of satellite clocks and the revolution in the determination of the Earth's gravity field with dedicated satellite missions.