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Encyclopedia results for Global Positioning System
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Global Positioning System





Encyclopedia results for Global Positioning System

  1. Snooper (Global Positioning System)

    Star Diffuser Parking Sensor yes no no no no Snooper Evolution Speed Camera Detector System ... Sapphire small yes no no no no Snooper S270 GPS Speed Camera Detector System small yes yes no no no Snooper ... official site http snooperuk.com Cobra Electronics http cobra.com DEFAULTSORT Snooper Gps System ...   more details



  1. Error analysis for the Global Positioning System

    The analysis of errors computed using the Global Positioning System is important for understanding how GPS works, and for knowing what magnitude errors should be expected. The Global Positioning System makes corrections for receiver clock errors and other effects but there are still residual errors which are not corrected. The Global Positioning System GPS was created by the United States Department ... result&resnum 1&ct result PPA470,M1 Global Positioning System preview by Parkinson and Spiker Consider ... as shown in. ref cite web author esky url http en.wikipedia.org wiki Global Positioning System multi nr title Global Positioning System Wikipedia, the free encyclopedia publisher En.wikipedia.org ... Of Global Positioning System Selective Availability publisher DefenseLink date September ... http www.aticourses.com global positioning system.htm The Global Positioning System by Robert A. Nelson ... cite book url http books.google.com books?id lvI1a5J 4ewC title The global positioning system author ... year 2004 publisher Springer External links commons Global Positioning System http www.gps.gov ... Q left A T A right 1 math This computation is in accordance with Chapter 11 of The global positioning system by Parkinson and Spilker where the weighting matrix, P, has been set to the identity matrix ... Statement by the President regarding the United States Decision to Stop Degrading Global Positioning ... Notes reflist References cite book title Global positioning systems, inertial navigation ... Augmentation System s SBAS such as Wide Area Augmentation System WAAS available in North America and Hawaii , EGNOS Europe and Asia or Multi functional Satellite Augmentation System MSAS Japan , which ... lecturenotes unit1 unit1.html 3 title Unit 1 Introduction to GPS ref For very precise positioning ..., Down coordinate system a South, East, Up coordinate system or other convenient system. Formulate ... POSITIONING . The horizontal dilution of precision, math HDOP sqrt d x 2 d y 2 math , and the vertical ...   more details



  1. Positioning system

    A positioning system is a mechanism for determining the location of an object in space. Technologies for this task exist ranging from worldwide coverage with meter accuracy to workspace coverage with sub millimetre accuracy. Interplanetary systems Interplanetary radio communication system not only communicate with spacecraft, but are also used to determine their position. This can be done either using a transponder on board a spacecraft that echoes a radio signal back, or using radar . Orientation information can be obtained using star tracker s. Global systems Global navigation satellite system s GNSS allow specialized radio receivers to determine their 3 D space position, as well as time, with an accuracy of 2 20 metres or tens of nanoseconds. Currently deployed systems use microwave signals that can only be received reliably outdoors and that cover most of Earth s surface, as well as near Earth space. The existing and planned systems are Global Positioning System US military system, fully operational since 1995 GLONASS a partially completed Russian military system Galileo satellite navigation Galileo a planned European civilian system Regional systems Networks of land based positioning transmitter allow specialized radio receivers to determine their 2 D position on the surface of the Earth. They are generally less accurate than GNSS because the propagation of their signals is not entirely restricted to line of sight, and they have only regional coverage. However, they remain useful for special purposes and as a backup as some of their signals are more reliably to receive, including underground and in indoor environments, and receivers can be built that consume very low battery power. Examples of existing systems include Loran C Site wide systems Indoor positioning systems are optimized for use within individual rooms, buildings, or construction sites. They typically ... InterSense. See also Positioning technologies Navigation Dynamic positioning Local Positioning ...   more details



  1. Global Positioning Systems Wing

    Infobox military unit unit name Global Positioning Systems Wing image Image Global Positioning Systems Wing.png 200px caption Global Positioning Systems Wing emblem dates 1973 present country United States allegiance branch United States Air Force type role GPS service size 700 military & civilian command structure Air Force Space Command current commander Col. David Madden garrison Los Angeles AFB , California ceremonial chief colonel of the regiment nickname patron motto colors march mascot battles anniversaries The United States Air Force s Global Positioning Systems Wing is a unit of the Space and Missile Systems Center located at Los Angeles AFB , California . Mission To develop, produce and maintain the fleet of Global Positioning System satellites, their associated ground control equipment, and end user technologies. The day to day operations of the GPS network are handled by the 50th Space Wing . History Empty section date May 2010 Previous designations GPS Joint Program Office JPO 1973 2006 ref Rogers, B. 2006 . United States Air Force Unit Designations Since 1978. ISBN 1 85780 197 0 ref Global Positioning Systems Wing GPSW 2006 ref https gps.army.mil gps CustomContent gps PolicySynopsis26Sep07R.pdf ref Squadrons assigned Bases stationed Los Angeles AFB , California Aircraft & Missiles Operated ref World Airpower Journal. 1992 . US Air Force Air Power Directory. Aerospace Publishing London, UK. ISBN 1 880588 01 3 ref ??? Present References REFERENCES External links Portal United States Air Force http www.losangeles.af.mil library factsheets factsheet.asp?id 5311 GPSW Fact Sheet http www.insidegnss.com node 154 2007 July Interview with Col. David Madden USAF Space Command US Air Force navbox DEFAULTSORT Global Positioning Systems Category Military units and formations in California Category Space units of the United States Air Force Category Specialized wings of the United States Air Force USAF stub ja ...   more details



  1. Global network positioning

    Global network positioning is a coordinates based mechanism in a peer to peer network architecture which predicts Internet network distance i.e. round trip propagation and transmission delay . The mechanism is based on absolute coordinates computed from modeling the Internet as a geometric space. Since end hosts maintain their own coordinates, the approach allows end hosts to compute their inter host distances as soon as they discover each other. Moreover, coordinates are very efficient in summarizing inter host distances, making the approach very scalable . References T. S. Eugene Ng and Hui Zhang , Predicting Internet Network Distance with Coordinates Based Approaches , In IEEE INFOCOM, 2002. Demo of GNP algorithm, http adela.utko.feec.vutbr.cz projects global netwok positioning.html External links http www.net glyph.org chenyang nc archive.html a paper archive for Network Coordinate Research Category Internet compu network stub ...   more details



  1. Local positioning system

    Unlike Global Positioning System GPS or other global navigation satellite system s, which are positioning systems with a global coverage, local positioning systems don t use technology that has global coverage they use local technology or technology that has local coverage. Examples of this local technology include cellphone cellular base station s, Wi Fi access points used by the Skyhook Wireless system , and broadcast tower s. Local positioning systems or LPS are used as complementary and in some cases alternative positioning technology to GPS, especially in areas where GPS does not reach or is weak, for example, inside buildings, or urban canyon s. See also Indoor positioning system Hybrid positioning system Category Geolocation tech stub ...   more details



  1. Hybrid positioning system

    Hybrid positioning systems are systems for finding the location of a mobile device using several different positioning technologies . Usually GPS Global Positioning System is one major component of such systems, combined with cell tower signals, wireless internet signals, Bluetooth sensors or other local Positioning Systems . ref Innovation Hybrid Positioning http www.gpsworld.com gnss system algorithms methods innovation hybrid positioning 9628 ref ref Skyhook Wireless How it works. http www.skyhookwireless.com howitworks xps.php ref These systems are specifically designed to overcome the limitations of GPS, which is very exact in open areas, but works poorly indoors or between tall buildings the urban canyon effect . By comparison, cell tower signals are not hindered by buildings or bad weather, but usually provide less precise positioning. Wi Fi signals may give very exact positioning, but only in urban areas with high Wi Fi density and depend on a comprehensive database of Wi Fi access points. Hybrid positioning systems are increasingly being explored for certain civilian and commercial location based service s and location based media , which need to work well in urban areas in order to be commercially and practically viable. Different hybrid positioning systems are currently being developed and used in services from Navizon , Xtify , PlaceEngine , SkyHook ref Skyhook Wireless http www.skyhookwireless.com ref , Devicescape , Google Maps Google Maps for Mobile Google Maps for Mobile ref http www.google.com googleblogs pdfs google submission dpas wifi collection.pdf ref , http www.openBmap.org openBmap for application in smartphone s. The maturity of the approaches used by these systems needs to be proved in operational use. Early works in this area include the http www.placelab.org Place Lab project, which started on 2003 and went inactive in 2006. See also Positioning system Assisted GPS References Reflist Category Geolocation Category Satellite navigation systems ...   more details



  1. Underwater Acoustic Positioning System

    Mergefrom Long base line sonar date March 2009 An Underwater Acoustic Positioning System ref http www.dosits.org ... Underwater Acoustic Positioning Systems, P.H. Milne 1983, ISBN 0 87201 012 0 ref is a system for the tracking ... positioning system ref The ROV Manual, Robert D. Christ and Robert L. Wernli Sr 2007, pages 96 103, ISBN 978 0 7506 8148 3 ref , this is an example of a long baseline LBL positioning system for ROV Image LBL Acoustic Positioning Aquamap ROV.jpg thumb 300px left Figure 1 Method of the operation of a Long Baseline LBL acoustic positioning system for ROV Baseline station deployment and survey Acoustic positioning systems measure positions relative to a framework of baseline stations , which ... either local coordinates relative to each other or in Geographic coordinate system global coordinates ..., the acoustic positioning system is ready for operations. In the long baseline example see ... depends strongly on the type and model of the positioning system, its configuration for a particular ... Acoustic Positioning System Classes Underwater acoustic positioning systems are generally categorized ... 4.2.6 4.2.7 ref Long Baseline Acoustic Positioning System Long Baseline LBL Systems Long baseline .... Short Baseline Acoustic Positioning System Short Baseline SBL Systems Short baseline systems ... Mizar.jpg thumb 150px left Figure 2a An acoustic short baseline SBL positioning system was installed ... positioning system to the Thresher An early use of underwater acoustic positioning systems, credited ... I 52 in 1998. A LBL positioning system was used to guide and document the progressing search over multiple .... No gold was found, but the positioning system had documented the extend of the search. In recent ... dp2002 acoustics flexible davis.pdf Flexible Acoustic Positioning System Architecture, Davis ... underwater acoustic positioning system of the SBL type, designed to measure the opening geometry and area ... measurements, and subsequent position triangulation. Underwater Acoustic Positioning Systems are commonly ...   more details



  1. Indoor positioning system

    http aurmoth.blogspot.com 2008 01 indoor positioning system ips goes.html Indoor positioning system IPS , goes where GPS can t ref Other technologies Other approaches for positioning of pedestrians ... also Real time locating system RTLS Real time locating RTLS Local Positioning Systems DEFAULTSORT Indoor Positioning System Category Automatic identification and data capture Category Geolocation Category ...Indoor Positioning Systems IPS locate and track objects in buildings. All systems apply wireless concepts or optical tracking, some systems apply ultrasound. The located objects shall be tagged with labels, RFID tag tags , tokens or transponder s to enable locating or positioning. Examples of tagged objects include patients under care or equipment in a hospital. Special examples of discovered objects are people confined in burning buildings. ref http uk.reuters.com article topNews idUKL1263470020071212 New satellite navigation system may save firefighters ref Outdoor systems are of comparable design, however do not offer special features for indoor usage, for example detection under avalanches or cooperative locating of soldiers in open air on a battlefield. The design of some of the known systems of this type is functionally equivalent to RTLS or Real time locating system s according to ISO? IEC 19762 5 ans ISO IEC 24730 1. However, many designs just report the location of the active unit. Some of the systems do not change a position nor report a location of any other object but their own location. Some of the systems have no specified latency to provide a location report. For more detailed information on this topic refer to the main article on Real time locating system s. Global navigation satellite system s Global Positioning System GPS or GNSS are not suitable to establish indoor locations, since microwaves will be attenuated and scattered by roofs, walls and other objects ... Overview of current indoor positioning systems ref Range measurements can be carried out between wireless ...   more details



  1. Probe positioning system

    A probe positioning system is a tool for the positioning of a hand held measuring device, such as an ultrasound transducer in a fixed, predetermined place to the object, such as a patient. The operation of these systems varies from completely manual, to completely automated. In semi automated probe positioning systems, a control system corrects for the movement of the object or disturbances in the environment. These systems can use a tilt, pressure or other sensor carried by the probe to collect positional data. The positioner, such as a robotic arm is coupled to the probe. The positioner can provide roll and pitch control as well as translating the probe in lateral and longitudinal directions. A central processing unit processor receives signals from the sensors corresponding to the actual orientation of the probe and controls the positioner to adjust the orientation of the probe until the desired position is achieved. External links http www.patentstorm.us patents 7128711.html http www.wipo.int pctdb en wo.jsp?WO 2000 2F51511&IA WO2000 2F51511&DISPLAY CLAIMS http www.sintef.no content page1 4777.aspx Category Medical equipment ...   more details



  1. Wi-Fi Positioning System

    Wi Fi based positioning system WPS emerged as an idea that can solve the positioning in certain situations like indoors , taking advantage of the rapid growth of wireless access point s in urban areas. Skyhook Wireless is one provider of this type of service, maintaining a public database that can be accessed through an Application programming interface API , and get the position based on the access points are accessible from a terminal. Other providers include the Fraunhofer Institute ref J.Seitz, L. Pati o Studencka, B. Schindler, S. Haimerl, J. Guti rrez Boronat, S. Meyer, J. Thielecke. Sensor Data Fusion for Pedestrian Navigation UsingWLAN and INS ref or Google ref http www.google.com googleblogs pdfs google submission dpas wifi collection.pdf ref The localization technique used for positioning with wireless access points is based on measuring the intensity of the received signal Received Signal Strength in English RSS and the method of fingerprinting ref P. Bahl and V. N. Padmanabhan, RADAR an in building RF based user location and tracking system, in Proceedings of 19th Annual Joint Conference of the IEEE Computer and Communications Societies INFOCOM 00 , vol. 2, pp. 775 784, Tel Aviv.Israel, March 2000. ref ref Y. Chen and H. Kobayashi, Signal strength based indoor geolocation, in Proceedings of the IEEE International Conference on Communications ICC 02 , vol. 1, pp. 436 439, New York, NY, USA, April May 2002. ref . The accuracy depends on the number of positions that have been entered into the database. The possible signal fluctuations that may occur can increase errors and inaccuracies in the path of the user. To minimize fluctuations in the received signal, there are certain ... See also Hybrid positioning system Mobile phone tracking References Reflist refbegin Anthony LaMarca ... Device Positioning Using Radio Beacons in the Wild. In Pervasive 2005 Ekahau. http www.ekahau.com Qubulus. http www.qubulus.com Wireless LAN Positioning Technology for Cities and Buildings http www.awiloc.com ...   more details



  1. Long Baseline Acoustic Positioning System

    A Long Baseline LBL Acoustic Positioning System ref Underwater Acoustic Positioning Systems, Chapter 4, P.H. Milne 1983, ISBN 0 87201 012 0 ref is one of three broad classes of Underwater Acoustic Positioning System underwater acoustic positioning systems that are used to track underwater vehicles and divers ... Baseline Acoustic Positioning System Short Baseline Systems SBL . LBL systems are unique in that they use ... positioning systems does not suffice. Method of Operation and Performance Characteristics Figure 1 describes the general method of operation of a long baseline system. Image LBL Acoustic Positioning System Aquamap Diver.jpg thumb 450px left Figure 1 Method of the operation of a Long Baseline LBL acoustic positioning system Image AquaMap Diver LBL Acoustic Positioning Equipment.jpg thumb 200px right Figure 2 A dive team Envirotech Diving with their AquaMap LBL acoustic underwater positioning system ... positioning accuracy and position stability that is independent of water depth. It is generally better ... measured using the AquaMap system s automatic acoustic self survey capability. For geo referenced operations, the baseline positions are surveyed by differential GPS or a laser positioning equipment ... to a geo referenced coordinate system such as latitude longitude or UTM if the geo positions of the baseline ... for positioning, in which any given error in acoustic range measurements produce only about an equivalent .... Capabilities and Limitations of Acoustic Positioning, ISBN 978 0 7506 8148 3 ref . This compares to SBL ... eliminates the need for converting between reference frames, as is the case for USBL or SBL positioning ..., sea floor mounting makes the positioning accuracy independent of water depth. ref LBL Underwater Positioning, Hydro International Magazine, Jan Feb 2008, Volume 12, Number 1 ref For these reasons LBL systems are generally applied to tasks where the required standard of positioning accuracy or reliability ... baseline acoustic positioning systems. Covert networks of sea floor transponders could survive ...   more details



  1. Short Baseline Acoustic Positioning System

    A Short Baseline SBL Acoustic Positioning System ref Underwater Acoustic Positioning Systems, Chapter 3, P.H. Milne 1983, ISBN 0 87201 012 0 ref is one of three broad classes of Underwater Acoustic Positioning System underwater acoustic positioning systems that are used to track underwater vehicles and divers ... Baseline Acoustic Positioning System Long Baseline Systems LBL . Like USBL systems, SBL systems do ... is short , the SBL system will exhibit reduced precision. Method of Operation and Performance Characteristics Figure 1 describes the general method of operation of a short baseline system system. Image SBL Acoustic Positioning System PILOT.jpg thumb 300px left Figure 1 Method of the operation of a Short Baseline SBL acoustic positioning system for ROV Short baseline systems determine the position ... positioning system is combined with a GPS receiver and an electronic compass, both mounted on the boat ..., ISBN 047125293X, 9780471252931, page 462 ref As with any acoustic positioning system, a larger baseline yields better positioning accuracy. SBL systems use this concept to an advantage by adjusting ... applications. Perhaps the first implementation of any underwater acoustic positioning system .... Rather than tracking both vehicles with a positioning system from the surface which would ... Baseline Transducers PILOT.jpg thumb 300px right Figure 3 SBL positioning system deployment at Cape ..., which offer a fixed accuracy, SBL positioning accuracy improves with transducer spacing ref The ROV Manual, Section 4.2.7 Advantages and Disadvantages of Positioning Systems, Robert D. Christ and Robert ... from larger vessels or a dock, the SBL system can achieve a precision and position robustness that is similar to that of sea floor mounted LBL systems, making the system suitable for high accuracy ... position data from the SBL system to establish the position of the tracked target in earth ..., SBL systems can yield a positioning accuracy and robustness approaching that of sea floor mounted ...   more details



  1. Positioning

    Positioning may refer to Positioning marketing , creating an identity in the minds of a target market Critical literacy Positioning Positioning critical literacy , reader context Positioning telecommunications , a technology to approximate where a mobile phone temporarily resides Grappling position , the positioning and holds of combatants engaged in grappling Navigation , as in Global Positioning System See also Position disambiguation Locating Real time locating disambig pl pozycjonowanie ...   more details



  1. Global locating system

    Orphan date February 2009 unreferenced date March 2008 A Global Locating System GLS is any system that operates via satellite around the world. Basically it helps to determine a location on Earth s surface in longitude and latitude.In addition, most syetem imple,entations support tracking, the depiction of a track of sequentially determined locations. Commonly the terms locating GLS where is it? and positioning GPS where does it go to? are set equivalent. However the positioning task originates from the first military approaches on final locating, determining the cruise of a missile from launch to location of impact. Hence GLS refers to the surveying tasks and GPS refers to the navigating tasks. Other interpretations might neglect the etymologic background of the terms. An early example of GLS was the Sarsat Search and Rescue satellite system. In GLS, a minimal set of positioning data e.g. signal arrival time or frequency offset or doppler shift Doppler data is collected and relayed via a satellite link. Equipment installed in the satellite Ground station demodulates the data and computes the latitude and longitude of the remote transmitter. GLS is in use by Skybitz , Cospas Sarsat . and the Argos System . Category GPS Category Satellite ground stations technology stub ...   more details



  1. Global information system

    Definition There is a variety of definitions and understandings of a Global Information System GIS, GLIS , such as A global information system GLIS is an information system which is developed and or used in a global context. ref Pawlowski, J.M. Globale Informationssysteme Global Information Systems . In Kurbel .... ref A global information system GLIS is any information system which attempts to deliver the totality of measurable data worldwide within a defined context. Dr. Moira Gunn The term Global Information System has the same acronym, but the meaning is different from the term Geographic Information Systems . Common to this class of information systems is that the context is a global setting, either ..., Global, and Cross Cultural Teams, MC Press, US, 2006. ref Further important aspects are the internationalization and language localization of system components. Tasks in Global Information Systems Design Critical tasks in the design of Global Information Systems are Process and System Design ...? A variety of examples can be found basically, every multi lingual website can be seen as a global information system. However, mostly a GLIS is referred as a specific system developed or used in the global ... developed for multinational users, e.g., http www.sap.com SAP as a global ERP system Global Information Systems for Education http www.globe info.org The Global Learning Objects Brokered Exchange Support systems for global cooperation http www.ics.uci.edu asarma research.shtml Systems, e.g. ... AIS World References reflist 2 DEFAULTSORT Global Information System Category Information Systems ... computing where the distribution is global. The term also incorporates aspects of global software ... aspects. A specific aspect of global information systems is the case domain of global software development. ref Sangwan, R., Bass, M., Mullick, N., Paulish, D.J., Kazmeier, J. 2006 Global Software .... 1999 Global Software Teams Collaborating Across Borders and Time Zones High Performance Cluster Computing ...   more details



  1. Global Climate Observing System

    The Global Climate Observing System GCOS is an international institution co sponsored by the World Meteorological Organization WMO , the Intergovernmental Oceanographic Commission IOC of UNESCO , the United Nations Environment Programme UNEP , and the International Council for Science ICSU . GCOS is intended to be a long term, user driven operational system capable of providing the comprehensive observations required for monitoring the climate system, for detecting and attributing climate change, for assessing the impacts of climate variability and change, and for supporting research toward improved understanding, modelling and prediction of the climate system. It addresses the total climate system including physical, chemical and biological properties, and atmospheric, oceanic, hydrologic, cryospheric and terrestrial processes. The UN Framework Convention on Climate Change UNFCCC has strongly supported the need for systematic climate observations in the GCOS plan and in its recent Conference of the Parties 15 in Copenhagen in December 2009 urged nations to work towards addressing the priorities ... for a sustained global ocean observing system for climate in support of the goals of its ... of strategies for evaluation and evolution of the system and of its recommendations, and supports global ocean observing activities by interested parties through liaison and advocacy for the agreed observing plans. It is jointly sponsored by the Global Ocean Observing System GOOS of IOC. Terrestrial ... to develop a balanced and integrated system of in situ and satellite observations of the terrestrial ecosystem. It is jointly sponsored by GCOS and the Global Terrestrial Observing System GTOS of FAO ... Observing System Data on line Near realtime Argo float data, TAO El Nino data, Global Summary of the Day ... Meteorological institutions and stations Global Climate Observing System de Global Climate Observing System ...   more details



  1. System Global Area

    In the database management system s developed by the Oracle Corporation , the System Global Area SGA forms the part of the RAM shared by all the processes belonging to a single Oracle database instance. The SGA contains all information necessary for the instance operation. In general, the SGA consists of the following dictionary cache information about data dictionary table database table s, such as information about account, datafile, segment, extent, table and privileges redo log buffer containing information about committed transaction database transaction s that the database has not yet written to online redo log files the buffer cache or database buffer cache holds copies of data blocks read from datafiles ref http download.oracle.com docs cd B28359 01 server.111 b28318 memory.htm i10221 Memory Architecture in Oracle Database Concepts 11g Release 1 11.1 ref shared pool, the cache of parsing parse d commonly used SQL statements, and also the data dictionary cache containing tables, view database view s and trigger database trigger s Java pool, for parsing Java programming language Java statements. large pool including the User Global Area UGA See also Program Global Area PGA User Global Area UGA Further reading http www.oracle.com technology tech migration isv docs OracleArchitectureOverview.pdf PDF Oracle Architectural Components References reflist Category Oracle software database software stub de System Global Area ja pt System Global Area ru ...   more details



  1. Global Telecommunications System

    The Global Telecommunications System GTS is a global network for the transmission of meteorology meteorological data from weather station s, satellite s and numerical weather prediction centres. The GTS consists of an integrated network of point to point circuits, and multi point circuits which interconnect meteorological telecommunication centres. The circuits of the GTS are composed of a combination of terrestrial and satellite telecommunication links. They comprise point to point circuits, point to multi point circuits for data distribution, multi point to point circuits for data collection, as well as two way multi point circuits. Meteorological Telecommunication Centres are responsible for receiving data and relaying it selectively on GTS circuits. The GTS is organized on a three level basis The Main Telecommunication Network MTN The Regional Meteorological Telecommunication Networks RMTNs The National Meteorological Telecommunication Networks NMTNs Satellite based data collection and or data distribution systems are integrated in the GTS as an essential element of the global, regional and national levels of the GTS. Data collection systems operated via geostationary or near polar orbiting meteorological environmental satellites, including the Argos System , are widely used for the collection of observational data from data collection platforms. Marine data are also collected through the International Maritime Mobile Service and Inmarsat satellites. External links http www.wmo.int pages prog www TEM GTS index en.html Global Telecommunications System Category Meteorological data and networks climate stub es Global Telecommunications System ...   more details



  1. Global Forecast System

    climate and weather models eu Global Forecast System fr Global Forecast System hu GFS pl Global Forecast System ... and is available on the same time scales. This is variously referred to as a Global Ensemble Forecast System GEFS or GENS or the Medium Range Forecast MRF . Ensemble model output statistics are also available out to 8 days. This is the only global model for which all output is http www.arl.noaa.gov ...   more details



  1. Global language system

    Citations missing date May 2009 According to Netherlands Dutch sociologist Abram de Swaan , a sociological classification of language s based on large scale social role for their speakers ref Book description http www.polity.co.uk book.asp?ref 0745627471 Words of the World The Global Language System , by Abram De Swaan University of Amsterdam ref Peripheral languages the rest languages that no one considers worth learning except to improve one s own communication faculties. Central languages widely spoken languages Supercentral languages very widely spoken languages that serve as connectors between speakers of central languages according to de Swaan, there are twelve of these Arabic , Chinese language Chinese , English language English , French language French , German language German , Hindi , Japanese language Japanese , Malay language Malay , Portuguese language Portuguese , Russian language Russian , Spanish language Spanish and Swahili language Swahili Hypercentral languages connect supercentral languages de Swaan erects English language English to be the sole hypercentral language See also List of languages by number of native speakers References reflist Category Languages lang stub es Sistema ling stico global zh ...   more details



  1. Global Mobile Satellite System

    The Global Mobile Satellite System GMSS is a general term referring to the selection of satellite phone providers available to private customers. It is a term analogous to PLMN , referring to wireless telephony cellular carriers, and PSTN , referring to traditional Plain old telephone service wire based telephony . As of 2008, the allocated GMSS carriers are Iridium Satellite LLC Globalstar Ellipso a non operational service, with no satellites launched ICO Global Communications In 1996, the ITU introduced List of country calling codes country code 881 for direct international dialing of phones on a GMSS provider. Inmarsat had already been allocated country codes 870 874. The next digit following the country code is allocated two at a time to a particular GMSS carrier border cellpadding 3 style border 1px solid 808080 border collapse collapse Carrier GMSS codes ICO Global Communications ICO 881 0 br 881 1 Ellipso 881 2 br 881 3 spare 881 4 br 881 5 Iridium Satellite LLC Iridium 881 6 br 881 7 Globalstar 881 8 br 881 9 ref http www.itu.int ITU T inr forms files Applications E 164.pdf ITU T SG2 NCT E.164 country code 881 plus two 1 digit ICs ref Satellite numbers outside the GMSS country code Inmarsat is a satellite based communications provider, but it is primarily a maritime service and is not generally considered part of the GMSS. Globalstar usually allocates subscribers with a local number in the country they are based rather than using their GMSS country code. Iridium Communications Inc. Iridium also uses an Arizona based access number to call Iridium phones for those unwilling or unable to call the usually expensive GMSS number directly. Thuraya has been assigned 882 16 which is part of the 882 country code. references Category Satellite telephony ...   more details



  1. Wideband Global SATCOM system

    Now ref Mission The Wideband Global SATCOM WGS satellites are key elements of a system that increases ...Image Wideband Global SATCOM Satellite.jpg right thumb Artist s conception of a WGS satellite in orbit The Wideband Global SATCOM system sometimes called the Wideband Gapfiller Satellite system is a satellite communications system planned for use in partnership by the United States Department of Defense DoD and the Australian Department of Defence. ref http www.deagel.com news Australia Gets Access to Wideband Global SATCOM System n000003065.aspx ref The system is composed of the Space Segment satellites, the Terminal Segment users and the Control Segment operators. ref cite web url http www.afspc.af.mil library factsheets factsheet.asp?id 5582 title Wideband Global SATCOM Satellite publisher U.S. Air Force Space Command ref DoD wideband satellite communication services are currently provided by a combination of the existing Defense Satellite Communications System DSCS and Global Broadcast ... battle management and combat support information. WGS also augments the current Ka band Global Broadcast ... of the Wideband Global Satellites, DSCS satellites, GBS payloads, wideband payload and platform ... Wideband System IWS . Who date March 2009 It provides services to the US and Aus. Department of Defence. The IWS System supports continuous 24 hour per day wideband satellite services to tactical users ... jamming jamming . The combined wideband satellite communications system consists of space vehicles ... Global SATCOM WGS satellites will complement the DSCS III Service Life Enhancement Program SLEP ... Ka wideband system or Advanced Wideband System AWS , which has merged with Transformational Communications System TCS , in 2008 2009. The DSCS system will be replaced by six fully operational WGS satellites ... System publisher GlobalSecurity.org ref align right Image Payload Block Diagram.jpg center thumb Diagram ... equipment Category Telecommunications infrastructure de Wideband Global SATCOM ...   more details



  1. Global File System

    Infobox filesystem name GFS developer Red Hat formerly, Sistina Software full name Global File System ... set All except NULL Infobox filesystem name GFS2 developer Red Hat full name Global File System 2 ... , the Global File System GFS is a shared disk file system for Linux computer cluster s. GFS and GFS2 differ from distributed file system s such as Andrew File System AFS , Coda file system Coda , or InterMezzo file system InterMezzo because they allow all nodes to have direct concurrent access ... R last2 Erickson first2 Grant M last3 Preslan first3 Kenneth W title The Global File System A File System for Shared Disk Storage url http www.diku.dk undervisning 2003e 314 papers soltis97global.pdf ... System de Global File System fr Global File System it Global File System hu Global File System ja Global File System pl Global File System ... only , synchronous write, append only, immutable, exhash dirs only, read only file system permissions ... , synchronous write, append only, immutable, exhash dirs only, read only file system permissions ..., Inc. SGI s IRIX operating system, but in 1998 it was ported to Linux since the open source code ... operating system Fedora , Red Hat Enterprise Linux 5.3 and upwards and associated CentOS Linux distributions ... Graphics SGI IRIX only v3.0 Linux port v4 Journaling file system journaling v5 Redundant Lock Manager ... manner. For example The File locking In UNIX flock system call on GFS GFS2 is not interruptible by Signal computing signals . The File locking In UNIX fcntl F GETLK system call returns a PID of any ... node basis, and is also not recommended but it may become supported in the future Splice system call ... to cache data and Metadata File system metadata metadata which might be dirty , i.e. waiting for write back to the filesystem . In SH mode, the inode can cache data and Metadata File system metadata metadata , but it must not be dirty. In DF mode, the inode is allowed to cache Metadata File system ...   more details



  1. Global Command and Control System

    Global Command and Control System GCCS is a collection of Service oriented architecture SOA systems and applications which was developed to replace the Worldwide Military Command and Control System . Three major versions exist to address the United States Department of Defense DoD and NATO service component operational requirements for battlespace management Maritime for US Navy & Marine Corps , Army for US Army and Air Force , and Joint for interoperability with NATO partners . Applications GCCS systems expose web services which are used by many applications supporting combat operations, intelligence analysis and production, targeting, ground weapons and radar analysis, as well as terrain and weather analysis. Some next generation applications designed for GCCS may support collaboration using chat systems, newsgroups and email. Connectivity GCCS may use NIPRNet , SIPRNet , JWICS , or other Internet Protocol IP based networks for connectivity. In some installations, GCCS aggregates over 94 different sources of data. ref cite web url http www.govexec.com features 0606 01 0606 01s3.htm title Netcentric In a Snap accessdate 2008 07 06 ref Variants Air Force Theater Battle Management Core Systems Theater Battle Management Core Systems TBMCS Army Maritime Navy , Marine Corps , Coast Guard United States Joint Forces Command Joint Forces See also Worldwide Military Command and Control System References reflist Category Military communications Category Military equipment of the United States Category Command and control US mil stub Compu network stub ja GCCS ...   more details




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