Спутник аварийного спасения. MEOSAR. [Редактировать]

Новостная лента[Найти информацию в новостях] [Найти информацию в документах]

#Новостная лента.
12015-08-03. Правительство Канады решило продолжить работы над системой MEOSAR.
После задержек из-за опасений по поводу финансирования, канадское правительство все таки решило продолжить работы по проекту связанному с разработкой и строительством системы ретрансляции аварийных сигналов. В рамках проект планируется разметить ретрансляторы на спутниках GPS и отдельном среднеорбитальном космическом аппарате MEOSAR. В систему также будут входить три наземные станции приема-передачи информации. В целом данный проект уже рассматривался правительством Канады, однако ранее, он был приостановлен из-за вероятности отсутствия в бюджете страны денежных средств на его реализацию(как ожидается проект MEOSAR будет стоить от $100 до $249 млн.).Тэги: MEOSARКанадаВоенно-воздушные силы СШАНавигационная система США

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1Стоимость , млн. долл.100-240

Найдено 66 документов по запросу «MEOSAR». [Перейти к поиску]


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MEOSAR Overview SAR Controllers Training 2016 1 – 3 ... CRC-MEOSAR-FEB08 PRESENT LEOSAR SYSTEM TWO MODES OF OPERATION CRC-MEOSAR... Geostationary Orbit 36,000 km MEOSAR: AN IMPROVED SYSTEM CONCEPT MEO... poles) LEOSAR vs. GEOSAR vs. MEOSAR  LEOSAR  Small footprint  Limited satellites... blockages  No independent location capability  MEOSAR  Large footprint  Coverage at the... be achieved on a single burst MEOSAR – INDEPENDENT LOCATION Similar to standard..., or a DOA MEOSAR – INDEPENDENT LOCATION (cont.)  A major advantage of MEOSAR is that... that beacon could be moving MEOSAR – INDEPENDENT LOCATION (cont.)  Each MEOLUT...% < 10 km, within 10 minutes MEOSAR – INDEPENDENT LOCATION (cont.) There are... can affect the accuracy of a MEOSAR independent location, but the most... as the characteristics of some MEOSAR repeaters MEOLUT NETWORKING  MEOLUT Networking... enhance the performance of the MEOSAR system, specifically helping to compensate... MCC #2 Alert Data RCCs/SPOCs MEOSAR CAPABLE and LGM MCCs  As... to perform effectively and efficiently A MEOSAR Capable MCC operates in an... MEOLUTs (e.g., Hawaii, Florida) and other MEOSAR Capable MCCs, and performs functions... a LEOSAR/GEOSAR MCC to distribute MEOSAR data to other MCCs, RCCs... in the USA, a LEOSAR/GEOSAR/MEOSAR (LGM) MCC receives data from... information to SAR A few differences MEOSAR data introduces relative to LEOSAR... for position confirmation STATUS OF MEOSAR - INTERNATIONALLY  The concept began in... earnest around 2005 with the C/S MEOSAR Implementation Plan  A critical first step... under way  In 2010 the MEOSAR Demonstration and Evaluation (D&E) Plan (C/S R.018... now account for or include MEOSAR FUTURE MEOSAR SYSTEM FLEET Three Global... / Russia Galileo / Europe STATUS OF MEOSAR - USA  NASA has an experimental...) was completed in 2014 The MEOSAR Capable MCC started operating in... in the MEOSAR D&E  While there were plans to start distributing MEOSAR alert...



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MEOSAR Overview SAR Controllers Training 2014 ... Agenda • • • • • • MEOSAR/DASS Overview Space Segment Ground Segment DASS POC MEOSAR Timeline Demonstration and Evaluation 3/5/2014 2 MEOSAR/DASS Overview 3/5/2014 3 MEOSAR/DASS Overview • MEOSAR... in reverse 3/5/2014 SAR Aircraft - 4 MEOSAR/DASS Overview • Medium Earth Orbit...– Distress Alerting Satellite System (DASS) • MEOSAR provides – – – – – – 3/5/2014 A combination of the... vs. LEO Coverage 3/5/2014 6 US MEOSAR Ground Segment Design 3/5/2014 7 Ground... operational MEOLUT – Full participation in MEOSAR D&E testing 3/5/2014 8 Ground Segment • Accepted... to have 24 US MEOSAR instruments • 72 MEOSAR instruments total 3/5/2014 12..., Navigation & Timing Policy – S&R on GPS MEOSAR Transition 2011 2012 2013 2014... 2019 2020 Second Generation Beacons MEOSAR Ground System Development MESOAR D&E Pre... SAR/GPS US MEOSAR Timeline • 2011 – planning for MEOSAR D&E testing; • 2012 – participant ground segment preparation for D&E testing; • 2013 – Phase I MEOSAR D&E technical testing; • 2014 – Phase II MEOSAR D&E operational and technical testing; • 2015 – Phase III MEOSAR D&E L-band... of final D&E report. 3/5/2014 15 MEOSAR Demonstration and Evaluation (D&E) • Goals – Characterize... of MEOSAR system into C/S • Basis for commissioning criteria 3/5/2014 16 MEOSAR Demonstration... MEO/GEO performance 3/5/2014 17 MEOSAR Demonstration and Evaluation (D&E) • Operational Tests... – Direct and indirect benefits of MEOSAR system – Validate Data distribution procedures...



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MEOSAR Overview SAR Controllers Training 2013 19 – 21 March 2013 Mickey Fitzmaurice NOAA Space Segment Engineer Agenda • • • • • • • MEOSAR/DASS Overview Space Segment Ground Segment DASS POC MEOSAR Timeline Demonstration and Evaluation 2nd Generation Beacons 4/2/2013 2 MEOSAR/DASS Overview 4/2/2013 3 MEOSAR/DASS Overview • MEOSAR/DASS Concept – Utilize multiple satellites with SAR repeaters, or “bent pipe” – Multiple antennas are used to receive the same beacon burst – The time difference of arrival (TDOA) and frequency difference of arrival (FDOA) is then used to determine location – One burst, received through 3 unique satellites, is capable of producing a location – Essentially, GPS location in reverse 4/2/2013 SAR Aircraft - 4 MEOSAR/DASS Overview • Medium Earth Orbit (MEO) SAR / Distress Alerting Satellite System (DASS) – Various studies determined that medium-earth orbiting (MEO) satellites provide a vastly improved space-based distress alerting and locating system. – NASA, with USAF Space and Air Combat Command, NOAA, and USCG are developing a capability on GPS satellites– Distress Alerting Satellite System (DASS) • MEOSAR provides – – – – – – 4/2/2013 A combination of the best assets of GEOSAR and LEOSAR Near instantaneous notification and location of distress Near 100% Availability Better location accuracy Global coverage Full compatibility with current and future beacons 5 Space Segment • Repeaters will be flown on Medium Earth Orbit satellites (MEOSATs) • Will utilize 3 Global Navigation Satellite System (GNSS) constellations – GPS (USA) – GLONASS (Russia) – Galileo (ESA) • Current plan is to have 24 US MEOSAR instruments • 72 MEOSAR instruments total 4/2/2013 6 MEO vs. LEO Coverage 4/2/2013 7 US MEOSAR Ground Segment Design 4/2/2013 8 Ground Segment • Prototype ground station at NASA Goddard Space Flight Center – 4 antennas – capable of independently tracking 4 satellites – Completed in 2008 – Successfully passed acceptance testing – May become future operational MEOLUT – Full participation in MEOSAR D&E testing 4/2/2013 9 Ground Segment • Accepted MEOLUT Wahiawa, Hawaii – 6 antenna – capable of tracking 6 satellites either S-band or L-band – Constructed in September 2011 and passed acceptance testing • Proposed MEOLUT in Miami, Florida – 6 antenna – capable of tracking 6 satellites either S-band or L-band – Procurement will be released by Sept 2012 – Construction will begin Sept 2013, completed by Dec 2013 4/2/2013 10 DASS Proof-of-Concept • DASS Proof-of-Concept (POC) Space Segment – Ten current on-orbit GPS Block IIR and IIF satellites carry DASS repeaters – POC system uses existing GPS. Downlink at S-Band (Not ITU-allocated for SAR, but may possibly be used operationally) • Proof-of-Concept results to date: – Demonstrated ability to locate beacons to greater than current Cospas-Sarsat accuracy using two or more satellites – System meets/exceeds theoretical capabilities – Tests are on-going 4/2/2013 11 MEOSAR Timeline 4/2/2013 12 US MEOSAR Timeline • Phase I – Installation of Hawaii MEOLUT • Phase II – Networking of Data • Phase III – MEOSAR D&E 4/2/2013 13 MEOSAR Demonstration and Evaluation (D&E) • Goals – Characterize technical and operational performance – Evaluate operational effectiveness – Provide basis for recommendations on the integration of MEOSAR system into C/S • Basis for commissioning criteria 4/2/2013 14 MEOSAR Demonstration and Evaluation (D&E) • Technical tests – Processing threshold and system margin – Impact of interference – Valid and complete message acquisition – Location accuracy – System Capacity – Networked MEOLUT advantage – Combined MEO/GEO performance 4/2/2013 15 MEOSAR Demonstration and Evaluation (D&E) • Operational Tests – Time advantage – Unique detections – Volume of ground segment traffic – SAR/Galileo RLS – Direct and indirect benefits of MEOSAR system 4/2/2013 16 Second Generation Beacons • Compatible with Cospas-Sarsat System • Minimum Requirement Improvements – – – – Independent location accuracy First burst transmission timeliness [3] seconds Increased performance in first 30 seconds Cancellation function • Objective Requirement Improvements – Better encoded location • 30 m, 95% of the time within 5 minutes of activation – Return Link Service (RLS) – Additional data encoded in beacon message – Automatic ELT activation on indication of emergency 4/2/2013 17



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MEOSAR & GPS ICG WGWG-B Vienna Austria, June 2016 Dr. Lisa Mazzuca, Mission Manager NASA Search and Rescue Office Goddard Space Flight Center 1 Overview • • • • • • • Cospas-Sarsat System GNSS-enabled Medium Earth Orbit SAR (MEOSAR) MEOSAR launch schedule SAR GPS payload MEOSAR ground coverage MEOSAR operational capability phases Current status 2 MEOSAR: CONCEPT OF OPERATIONS SAR/GPS Search and RescueRescueGlobal Positioning Satellite System Global Search and Rescue System 3 M E O S A R : N E X T G E N E R AT I O N O F S AT E L L I T E - A I D E D S A R • • For USA, based on the use of SAR Repeaters carried onboard GPS Benefits… – Multiple satellites in view of the beacon anywhere in the world at all times – Advanced location process using time and frequency measurements of beacon signal to triangulate its location • Near instantaneous beacon detection and location, globally, at all times • Mitigates terrain blockage because of multiple look angles from multiple moving satellites • Simple space segment repeater allows for development of higher performance beacon signal 4 MEOSAR Launch Schedule • SAR/Galileo: The first 30 Galileo satellites carrying a total of 28 SAR payloads deploying between 2012 and 2019 • SAR/Glonass-K: SAR payloads planned to be carried on the Russian GNSS Glonass-K1 and Glonass-K2 satellites • SAR/GPS: launch-ready date is 2023. After first launch, a GPS constellation of 24 satellites with SAR payloads should be in place within 10 years • SAR/GPS/DASS: currently 20 DASS payloads onboard GPS. Planned 8 more payloads (Block III) 5 GPS and SAR • U.S. SAR Operational Space Segment – Repeater payload will be provided by Canadian government built to C-S specifications including interoperability with Galileo and GLONASS – Development underway with first operational payload planned to launch on board GPS III SV-11 • SAR/GPS PDR – held November 20, 2013 • Payload provider decided to not extend vendor contract and will post an RFP this summer – Mitigates GPS schedule moving to the right • NASA role is safety and mission assurance oversight for payload build and integration into GPS 6 MEOSAR Payload Description • Cospas-Sarsat Program writing Payload Description document for current suite of GNSS payloads. Areas include: – Interoperability parameters: modulation of downlinks, downlink frequencies, downlink EIRPs and polarization, repeater bandwidth – Functional descriptions – Spectrum characteristics – Repeater coverage area – Repeater performance and transmitter parameters 7 MEOSAR Coverage Area • CospasCospas-Sarsat Program analyzing multiple simulations to show ground footprints of MEOLUTs around the world to ensure full Earth coverage – France, Russia, and USA producing independent computer models to compare against 8 MEOSAR Operational Capability Phases • Cospas-Sarsat Program transition to MEOSAR will occur in phases: – EOC: Early Operational Capability • Allow for distribution of MEOSAR alert data for operational use at a given MEOLUT once commissioned • USA has commissioned its first MEOLUT and will commission the second this month – IOC: Initial Operational Capability • Declaration by MEOSAR satellite providers and Cospas-Sarsat that, prior to full deployment, alert data from the MEOSAR system can be used operationally and shared with other Mission Control Centers (MCCs). The MEOSAR system need not necessarily provide global coverage – FOC: Full Operational Capability • Full Earth ground station coverage • Full complement of L-Band MEO spacecraft payloads 9 MEOSAR Current Status – Once Hawaii MEOLUT commissioned this month, USA will be the first nation to use MEOSAR data operationally (distribute to the USA Rescue Coordination Centers for all detected alerts) – France also working to commission their MEOLUTs – Demonstration and Evaluation of the MEOSAR system continues to progress • Completed second of three testing phases – Phase II includes GPS/DASS and available L-Band payloads – Phase III will test system performance with only L-Band payloads 10



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... LUTs status Saves and Events MEOSAR System and status Main Cospas... a first message. Cospas-Sarsat Operational MEOSAR System USA (GPS), Russia (GLONASS... “MEOSAR Implementation Plan” approved by Council. Cospas-Sarsat 406 MHz MEOSAR System... Beacon Cospas-Sarsat 406 MHz MEOSAR RLS System Concept GLONASS-K GPS... Cospas-Sarsat Tentative MEOSAR Implementation Schedule Cospas-Sarsat MEOSAR Space segment Status... by Cospas-Sarsat Participants for MEOSAR system development. Eleven more payloads... deployed by 2013. • One operational MEOSAR payload (Glonass-K) launched in early... end of 2019. Cospas-Sarsat MEOSAR Space segment Cospas-Sarsat MEOLUT... • Experimental MEOLUTs currently used for MEOSAR testing in: Brazil, Canada, France... second generation beacons operating in a MEOSAR environment. For example independent location...



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... EARTH ORBIT SEARCH AND RESCUE (MEOSAR) SATELLITE SYSTEM BETWEEN THE CO... LE SAUVETAGE EN ORBITE MOYENNE (MEOSAR) ENTRE LES ORGANISMES COOPÉRATEURS... EARTH ORBIT SEARCH AND RESCUE (MEOSAR) SATELLITE SYSTEM BETWEEN THE CO... European Union to coordinate their MEOSAR system planning and developmental activities... 1988. - “Compatibility” means that the MEOSAR components are capable of orderly... Earth orbit search and rescue (MEOSAR) satellite system between the Co... the Signatories focus on identifying MEOSAR system functional and performance requirements..., and on matters relating to MEOSAR and COSPAS-SARSAT system compatibility... the phase during which the MEOSAR component providers, and other States... and operational performance of the MEOSAR system as determined by on... on the use of the MEOSAR system operationally. - “GALILEO” means the... that the components of the MEOSAR system conform to a common architecture... and process signals from all MEOSAR constellations. - “MEOSAR component provider” means the... that contribute to the MEOSAR space segment. - “MEOSAR system” means the 406... the MEOSAR component providers will assess the basic capabilities of the MEOSAR... scope and content of the MEOSAR system demonstration and evaluation phase... development and evaluation of the MEOSAR system. -4- 2.2 The scope of this... pre-operational phases of the MEOSAR system implementation. The Signatories intend... instrument regarding co-operation on MEOSAR system operations to come into... evaluation of the MEOSAR system. 3.2 The Signatories expect each MEOSAR component provider... MEOSAR components as outlined in document C/S R.012 “COSPAS-SARSAT 406 MHz MEOSAR... to co-operate with the MEOSAR component providers with a view to... to other components of the MEOSAR system; c) do not cause harmful... C/S R.012 “COSPAS-SARSAT 406 MHz MEOSAR Implementation Plan”. 4.3 The Signatories intend... pre-operational phases of the MEOSAR system. The Signatories intend to... C/S R.012 “COSPAS-SARSAT 406 MHz MEOSAR Implementation Plan” to maintain its... develop MEOSAR space and ground segments; and c) ensure that the planned MEOSAR... and results to confirm the MEOSAR system’s ability to reliably receive... and results to confirm the MEOSAR system’s ability to locate 406...: a) coordinate with MEOSAR component providers the operation of the MEOSAR system; b) work... and operational performance of the MEOSAR system; c) conduct joint tests and... Undertaking; e) work jointly to develop MEOSAR system specifications, commissioning standards, and... procedures to implement an operational MEOSAR system; and f) work jointly to... coordinate the development of the MEOSAR system within the framework of... documents concerning MEOSAR space and ground segment development, and MEOSAR system demonstration... LE SAUVETAGE EN ORBITE MOYENNE (MEOSAR) ENTRE LES ORGANISMES COOPÉRATEURS... développement de leurs systèmes MEOSAR pour s’assurer que ces syst... les composantes du système MEOSAR peuvent être intégrées... le sauvetage en orbite moyenne (MEOSAR) entre les Organismes Coopérateurs... GALILEO. - « Fournisseur de la composante MEOSAR » signifie l’Entreprise commune Galileo et... qui contribuent au segment spatial MEOSAR. - « GALILEO » signifie le système... les composantes du système MEOSAR sont conformes à une architecture commune... provenance de toutes les constellations MEOSAR. - « Organismes Coopérateurs » signifie les... à la compatibilité des systèmes MEOSAR et COSPAS-SARSAT. - « Phase de... les Fournisseurs de la composante MEOSAR, ainsi que les autres États... opérationnelles du système MEOSAR déterminées au cours des... opérationelle du système MEOSAR. - « Phase de validation du concept... la composante MEOSAR évaluent les capacités fondamentales du système MEOSAR et... et d’évaluation du système MEOSAR. - « Phases pré-opérationnelles » signifie... du Système. - - « Système MEOSAR » signifie les instruments de recherche... et à l’évaluation du système MEOSAR. 2.2. La portée de cette Déclaration... en œuvre du système MEOSAR. Les Signataires ont l’intention de... opérationelle du système MEOSAR et entrera en vigueur apr...ème MEOSAR. 3.2. Les Signataires attendent de chaque Fournisseur de la composante MEOSAR... et l’interopérabilité des composantes MEOSAR tel que décrit dans le... les Fournisseurs de la composante MEOSAR afin de s’assurer que la... autres composantes du système MEOSAR ; c) ne causent pas de brouillage... de mise en œuvre du MEOSAR à 406 MHz de COSPASSARSAT ». 4.3 Les... en œuvre du système MEOSAR. Les Signataires entendent travailler conjointement... de mise en œuvre du MEOSAR à 406 MHz de COSPASSARSAT » pour... système MEOSAR ; et c) 5.3 s’assurer que le système MEOSAR prévu... la capacité du système MEOSAR à recevoir et à traiter de fa... la capacité du système MEOSAR à localiser les radiobalises à 406 MHz... de la composante MEOSAR l’exploitation du système MEOSAR ; b) travailler conjointement au... opérationnelles du système MEOSAR ; - 12 - c) effectuer conjointement les essais... en œuvre d’un système MEOSAR opérationnel ; et f) travailler conjointement... du MEOSAR, ainsi que la démonstration et l’évaluation du système MEOSAR...



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... the MEOSAR concept as defined in the Cospas-Sarsat 406 MHz MEOSAR Implementation Plan; Determine if new or enhanced MEOSAR requirements... content of the Cospas-Sarsat MEOSAR demonstration and evaluation phase. It... visible in optimal orbits. Figure 2 MEOSAR Proof-of-Concept Station at...



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.... Chosen for Australia/ New Zealand MEOSAR Infrastructure Deployment €13 Million+ Deal... and how the next generation MEOSAR system will dramatically improve the... International Search and Rescue system 2. MEOSAR: The future SAR satellite system.... Chosen for Australia/New Zealand MEOSAR Infrastructure Deployment 7. ACRONYMS, ABBREVIATIONS, PRESS... Earth Orbit Search and Rescue (MEOSAR) Satellite technology such as Galileo...-SARSAT and MEOSAR, please visit: http://www.mcmurdogroup.com/webinars/ 3 2. MEOSAR An... domain of Search & Rescue, the MEOSAR system represents a technological revolution similar... world of radionavigation in 1995. MEOSAR brings several improvements to COSPAS...: GPS  A constellation of approximately 72 MEOSAR satellites (vs. 6 GEOSAR and 6 LEOSAR... received by at least three MEOSAR satellites which locate the beacon... beacon locations more accurately. The MEOSAR system works essentially according to... system, but in reverse.  The MEOSAR system’s objective is to locate... receiver.  The part of the MEOSAR system carried by Galileo satellites... the Galileo system satellite/ All MEOSAR simulations and initial results have... under testing and evaluation, the MEOSAR program will begin its operational... reach full capacity before 2020. 4 MEOSAR Key Benefits ACRONYMS LEOSAR and... has 6 of each satellite today. MEOSAR (currently being deployed) Medium-altitude... early launch phase. How will MEOSAR revolutionize the SAR world ? Global... coverage will take 5 minutes with MEOSAR, compared to 45 minutes with... COSPAS SARSAT NEXT GEN WITH MEOSAR Starting end of 2014 / early...-Sarsat distress beacons using the MEOSAR satellite system. To select the...) conducted a joint tender to provide MEOSAR capability for the Australian and... and rescue system, and the MEOSAR system will allow us to... Maritime New Zealand Keith Manch. “MEOSAR will provide even greater confidence... to design, develop and install a MEOSAR system that will be at... TSi for COSPAS-SARSAT and MEOSAR infrastructure) into the industry’s most... the most recent advances in MEOSAR, the next generation COSPAS-SARSAT... efforts. As a key provider of MEOSAR infrastructure, which is expected to... successful installation of the Second MEOSAR Ground Station for U.S. National Oceanic.... Chosen for Australia/New Zealand MEOSAR Infrastructure Deployment 7. ACRONYMS, ABBREVIATIONS, PRESS... 1- McMurdo Group’s TSI: Leading the MEOSAR Program in the US TSi... Successful Installation of the Second MEOSAR Ground Station for the U.S. National... Earth Orbit Search and Rescue (MEOSAR) satellite Ground Station for the...’s first operationally ready six-antenna MEOSAR Local User Terminal (MEOLUT) in... combined with their leadership in MEOSAR technology has been instrumental in... TSi as we roll out MEOSAR operations.” The US SARSAT Program... deployment of the next generation MEOSAR program for COSPASSARSAT. TSI’s MEOLUT.... Chosen for Australia/New Zealand MEOSAR Infrastructure Deployment €13 Million+ Deal... search and rescue systems. The MEOSAR (Medium-altitude Earth Orbit Search... deployment of the only two MEOSAR systems in another major SAR... McMurdo Group as the premier MEOSAR infrastructure provider globally." The deal... $17million USD), includes a six-antenna MEOSAR satellite ground station system (MEOLUT.... The development and implementation of MEOSAR will reduce this time to... and rescue system, and the MEOSAR system will allow us to... forefront of life-saving technology.” MEOSAR, currently in its Demonstration and... Full Operational Capability by 2018. MEOSAR will use SAR-enhanced Galileo... Maritime New Zealand Keith Manch. “MEOSAR will provide even greater confidence... to design, develop and install a MEOSAR system that will be at... is also actively involved in MEOSAR, the next-generation COSPAS-SARSAT... Marketing randel.maestre@mcmurdogroup.com MEOSAR Key Locations: Medium-altitude Earth...



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Arama Kurtarma’da Uydu Teknolojileri: MEOSAR Özkan Kılıç1 Ali Solak2 1 Bilgisayar Mühendisli...ştir. Tüm dünyada MEOSAR sistemlerine yönelim vardır. Bu çalışmada MEOSAR sistemlerinin mevcut... Kelimeler:Arama Kurtarma, uydu teknolojileri, MEOSAR, COSPAS/SARSAT 1. Giriş Kesintisiz ileti...ışmalar sonucunda gelişmiş ülkeler, MEOSAR sistemlerinin kurulmasına yönelik çal...ılmıştır. Daha sonra kurulması önerilen MEOSAR sisteminin özelliklerine değinilerek COSPAS... Görev Kontrol Merkezleri (MCC). 3. MEOSAR ve Özellikleri MEOSAR sistemi, COSPAS/SARSAT sistemlerinin... yapılan çalışmalar sonucu MEOSAR sistemin geliştirilmesi yönünde çal... Şekil 3’te de görüldüğü gibi, MEOSAR uyduları çok daha geniş kapsama... zaten kapsama alanı içerisinde olacaktır. MEOSAR sistemlerinin S bandında test çal... bilgisinin değerlendirilmesinin yanısıra MEOSAR’dan gelen bilgininde gözlemlenmesini sa... Kapsama Alanları Örneği [7] 4. MEOSAR Sisteminin Avantajları ve Kurulumu MEOSAR sistemi mevcut sistemlerle...ği Performans Algılama sinyal sayısı MEOSAR Daha hızlı Daha büyük Evet COSPAS... Tablo 1 MEOSAR ve COSPAS/SARSAT Karşılaştırması Tablo 1’de MEOSAR ve... konusunda MEOSAR sisteminin üstün olduğu görülmektedir. Tüm bu avantajlar, dünya devletlerini MEOSAR sisteminin... http://www.cospas-sarsat.org MEOSAR sisteminin kurulum bütçesi yaklaşık 1.5 milyon...ı yoktur. [6] COSPAS-SARSAT 406 MHz MEOSAR IMPLEMENTATION PLAN C/S R.012 Issue 1 – Revision... [9] bu durum gözönünde bulundurulduğunda MEOSAR sistemi ile birlikte yanlış alarm.... 2012 yılında mevcut sistemin tamamen MEOSAR sistemine geçeceği öngörüsü dikkate...’nin ivedilikle katılması gerekmektedir. MEOSAR sisteminin pek çok yönden avantajl...). Arama Kurtarma’da Uydu Teknolojileri: MEOSAR Özkan Kılıç1 Ali Solak2 1 Bilgisayar Mühendisli...ştir. Tüm dünyada MEOSAR sistemlerine yönelim vardır. Bu çalışmada MEOSAR sistemlerinin mevcut... Kelimeler:Arama Kurtarma, uydu teknolojileri, MEOSAR, COSPAS/SARSAT 1. Giriş Kesintisiz ileti...ışmalar sonucunda gelişmiş ülkeler, MEOSAR sistemlerinin kurulmasına yönelik çal...ılmıştır. Daha sonra kurulması önerilen MEOSAR sisteminin özelliklerine değinilerek COSPAS... Görev Kontrol Merkezleri (MCC). 3. MEOSAR ve Özellikleri MEOSAR sistemi, COSPAS/SARSAT sistemlerinin... yapılan çalışmalar sonucu MEOSAR sistemin geliştirilmesi yönünde çal... Şekil 3’te de görüldüğü gibi, MEOSAR uyduları çok daha geniş kapsama... zaten kapsama alanı içerisinde olacaktır. MEOSAR sistemlerinin S bandında test çal... bilgisinin değerlendirilmesinin yanısıra MEOSAR’dan gelen bilgininde gözlemlenmesini sa... Kapsama Alanları Örneği [7] 4. MEOSAR Sisteminin Avantajları ve Kurulumu MEOSAR sistemi mevcut sistemlerle...ği Performans Algılama sinyal sayısı MEOSAR Daha hızlı Daha büyük Evet COSPAS... Tablo 1 MEOSAR ve COSPAS/SARSAT Karşılaştırması Tablo 1’de MEOSAR ve... konusunda MEOSAR sisteminin üstün olduğu görülmektedir. Tüm bu avantajlar, dünya devletlerini MEOSAR sisteminin... http://www.cospas-sarsat.org MEOSAR sisteminin kurulum bütçesi yaklaşık 1.5 milyon...ı yoktur. [6] COSPAS-SARSAT 406 MHz MEOSAR IMPLEMENTATION PLAN C/S R.012 Issue 1 – Revision... [9] bu durum gözönünde bulundurulduğunda MEOSAR sistemi ile birlikte yanlış alarm.... 2012 yılında mevcut sistemin tamamen MEOSAR sistemine geçeceği öngörüsü dikkate...’nin ivedilikle katılması gerekmektedir. MEOSAR sisteminin pek çok yönden avantajl...



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MEOSAR & GPS 9th Meeting of ICG Prague, Czech Republic, November 2014 Dr. Lisa Mazzuca, Mission Manager Search and Rescue Office Goddard Space Flight Center Cospas-Sarsat System Overview •  Cospas-Sarsat (C-S) Program uses dedicated Search and Rescue (SAR) payloads onboard satellites to relay beacons signals to ground stations •  C-S system consists of three segments: –  User Segment – the emergency beacon transmitters •  Marine: EPIRB (Emergency Position Indicating Radio Beacon) •  Aviation: ELT (Emergency Locating Transmitter) •  Land: PLB (Personal Locating Beacon) –  Space Segment •  LEOSAR: Low-Earth Orbit - Provides for beacon location using Doppler processing; uses Store & Forward instrument to provide global coverage •  GEOSAR: Geosynchronous Orbit Performs instantaneous alerting function; no locating capability unless beacon is equipped with GNSS receiver. •  MEOSAR*: Mid-Earth Orbit (GNSS) –  Ground Segment – Local User Terminals (LUTs) * MEO is not yet operational – early operational capability Dec 2015 2 MEOSAR Concept of Operations 3 MEOSAR Next generation of satellite-aided SAR •  Based on the use of SAR Repeaters carried on board Global Navigation Satellite System (GNSS) satellites •  GNSS constellations consist of 24 (or more) satellites Mid Earth Orbit (GPS, Galileo, GLONASS) •  Provides –  Multiple satellites in view of the beacon anywhere in the world at all times –  Advanced location process using time and frequency measurements of beacon signal to triangulate its location –  Near instantaneous beacon detection and location, globally, at all times –  Mitigates terrain blockage due to multiple look angles from multiple moving satellites –  Robust space segment, well maintained and highly redundant –  Simple space segment repeater allows for development of higher performance beacon signal 4 GPS and SAR •  U.S. SAR Operational Space Segment –  In 2009 USAF approved request from U.S. civil SAR community to host SAR repeaters on 24 GPS-III satellites –  Repeater payload will be provided by Canadian Government built to C-S specifications including interoperability with Galileo and GLONASS –  Development underway with first operational payload planned to launch on board GPS III SV-9 •  SAR/GPS PDR – held November 20, 2013 –  Distress Alert Satellite System (DASS) onboard GPSII (16 payloads) •  USA (Coast Guard & Air Force) planning to incorporate MEOSAR data for operational use in mid-2015 5 Return Link Service (RLS) GNSS-enabled enhancement •  MEOSAR enables RLS capability –  Type-1 protocol adopted by C-S: return link message sent automatically when location of alert has been confirmed •  Galileo and GLONASS planning to use RLS –  GPS has the capability to implement RLS but not currently in the concept of operations (SAR/GPS not fully interoperable with other GNSS) •  Upon detection of an RLS enabled beacon, the US Mission Control Center (USMCC) must forward beacon message to French MCC –  Bit embedded in beacon message indicating RLS beacon –  Impacts interoperability and response time to SAR incident •  GPS Modifications –  Need authority to use bits (estimate 80 bits for Type-1 message and beacon ID); –  SAR downlink needs to go from USMCC to GPS control center, which then sends command to GPS to insert the message into the PNT downlink 6