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MEOSAR & GPS 9Th Meeting of the ICG Prague, Czech Republic, November 2014
MEOSAR & GPS 9th Meeting of the ICG Prague, Czech Republic, November 2014 Dr. Lisa Mazzuca, Mission Manager Search and Rescue Office Goddard Space Flight Center Overview • Cospas-Sarsat System – Current operational infrastructure – Near-future: GNSS-enabled SAR (MEOSAR) • MEOSAR implementation timeline • SAR using – GPS – Galileo – GLONASS • MEOSAR and Return Link Service (RLS) 2 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) 3 * MEO is not yet operational – early operational capability Dec 2015 MEOSAR Concept of Operations 4 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 -
Handbookhandbook Mobile-Satellite Service (MSS) Handbook
n International Telecommunication Union Mobile-satellite service (MSS) HandbookHandbook Mobile-satellite service (MSS) Handbook *00000* Edition 2002 Printed in Switzerland Geneva, 2002 ISBN 92-61-09951-3 Radiocommunication Bureau Edition 2002 THE RADIOCOMMUNICATION SECTOR OF ITU The role of the Radiocommunication Sector is to ensure the rational, equitable, efficient and economical use of the radio-frequency spectrum by all radiocommunication services, including satellite services, and carry out studies without limit of frequency range on the basis of which Recommendations are adopted. The regulatory and policy functions of the Radiocommunication Sector are performed by World and Regional Radiocommunication Conferences and Radiocommunication Assemblies supported by Study Groups. Inquiries about radiocommunication matters Please contact: ITU Radiocommunication Bureau Place des Nations CH -1211 Geneva 20 Switzerland Telephone: +41 22 730 5800 Fax: +41 22 730 5785 E-mail: [email protected] Web: www.itu.int/itu-r Placing orders for ITU publications Please note that orders cannot be taken over the telephone. They should be sent by fax or e-mail. ITU Sales and Marketing Division Place des Nations CH -1211 Geneva 20 Switzerland Telephone: +41 22 730 6141 English Telephone: +41 22 730 6142 French Telephone: +41 22 730 6143 Spanish Fax: +41 22 730 5194 Telex: 421 000 uit ch Telegram: ITU GENEVE E-mail: [email protected] The Electronic Bookshop of ITU: www.itu.int/publications ITU 2002 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without the prior written permission of ITU. International Telecommunication Union HandbookHandbook Mobile-satellite service (MSS) Radiocommunication Bureau Edition 2002 - iii - FOREWORD In today’s world, people have become increasingly mobile in both their work and play. -
Howard Hughes
Howard Hughes Howard Hughes September 24, 1905 Born Houston, Texas, USA April 5, 1976 (aged 70) Died Houston, Texas, USA Chairman, Hughes Aircraft; Occupation industrialist; aviator; engineer; film producer Net worth US$12.8 bn (1958 Forbes 400) Ella Rice (1925-1929) Spouse Terry Moore (1949-1976) Jean Peters (1957-1971) For the Welsh murderer, see Howard Hughes (murderer). Howard Robard Hughes, Jr. (September 24, 1905 – April 5, 1976) was, in his time, an aviator, engineer, industrialist, film producer and director, a palgrave, a playboy, an eccentric, and one of the wealthiest people in the world. He is famous for setting multiple, world air-speed records, building the Hughes H-1 Racer and H-4 Hercules airplanes, producing the movies Hell's Angels and The Outlaw, owning and expanding TWA, his enormous intellect[1], and for his debilitating eccentric behavior in later life. Early years Hughes was born in Houston, Texas, on 24 September or 24 December 1905. Hughes claimed his birthday was Christmas Eve, although some biographers debate his exact birth date, (according to NNDB.com, it was most likely "the more mundane date of September 24"[2] ). His parents were Allene Stone Gano Hughes (a descendant of Catherine of Valois, Dowager Queen of England, by second husband Owen Tudor) [3][4] and Howard R. Hughes, Sr., who patented the tri-cone roller bit, which 1 allowed rotary drilling for oil in previously inaccessible places. Howard R. Hughes, Sr. founded Hughes Tool Company in 1909 to commercialize this invention. Hughes grew up under the strong influence of his mother, who was obsessed with protecting her son from all germs and diseases. -
Towards Federated Satellite Systems and Internet of Satellites: the Federation Deployment Control Protocol
remote sensing Article Towards Federated Satellite Systems and Internet of Satellites: The Federation Deployment Control Protocol Joan A. Ruiz-de-Azua 1,2,3,* , Nicola Garzaniti 4 , Alessandro Golkar 4 , Anna Calveras 1 and Adriano Camps 2,3 1 Department of Network Engineering, Universitat Politècnica de Catalunya—UPC BarcelonaTech, 08034 Barcelona, Spain; [email protected] 2 Department of Signal Theory and Communications, Universitat Politècnica de Catalunya—UPC BarcelonaTech, 08034 Barcelona, Spain; [email protected] 3 Research Group in Space Science and Technologies (CTE-UPC), Institut d’Estudis Espacials de Catalunya (IEEC), 08034 Barcelona, Spain 4 Center for Entrepreneurship and Innovation, Skolkovo Institute of Science and Technology (Skoltech), 143026 Skolkovo, Russia; [email protected] (N.G.); [email protected] (A.G.) * Correspondence: [email protected] Abstract: Presently, the Earth Observation community is demanding applications that provide low latency and high downlink capabilities. An increase in downlink contacts becomes essential to meet these new requirements. The Federated Satellite Systems concept addresses this demand by promoting satellite collaborations to share unused downlink opportunities. These collaborations are established opportunistically and temporarily, posing multiple technology challenges to be implemented in-orbit. This work contributes to the definition of the Federation Deployment Control Protocol which formalizes a mechanism to fairly establish and manage these collaborations by Citation: Ruiz-de-Azua, J.A.; employing a negotiation process between the satellites. Moreover, this manuscript presents the Garzaniti, N.; Golkar, A.; Calveras, A.; results of a validation campaign of this protocol with three stratospheric balloons. In summary, more Camps, A. Towards Federated than 27 federations with 63.0% of throughput were established during the field campaign. -
Reorganization Strengthened Delco to Deal with a Challenging
reorganization strengthened Delco to deal business that is succeeding. Employee byes are with a challenging competitive environment. disrupted, customer relationships must be pre· making possible new steps toward rightsizing served. shareholders need to be assured and sat· and structural cost reductions, accelerated Isfied even as the need to do daily banlc with technology introduction into GM's North the competitIOn continues. /\merican Operanons, and a realignment of Yet. at each stage in our company's history. International operations to sharpen focus on Hughes has always been a place where people profitable growth accept change as challenge - a company that's been too busy defining the future to be afraid As the fastest growing segment of Hughes of it. We are confident the changes we're mak· Electronics, Telecommunications and Space ing in 1997 will serve to solidify the one con· posted a 33% growth rate in 1996 - with total stant through Hughes' long history - securing revenues of $4.1 billion. Hughes Space and this company's legacy as an industry leader for Communications increased revenues by 21 %, years to come. Hughes Nerwork Systems broke the $1 billion revenue threshold for the first time, while the PanAmSat merger announcement marked a major milestone on the path to a truly global C. Michael Armstrong communications service. DIRECTV in the Chairman of the Board and United States, attained a subscriber base of 2.5 Chief Executive Officer million in early 1997, making it equivalent in size to the nation's seventh largest cable televi sion company. Using technology, talent and investment to lead in markets, to build new businesses, to cre Charles H. -
Space Business Review International Mobile Telecommunications Services, Including Wimax
December 2007 - SPECIAL EDITION: THE TOP-10 SPACE BUSINESS STORIES OF 2007 - #1 - M&A Transactions Keep Pace #5 - 50th Anniversary of Sputnik Despite challenging credit markets, merger, As we celebrate the 50th anniversary of the acquisition and investment activity kept pace in satellite that introduced the “space age”, 2007. Abertis & Caisse des Dépôts et approximately 1,000 satellites now orbit the consignations purchase 32% (€1.07B) and Earth and the space business has grown to 25.5% (€862.7M) stakes, respectively, in more than $100 billion in annual revenues. Eutelsat (Jan.). GE Capital sells back its 19.5% #6 - Satellite Manufacturers Remain Busy interest in SES Global for €588 million in cash 18 commercial satellite orders announced in and assets including stakes in AsiaSat, Star 2007. Ball Aerospace & Technologies: One and Orbcomm (Feb.). JSAT & SKY WorldView-2. EADS Astrium: YahSat 1A Perfect Communications merge (March). BC and 1B, Arabsat 5A, BADR-5 (the foregoing Partners to acquire Intelsat Ltd. for $16.4 billion, in cooperation with Thales Alenia Space) including debt (June). Carlyle Group to acquire and Alphasat 1-XL. Israel Aerospace ARINC (July). Apax Partners France Industries: Amos-4. Lockheed Martin purchases Telenor Satellite Services for $400 Commercial Space Systems: JCSAT-12. million (Sept.). Loral Space & Orbital Sciences Corporation: Optus-D3, Communications and PSP Canada conclude AMC-5R. Space Systems/Loral: Nimiq 5, C$3.25 billion acquisition of Telesat Canada ProtoStar I, Intelsat 14, SIRIUS FM-6, Abertis to acquire 28.4% stake in Hispasat EchoStar XIV, NSS-12. Thales Alenia (Nov.). CIP Canada Investment, indirectly Space: THOR 6, Palapa-D. -
FEDERAL COMMUNICATIONS COMMISSION Washington, D.C
Before the FEDERAL COMMUNICATIONS COMMISSION Washington, D.C. 20554 ____________________________________ ) Application of ) ) DIRECTV ENTERPRISES, LLC ) Call Sign: ) For Authorization to Launch and ) File No. SAT-LOA-_____________ Operate DIRECTV KU-76W, a ) Ku-Band Space Station, at 76.0 WL ) ____________________________________) APPLICATION FOR AUTHORIZATION TO LAUNCH AND OPERATE DIRECTV KU-76W William M. Wiltshire Michael D. Nilsson WILTSHIRE & GRANNIS LLP 1200 Eighteenth Street, N.W. Washington, DC 20036 202-730-1300 tel 202-730-1301 fax TABLE OF CONTENTS Page I. GRANT OF THIS APPLICATION WOULD SERVE THE PUBLIC INTEREST ............... 2 II. INFORMATION REQUIRED UNDER SEC. 25.114 OF THE COMMISSION’S RULES ... 3 1. Name, Address, and Telephone Number of Applicant ............................... 3 2. Name, Address, and Telephone Number of Counsel .................................. 3 3. Type of Authorization Requested ............................................................... 3 4. General Description of Overall System Facilities, Operations and Services ..................................................................................................................... 3 5. Operational Characteristics ......................................................................... 4 5.1 Frequency and Polarization Plan .................................................... 4 5.2 Communications Payload ............................................................... 5 5.2.1 Uplink Transmissions 5 5.2.2 Downlink Transmissions ....................................................................................... -
Positioning Using IRIDIUM Satellite Signals of Opportunity in Weak Signal Environment
electronics Article Positioning Using IRIDIUM Satellite Signals of Opportunity in Weak Signal Environment Zizhong Tan, Honglei Qin, Li Cong * and Chao Zhao School of Electronic and Information Engineering, Beihang University (BUAA), Beijing 100191, China; [email protected] (Z.T.); [email protected] (H.Q.); [email protected] (C.Z.) * Correspondence: [email protected]; Tel.: +86-1381-0629-638 Received: 9 December 2019; Accepted: 25 December 2019; Published: 27 December 2019 Abstract: In order to get rid of the dependence of the navigation and positioning system on the global navigation satellite system (GNSS), radio, television, satellite, and other signals of opportunity (SOPs) can be used to achieve receiver positioning. The space-based SOPs based on satellites offer better coverage and availability than ground-based SOPs. Based on the related research of Iridium SOPs positioning in the open environment, this paper mainly focuses on the occluded environment and studies the Iridium SOPs positioning technique in weak signal environment. A new quadratic square accumulating instantaneous Doppler estimation algorithm (QSA-IDE) is proposed after analysing the orbit and signal characteristics of the Iridium satellite. The new method can improve the ability of the Iridium weak signal Doppler estimation. The theoretical analysis and positioning results based on real signal data show that the positioning based on Iridium SOPs can be realized in a weak signal environment. The research broadens the applicable environment of the Iridium SOPs positioning, thereby improving the availability and continuity of its positioning. Keywords: signals of opportunity positioning; Iridium; weak signal; instantaneous Doppler 1. Introduction The new methods for receiver positioning based on abundant and various frequency signals have emerged in recent years. -
Spectrum and the Technological Transformation of the Satellite Industry Prepared by Strand Consulting on Behalf of the Satellite Industry Association1
Spectrum & the Technological Transformation of the Satellite Industry Spectrum and the Technological Transformation of the Satellite Industry Prepared by Strand Consulting on behalf of the Satellite Industry Association1 1 AT&T, a member of SIA, does not necessarily endorse all conclusions of this study. Page 1 of 75 Spectrum & the Technological Transformation of the Satellite Industry 1. Table of Contents 1. Table of Contents ................................................................................................ 1 2. Executive Summary ............................................................................................. 4 2.1. What the satellite industry does for the U.S. today ............................................... 4 2.2. What the satellite industry offers going forward ................................................... 4 2.3. Innovation in the satellite industry ........................................................................ 5 3. Introduction ......................................................................................................... 7 3.1. Overview .................................................................................................................. 7 3.2. Spectrum Basics ...................................................................................................... 8 3.3. Satellite Industry Segments .................................................................................... 9 3.3.1. Satellite Communications .............................................................................. -
PUBLIC NOTICE FEDERAL COMMUNICATIONS COMMISSION 445 12Th STREET S.W
PUBLIC NOTICE FEDERAL COMMUNICATIONS COMMISSION 445 12th STREET S.W. WASHINGTON D.C. 20554 News media information 202-418-0500 Internet: http://www.fcc.gov (or ftp.fcc.gov) TTY (202) 418-2555 Report No. SES-01927 Wednesday February 8, 2017 Satellite Communications Services Information re: Actions Taken The Commission, by its International Bureau, took the following actions pursuant to delegated authority. The effective dates of the actions are the dates specified. SES-LIC-20161223-00969 E E160180 ACC Licensee, LLC EZ Application for Authority 01/31/2017 - 01/31/2032 Grant of Authority Date Effective: 01/31/2017 Class of Station: Temporary Fixed Earth Station Nature of Service: Fixed Satellite Service SITE ID: 1 LOCATION: Transportable ANTENNA ID: 1 1.4 meters AVL Technologies 1410K 14000.0000 - 14500.0000 MHz 36M0G7W 65.47 dBW Compressed Digital Video and Audio Points of Communication: 1 - PERMITTED LIST - () SES-MOD-20161216-00949 E E040399 WLS Television, Inc. Application for Modification 11/30/2004 - 11/30/2019 Grant of Authority Date Effective: 02/01/2017 Class of Station: Temporary Fixed Earth Station Nature of Service: Fixed Satellite Service SITE ID: 1 LOCATION: GREATER CHICAGO METRO AREA AND MIDWESTERN USA, VARIOUS ANTENNA ID: 1 1.5 meters ADVENT COMMUNICATIONS NEWS SWIFT 150 KMA Page 1 of 5 14000.0000 - 14500.0000 MHz 36M0G7W 66.30 dBW PSK DIGITAL VIDEO, AUDIO, VOICE AND DATA ANTENNA ID: 2CHICAGO 1.4 meters AVL TECHNOLOGIES 1410 14000.0000 - 14500.0000 MHz 36M0G7W 65.00 dBW SINGLE CARRIER DVB S/S2 DIGITAL VIDEO, PROGRAM AUDIO,, VOICE AND DATA. Points of Communication: 1 - PERMITTED LIST - () SES-RWL-20170131-00110 E E020099 Vyve Broadband A Renewal 04/04/2017 - 04/04/2032 Grant of Authority Date Effective: 02/02/2017 Class of Station: Fixed Earth Stations Nature of Service: Domestic Fixed Satellite Service SITE ID: 1 LOCATION: 19670 302ND ROAD, ATCHISON, ATCHISON, KS 39 ° 35 ' 44.90 " N LAT. -
DESIGN of a LOW-COST AUGMENTATION NAVIGATION SYSTEM: the UNITED KINGDOM’S IMMEDIATE ANSWER to the GALILEO BREXIT
DESIGN OF A LOW-COST AUGMENTATION NAVIGATION SYSTEM: THE UNITED KINGDOM’s IMMEDIATE ANSWER TO THE GALILEO BREXIT CONUNDRUM Lawal S Lasisi Satellite Applications and Development, Nigerian Communications Satellite Ltd, Obasanjo Space Center, affiliated to Federal University of Technology, Minna-Nigeria. e-mail: [email protected]; +2348023151587. Chatwin R Chris Engineering and Design, School of Engineering and Informatics, Room 2B07, Shawcross Building, University of Sussex, Falmer, Brighton-UK, BN1 9QT e-mail: [email protected]; +441273678901. ABSTRACT United Kingdom’s Brexit from the European Union implies restricted access to the European Global Navigation Satellite System (GNSS) System - Galileo; with no access to the secured and encrypted signal used for defense and government purposes, which is restricted to European Union (EU) members. To mitigate this issue, the United Kingdom can, as a matter of urgency, launch a payload on a national military Communications Satellite to provide Navigation Overlay Services for the United Kingdom territory, surrounding waters and neighboring ally countries to meet the requirements of: Defense systems, Aviation, Maritime requirements and the effectiveness of Location-based Services for Emergencies and Crisis management etc. This paper describes the design of a navigation overlay service system as a hoisted payload on a national satellite and the required supporting ground infrastructure, highlighting various applications, services and solutions. Keywords: Brexit, Communications Satellite, Defence, European Union (EU), Galileo, GNSS, Military, Precision Point Positioning, SBAS. 1 INTRODUCTION TO GLOBAL NAVIGATION SATELLITE SYSTEM (GNSS) The United States Global Positioning System (GPS) marked the beginning of Global Navigation Satellite Systems (GNSS). After the First World War, radio time signals offered alternative technology for determination of the Greenwich Time line and thus longitude at sea. -
Federal Communications Commission FCC 16-181 Before
Federal Communications Commission FCC 16-181 Before the Federal Communications Commission Washington, D.C. 20554 In the Matter of ) ) Terrestrial Use of the 2473-2495 MHz Band for ) IB Docket No. 13-213 Low-Power Mobile Broadband Networks; ) RM-11685 Amendments to Rules for the Ancillary Terrestrial ) Component of Mobile Satellite Service Systems ) REPORT AND ORDER Adopted: December 22, 2016 Released: December 23, 2016 By the Commission: Commissioners Pai and O’Rielly issuing separate statements. TABLE OF CONTENTS Heading Paragraph # I. INTRODUCTION.................................................................................................................................. 1 II. BACKGROUND.................................................................................................................................... 4 A. The Big LEO Bands and Ancillary Terrestrial Component Rules................................................... 4 B. Globalstar’s Petition for Rulemaking .............................................................................................. 5 C. Notice of Proposed Rulemaking ...................................................................................................... 6 III. DISCUSSION ........................................................................................................................................ 7 A. Part 25 Revisions ............................................................................................................................. 7 1. Allowing greater terrestrial