Global Navigation Satellite Systems Engineering, Policy, and Design
Budget storms have reappeared on the horizon and the fore¬cast for defense expenditures, including for the GPS program, is grim with a high probability of ugly.
By Dee Ann Divis
CORS and OPUS for Engineers
Edited by Tomás Soler
PUBLISHED BY THE AMERICAN SOCIETY OF CIVIL ENGINEERS
Consumer demand for positioning information is currently being met by a plethora of wireless positioning technologies. The most popular consumer positioning technology, GNSS, is only one option along with several methods that use cellular networks to provide location, such as wireless local area networks (WLANs), wireless personal area networks (WPANs), radio frequency identification (RFID) tags, and ultrawideband (UWB) communications.
By Inside GNSS
FIGURE 1: Current availability in the Arctic with VAL=35 m and HAL=40m.The Arctic houses an estimated 90 billion barrels of undiscovered, technically recoverable oil and 44 billion barrels of natural gas liquids according to the U.S. Geological Survey. These potential energy reserves represent 13 percent of the untapped oil in the world.
By Inside GNSS
FIGURE 1: Simplified probe architectureGNSS vulnerability is rightly one of the most talked about topics of 2011.
By Inside GNSS
FIGURE 1: GPS III On OrbitIn May 2008, Lockheed Martin Space Systems Company received a contract from the U.S. Air Force to develop a new, third generation of GPS satellites. The GPS III space vehicle (SV) has been designed (Figure 1, see inset photo, above right) and is now being built to bring new future capabilities to both military and civil positioning, navigation, and timing (PNT) users throughout the globe.
By Inside GNSS
ICG Program Officer Sharafat Gadimova[Updated Sept 7, 2011] The United Nations and the United States will co-sponsor a special meeting to commemorate 10 years of achievement on the global navigation satellite systems on December 12-16, 2011 at the United Nations office Vienna International Center in Vienna, Austria.
The main discussion will center around the International Committee on GNSS (ICG), created by The UN Office of Outer Space Affairs (OOSA) in 2005 to bring together all system providers and smooth the way for global development of the satellite navigation systems.
By Inside GNSS
Scenic Jeju IslandThe third Asia Oceania Regional Workshop on GNSS will take place on Jeju Island, Korea on November 1 and 2, 2011.
Japan’s first Quasi-Zenith satellite "Michibiki" is now transmitting positioning signals and its technical and application verificationr results will be a major topic at this year’s event.
By Inside GNSS
IET headquarters, Savoy PlaceThe head of the Galileo program division of the UK’s space agency, the PRS expert at the European GNSS agency and the director of the Nottingham Geospatial Institute are just a few of the speakers at a one-day seminar in central London on October 5 called "Modernized Satellite Navigation: The Implementation of GNSS Programmes and Future Challenges."
The Wednesday event will take place at the IET Savoy Place conference center from 9 a.m. until 5 p.m
By Inside GNSS
ENAC campus courtyardThe fifth European workshop on GNSS signals and signal processing will take place at ENAC headquarters (École Nationale de l’Aviation Civile), in Toulouse, France on December 8 and 9, 2011.
The workshop will give an overview of GNSS signals, characteristics, and performances related to any of the navigation, positioning, timing, attitude determination and scientific GNSS services. Papers have been accepted on the use of EGNOS (3,4) and GALILEO (1,2) signals, and all other GNSS signals for operational and/or scientific applications, with 1 to 5 frequencies.
By Inside GNSS
The 43rd PTTI meeting will be held at the Hyatt Regency Long Beach in Long Beach, California on November 14-17, 2011.
Each year, experts meet to exchange precise time and time interval information at the user level, inform government and industry of the technology and its challenges, discuss new technology and review present and future PTTI requirements.
By Inside GNSS
Namur Palais des CongresThe 8th European Space Weather Week conference will take place in Namurs, Belgium from November 28 to December 2 ,2011. The conference venue is the old stock exchange of the Walloon capital, transformed into a convention center.
The annual event is sponsored by the European Space Agency. This year, the local organizer is the Solar-Terrestrial Center of Excellence (STCE).
By Inside GNSS
Detail from the collections of the Calais lace museumThe Space Reflecto international workshop on passive reflectometry using radiocom space signals will be held in Calais, France on October 27 and 28, 2011. The conference venue is the auditorium of a former lace factory transformed into a museum – Cité Internationale de la Dentelle et de la Mode de Calais.
Topics of particular interest to Inside GNSS readers include:
By Inside GNSS
