Global Navigation Satellite Systems Engineering, Policy, and Design
The National Space-Based Positioning, Navigation, and Timing (PNT) Advisory Board will meet next week, where the issue of interference to GPS from LightSquared’s terrestrial wireless broadband transmitters will get another airing.
By Inside GNSS
L-3 Interstate Electronics Corporation (IEC) unveiled its next generation, military GPS receiver — incorporating a Common GPS Module (CGM) — at the Association of the United States Army (AUSA) 2011 Annual Meeting and Exposition currently under way in Washington, D.C.
The company’s first CGM product processes precise code (P-code), coarse/acquisition code (C/A) code, and the modernized military M-code signals. In addition, the new design provides a common security architecture including improved anti-jam and anti-spoof capabilities.
By Inside GNSS
While a representative for a proposed broadband network assured attendees at a recent satellite navigation meeting that their telecom system could co-exist with the Global Positioning System, a panel of GPS experts raised new doubts about the broadband system and interference from its handsets.
By Inside GNSS
Air Force Space Commander Gen. William Shelton at House Armed Services subcommittee hearingAmidst a storm of political controversy and the conspicuous absence of a key administration witness, Department of Defense (DoD) officials told members of Congress today (September 15, 2011) that a proposed broadband wireless service would degrade or render useless billions of dollars of equipment essential to military operations.
By Inside GNSS
In a remarkable change of momentum, the Federal Communications Commission (FCC) issued a public notice yesterday (September 13, 2011) stating that “additional targeted testing” is needed in the matter of LightSquared Subsidiary LLC’s interference to GPS.
By Inside GNSS
LightSquared told a congressional committee today (September 8, 2011) that it would limit the on-the-ground power of its signals to avoid overpowering GPS receivers, which use frequencies next door that the company proposes to have rezoned for its high-powered wireless broadband network.
By Inside GNSS
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: 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
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
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
