Global Navigation Satellite Systems Engineering, Policy, and Design
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
eVotz plans to make the voting booth passé.The 2011 USA Challenge will give ION GNSS participants a chance to pick their favorite satellite navigation application from this year’s contest using eVotz, a mobile voting platform that won the competition last year.
By Inside GNSS
[Updated September 2, 2011] Amid White House efforts to keep a lid on the process and congressional hearings on the subject, the controversy surrounding LightSquared’s interference to GPS could compel the Federal Communications Commission (FCC) to require another round of testing — this time of the wireless broadband company’s lower L-band frequencies.
By Inside GNSS
Now that Hurricane Irene and summer vacation have blown over, members of Congress are returning to Washington, D.C., to resume — among other things — addressing the question of LightSquared’s interference to GNSS.
A hearing originally scheduled for August 3 is back on the agenda for the U.S. House Science, Space, and Technology Committee and now scheduled for 2 to 4 p.m. on September 8.
By Inside GNSS
Command and control of the second GPS Block IIF satellite has been turned over to the 50th Space Wing’s 2nd Space Operations Squadron (2SOP) at Schriever Air Force Base, Colorado, today (August 22, 2011).
The Space and Missile Systems Center’s (SMC) GPS Directorate, located at Los Angeles Air Force Base, retained control of the satellite during a 30-day on-orbit checkout period before the hand-off to 2 SOPS.
By Inside GNSS
