A: System Categories Archives - Page 173 of 222 - Inside GNSS - Global Navigation Satellite Systems Engineering, Policy, and Design

September 9, 2011

First Galileo IOV Satellite Reaches Kourou

The Galileo In-Orbit Validation (IOV) ProtoFlight Model (PFM) and Flight Models (FM-2, FM-3 and FM-4) undergoing assembly and testing at Thales Alenia Space’s facility in Rome during May 2011. ESA – S. Corvaja

The first Galileo navigation satellite arrived Wednesday (September 7, 2011) in Europe’s Spaceport in French Guiana, ready to begin preparations for launch on 20 October.

Packed within its protective, air-conditioned container, the satellite — known as Known as Flight Model 2, or FM2 — landed at Cayenne Rochambeau Airport aboard an Antonov aircraft, having departed from Thales Alenia Space Italy’s Rome facility, where it was built.

By Inside GNSS

Officials Decry Risks of Severe GPS Interference; LightSquared Makes New Offer

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

September 8, 2011

Looming Budget Hurricane Could Swamp the GPS Landscape

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

A Comprehensive Reference for OPUS

CORS and OPUS for Engineers
Edited by Tomás Soler
PUBLISHED BY THE AMERICAN SOCIETY OF CIVIL ENGINEERS

By Inside GNSS

Everywhere Navigation

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

Breaking the Ice

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

Protecting the UK Infrastructure

FIGURE 1: Simplified probe architecture

GNSS vulnerability is rightly one of the most talked about topics of 2011.

By Inside GNSS

GPS III

FIGURE 1: GPS III On Orbit

In 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

United Nations International Meeting on The Applications of 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

September 6, 2011

3rd Asia Oceania Regional Workshop on GNSS

Scenic Jeju Island

The 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 London: Modernised Satellite Navigation Seminar

IET headquarters, Savoy Place

The 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

September 5, 2011

GNSS Signals 2011: European Workshop on Signals and Signal Processing

ENAC campus courtyard

The 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

PTTI 2011: Precise Time and Time Interval Systems and Applications Meeting

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

A: System Categories

LightSquared Would Jam GPS, Defense Officials Tell Congress...

FCC Calls for More Testing of Lightsquared Interference to GPS; W...

First Galileo IOV Satellite Reaches Kourou

Officials Decry Risks of Severe GPS Interference; LightSquared Makes New Offer

Looming Budget Hurricane Could Swamp the GPS Landscape

A Comprehensive Reference for OPUS

Everywhere Navigation

Breaking the Ice

Protecting the UK Infrastructure

GPS III

United Nations International Meeting on The Applications of GNSS

3rd Asia Oceania Regional Workshop on GNSS

IET London: Modernised Satellite Navigation Seminar

GNSS Signals 2011: European Workshop on Signals and Signal Processing

PTTI 2011: Precise Time and Time Interval Systems and Applications Meeting