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November 26, 2007

EU Finance Ministers Approve Galileo Funds

At its November 23 meeting, the European Union’s Economic and Financial Affairs Council (ECONFIN) approved €940 million in supplementary funding during fiscal year 2008 to support a public procurement of the Galileo system.

Thinking Aloud • November/December 2007

GNSS Believer

Technology-agnostic. Now there’s an interesting term.

I first heard it from engineering staff at the Federal Communications Commission as they backpedaled away from a premature assumption that network-based solutions would meet the agency’s E911 mandate for wireless phones. After, that is, their assumption was confronted with a more accurate, more far-reaching GPS technology.

Working Papers • January/February 2006

GNSS Interoperability

Working Papers • May/June 2006

MBOC: The New Optimized Spreading Modulation

On June 26, 2004, the United States of America and the European Community (EC) established the “Agreement on the Promotion, Provision and Use of Galileo and GPS Satellite-Based Navigation Systems and Related Applications” (A copy of this agreement can be found at the website of the U.S. Space-Based Positioning, Navigation, and Timing (PNT) Executive Committee through the URL address provided in reference [1] in the “Additional Resources” section near the end of this article.)

Working Papers • April 2006

GNSS Meteorology on Moving Platforms

Although GNSS is primarily designed for positioning, navigation, and timing applications, it can also be used to determine a quantity that is of major interest for meteorologists and climate researchers, namely, integrated water vapor. This gas plays a critical role for the energy balance of our atmosphere and is actually responsible for approximately 62 percent of the natural greenhouse effect. Consequently, the distribution of water vapor, as well as its spatial and temporal behavior, is important for climate predictions and weather forecasts.

Working Papers • March 2006

Platforms for a Future GNSS Receiver

GNSS receiver technology has changed dramatically since the first reception of a GPS signal. It evolved from complex electrical circuits — partly analog — tracking only one satellite at a time to today’s sophisticated, small multichannel receivers. The core of a modern receiver is contained in one or more highly sophisticated chips that perform all the receiver’s tasks, starting with signal processing, followed by positioning, and often ending at application processing.

November 12, 2007

EU Finance Ministers, UK Parliamentary Body Debate Galileo Plan

On Tuesday (November 13) European Union (EU) finance ministers will address the European Commision (EC) proposal for all-public funding of the Galileo program.

The proposal announced by the EC in September would use the 2007 and 2008 budgetary reserves for agriculture and administration — totaling about €2.5 billion — to augment a €1-billion Galileo allocation already in place. European transport ministers will take up the issue again in December.

Inside GNSS • Fall 2007

Galileo: Redirecting a Stuttering Program

Europe’s Galileo program continues to struggle through a difficult passage as it looks ahead to crucial meetings of the European Union (EU) transport, economic, and heads of state meetings in November and December.

The lingering death last spring of the public-private partnership (PPP) approach to building Europe’s GNSS threw the program back into the political crucible that has always proven more arduous than the technical challenges.

Inside GNSS • Fall 2007

Say "Hello" to Galileo's PRS

GPS’s widespread success has increased the use of and reliance on positioning, navigation, and timing (PNT) technologies to support all kinds of civil applications. Among others, these include emergency operations, critical transport guidance, tracking of hazardous goods, and synchronization of radio communications and energy supply networks.

Inside GNSS • Fall 2007

Lightening the Data Processing Load

The last two decades have seen the evolution of increasingly sophisticated GNSS signal processing technology. These advances include such things as improved methods for acquiring and tracking a wide variety of new signal structures, advanced multipath mitigation techniques, the development of high-sensitivity receivers for reliable operation indoors and in urban canyons, high-speed processing to reduce time to first fix, and algorithms for improved ranging accuracy and attitude estimation.

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