B: Applications Archives - Page 120 of 182 - Inside GNSS - Global Navigation Satellite Systems Engineering, Policy, and Design

May 24, 2016

Successful Launch Continues Build-Out of Galileo Constellation

The European GNSS program added two more spacecraft to its constellation this morning (May 24, 2016) with the launch of Galileo satellites 13 and 14. They lifted off together at 08:48 GMT (10:48 CEST, 05:48 local time) atop a Soyuz rocket from French Guiana.

This seventh Galileo launch went by the book: the first three Soyuz stages placed the satellites safely into low orbit, after which their Fregat upper stage hauled them the rest of the way into their target medium-altitude orbit in plane A, slots 2 and 6.

By Inside GNSS

RIN INC 2016: Royal Institute of Navigation International Navigation Conference

Main auditorium, Strathclyde Conference Centre

The Royal Institute of Navigation’s International Navigation Conference 2016 will be held at the University of Strathclyde Conference Centre in Glasgow, Scotland from November 8 – 10, 2016.

A number of keynote speakers will discuss topics from Virgin Galactic’s voyage to space to quantum sensors for inertial navigation to autonomous cars, android phones, train control and even "Three dimensional thinking: from rats to humans, via Klingons."

Poster and demonstration abstracts are due by May 30. Full paper submission is due on June 15.

By Inside GNSS

May 23, 2016

Alessandra Fiumara

Alessandra Fiumara is the liaison officer on GNSS Evolution Program for the European Space Agency.

She has been working in the space sector for 25 years, both in public and private contexts, and has acquired a deep knowledge of the related political, strategic and financial aspects. As an electronic engineer, she started with technical and scientific activities in the radar application domain, then moved to strategic planning and financial control responsibilities as well as international relations.

By Inside GNSS

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May 21, 2016

NovAtel Raises Concerns about Ligado Test Methodology, Results

NovAtel Inc. has submitted comments to the Federal Communications Commission (FCC) regarding Ligado Networks LLC’s (formerly New LightSquared LLC) License Modification Applications in which the company raises deep concerns about the testing methodology used and conclusions presented by Ligado regarding the impact of their proposed usage of L-band frequencies for a terrestrial wireless network.

By Inside GNSS

May 19, 2016

Re-Baseline This!

So, if everything had gone as planned, we would have a new ground control segment (OCX) operating a new generation of satellites (GPS III) as they launch into an expanded constellation in support of modernized military GPS user equipment (MGUE).

But then the best-laid plans. . . .

By Inside GNSS

The “Brussels View” from Prague

Carlo des Dorides, GSA Executive Director

Last October, the European GNSS Agency (GSA) Administrative Board reelected Carlo des Dorides as executive director of the GSA, giving him a second — and final — four-year term in charge of this key agency responsible for supporting the effective operation, maintenance, and security of Europe’s satellite navigation systems. We met with him recently at the GSA office in Prague to learn how he plans to see out his mandate.

By Peter Gutierrez

Military GPS Receiver Advances Could Help Trim Satellite Costs

Advanced military receivers using the sort of modern multi-channel, multi-constellation capabilities already available commercially, could enable the Air Force to focus its anti-jam efforts on the ground, simplifying future GPS satellites and lowering their cost. Moreover, experts told Inside GNSS, the cutting-edge receivers could be deployed years before the anti-jam capability planned for the new GPS III satellites would be fully available.

By Dee Ann Divis

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Inter-Signal Correction Sensitivity Analysis

Symbols and Acronyms

Modernized GPS satellites give civil users the ability to achieve dual L1/L2 PY accuracy using dual L1CA/L2C ionosphere-free measurements and, with IIF satellites, dual L1/L5 signals. Because broadcast GPS ephemeris data is based on an ionosphere-free pseudorange calculated from dual L1PY/L2PY measurements and the civil signals are not all perfectly aligned to it, new broadcast parameters and a new modernized dual-frequency algorithm are needed in order to align new signals with the dual L1/L2 PY signal.

By Inside GNSS

Boubeker Belabbas: At Home in the World

Belabbas with his children, Laila and Lunis.

Boubeker Belabbas’ Compass Points

Boubeker Belabbas, an expert in aerospace mechanics and safety-critical GNSS applications, grew up in Bordeaux, a city of wine, and works in Munich, a city of beer. But he started out in the land of mint tea: a small village in the north of Algeria in the region called Kabylia.

By Inside GNSS

Listening for RF Noise

GNSS signals are vulnerable to interference due to being extremely weak when received on Earth’s surface. Therefore, even a low-power interference signal can easily disrupt the operation of commercial GNSS receivers within a range of several kilometers.

By Inside GNSS

GNSS Evolutions for Maritime

Trends for marine accidents show rising numbers and costs that are mainly associated with collisions and groundings. Research indicates that about 60 percent of these accidents are caused by human error. The majority of them could have been avoided by providing suitable input to the navigation decision-making process, according to a 2008 report by the International Maritime Organization (IMO) Marine Safety Committee. (See IMO 2008 in Additional Resources section near the end of this article.).

By Günter W. Hein

May 17, 2016

Wireless Broadband Aspirant’s Own GPS Receiver Tests Show Signal Impact

The results from the GPS receiver testing sponsored by would-be wireless broadband provider Ligado are in. A review of the nearly 600 pages of data and analysis suggests that a number of GPS receivers can — by the firm’s chosen, but somewhat controversial technical standard — operate in the presence of the company’s proposed wireless signals.

By Inside GNSS

New Engineering Team at NovAtel Focuses on Positioning Technology for Autonomous Vehicles

NovAtel Inc. announced today (May 17, 2016) a new corporate initiative to develop functionally safe GNSS positioning technology for fully autonomous applications.

A provider of high-precision GNSS products for more than 20 years, NovAtel is leveraging its extensive experience developing safety-critical systems for the aviation industry to meet the future safety thresholds required for driverless cars and autonomous applications in agriculture, mining, and other government, military and commercial markets.

By Inside GNSS

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B: Applications

Table 2: GNSS Evolutions for Maritime...

Table 1, Figure 2: GNSS Evolutions for Maritime...

Successful Launch Continues Build-Out of Galileo Constellation

RIN INC 2016: Royal Institute of Navigation International Navigation Conference

Alessandra Fiumara

NovAtel Raises Concerns about Ligado Test Methodology, Results

Re-Baseline This!

The “Brussels View” from Prague

Military GPS Receiver Advances Could Help Trim Satellite Costs

Inter-Signal Correction Sensitivity Analysis

Boubeker Belabbas: At Home in the World

Listening for RF Noise

GNSS Evolutions for Maritime

Wireless Broadband Aspirant’s Own GPS Receiver Tests Show Signal Impact

New Engineering Team at NovAtel Focuses on Positioning Technology for Autonomous Vehicles