A: System Categories Archives - Page 133 of 228 - Inside GNSS - Global Navigation Satellite Systems Engineering, Policy, and Design

July 21, 2014

GNSS & Geohazards

Ken Hudnut, U.S. Geological Survey

For at least two decades, GPS experts, geodesists, and public agencies have been working together to develop high-accuracy, large-scale continuously operating GPS reference stations that provide them the capability to monitor and model crustal deformation, tectonic plate movement, and the effects of geohazards such as earthquakes and volcanic eruptions.

Now, GNSS-augmented advance warning systems are going into place that can give us a crucial margin of safety in the event of an earthquake.

And none too soon.

By Inside GNSS

New Leaders at the GPS Helm

Washington, D.C., has a peculiarity of seasons. While most of the world marks the shifts between winter and spring, summer and autumn, the politicos on the streets of the U.S. capital count the passage of time in two-year increments.

New operatives and appointees flock to the centers of power in the early days of each administration and the opening of each Congress, then migrate to friendlier climes as congressional elections loom and the administration winds down — as it is now.

By Dee Ann Divis

GNSS Position Estimates

Q: How do measurement errors propagate into GNSS position estimates?

A: Not surprisingly, GNSS positioning accuracy is largely dependent on the level of measurement errors induced by orbital inaccuracies, atmospheric effects, multipath, and noise. This article discusses how, specifically, these errors manifest as position errors.

By Inside GNSS

Environmental Sensing

In the past 20 years GPS has simultaneously revolutionized both our modern infrastructure (by providing real-time navigation, mapping, and timing support) and our geodetic/surveying capabilities (by providing millimeter/centimeter-level positioning). At this point, most of the GNSS innovations we expect to see in the next decade will come from calculating positions more accurately and faster, while expanding from GPS to use of all available GNSS signals.

By Inside GNSS

GPS Receiver Performance On Board a LEO Satellite

Equation 1

The small satellite “Technologie-Erprobungs-Träger 1” (TET-1) is the first spacecraft developed for the German Aerospace Center (DLR) On-Orbit-Verification (OOV) program, which provides flight opportunities dedicated to testing and qualification of new technologies in space. The satellite was lifted into a low-Earth orbit (LEO) on July 22, 2012, from the launch site in Baikonur, Kazakhstan.

By Inside GNSS

2nd EUROGI imaGIne Conference 2014

The 2nd EUROGI imaGIne Conference 2014 will be held at Messe Berlin, Berlin, Germany on October 8-9, 2014.

This year’s theme is “Geographic Information Expertise: Made in Europe”.

The key aim of the imaGIne conference is to showcase the best Europe has to offer in the GI field. The INTERGEO Fair will showcase a wide variety of GI related products and services.

Program highlights:

By Inside GNSS

American Meteorological Society: 12th Conference on Space Weather

The 12th Conference on Space Weather, sponsored by the American Meteorological Society, and organized by the AMS Committee on Space Weather, will be held 4–8 January 2015, as part of the 95th AMS Annual Meeting in Phoenix, Arizona.

Abstract Submission deadline is August 1, 2014.

By Inside GNSS

ITSC 2014: 17th International IEEE Conference on Intelligent Transportation Systems

The IEEE Conference on Intelligent Transportation Systems (ITSC 2014) will take place at the Hyatt Regency Qingdao in Qingdao, China on October 8-11, 2014.

The annual flagship conference of the IEEE Intelligent Transportation Systems Society, IEEE ITSC 2014 welcomes articles in the field of Intelligent Transportation Systems, conveying new developments in theory, analytical and numerical simulation and modeling, experimentation, advanced deployment and case studies, results of laboratory or field operational tests.

Special sessions:

By Inside GNSS

ITS America 2014: 21st World Congress on Intelligent Transport Systems

The Intelligent Transportation Society of America (ITS America) will host the 21st World Congress on Intelligent Transport Systems from September 7-11, 2014 at the Cobo Center in Detroit, Michigan.

This year’s theme is “Reinventing Transportation in our Connected World”.

By Inside GNSS

July 20, 2014

U.S. Geological Survey Releases New National Seismic Maps

Students conduct the “drop, cover, hold on” safety procedure during an earthquake preparedness drill. Photo Credit: Jessica Robertson, USGS

Updated National Seismic Hazard Maps released by the U.S. Geological Survey (USGS) on Thursday (July 17, 2014) indicate a higher level of earthquake risk for the West Coast and some areas of the Midwest and East Coast then previously thought.

By Inside GNSS

July 17, 2014

NovAtel Launches CORRECT with TerraStar PPP Promotion

Typical precise point positioning (PPP) system design

NovAtel Inc. has announced a promotion for existing customers for the company’s recently launched NovAtel CORRECT with TerraStar PPP subscription service.

Customers using NovAtel legacy equipment (OEMV generation receivers or earlier) or NovAtel’s current OEM6 technology qualify for the following offers:
• Trade in legacy NovAtel hardware for a FlexPak6, antenna, and one-year TerraStar subscription for $4,995.

By Inside GNSS

July 16, 2014

Companies Step into GPS III Competition as Air Force Weighs Broader Changes

As the Air Force contemplates changing its GPS III prime contractor in the face of program delays, sources say it is also weighing much broader program changes to help it weather years of continued lean budgets.

By Inside GNSS

Communications Act Rewrite Could Adversely Affect GPS Community

Two powerful lawmakers are weighing rewriting the rules for the way frequencies are allocated as part of an overhaul of the nation’s telecommunications laws. The effort, which is likely to see legislation drafted next year, is considering options such as flexible licensing and receiver standards that could directly affect the GPS community.

By Inside GNSS

A: System Categories

The Next Big Mac...

GNSS Hotspots | July 2014...

GNSS & Geohazards

New Leaders at the GPS Helm

GNSS Position Estimates

Environmental Sensing

GPS Receiver Performance On Board a LEO Satellite

2nd EUROGI imaGIne Conference 2014

American Meteorological Society: 12th Conference on Space Weather

ITSC 2014: 17th International IEEE Conference on Intelligent Transportation Systems

ITS America 2014: 21st World Congress on Intelligent Transport Systems

U.S. Geological Survey Releases New National Seismic Maps

NovAtel Launches CORRECT with TerraStar PPP Promotion

Companies Step into GPS III Competition as Air Force Weighs Broader Changes

Communications Act Rewrite Could Adversely Affect GPS Community