A: System Categories Archives - Page 103 of 199 - Inside GNSS - Global Navigation Satellite Systems Engineering, Policy, and Design

A: System Categories

EGNOS Service Provision Workshop 2014
August 5, 2014

EGNOS Service Provision Workshop 2014

The European Global Navigation Satellite Systems Agency (EGNOS) Service Provision Workshop will take place at the Conference Center Hotel Tivoli Lisboa in Lisbon, Portugal on October 7-8, 2014.

The yearly meeting will present the improvements in the system and services for EGNOS stakeholders, users and applications developers.

The workshop agenda includes:

EGNOS Program Update

  • EGNOS exploitation program update (GSA)
  • EGNOS market strategy and achievements (GSA)

EGNOS Services Status

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By Inside GNSS
GPS IIF-7 Successfully Launched; Signal Set Healthy
August 2, 2014

GPS IIF-7 Successfully Launched; Signal Set Healthy

[Updated September 18, 2014] The U.S. Air Force set GPS satellite SVN-68/PRN-09, launched on August 2, to healthy and usable last night (September 17, 2014). This brings the number of satellites transmitting the L2C signal to 14 and those transmitting the L5 signal to 07. The next GPS-IIF satellite, IIF-8/SVN-69, is tentatively scheduled for launch on Oct 29.

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By Inside GNSS
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AFRL ANGELS Take Flight with GPS On Board

AFRL ANGELS Take Flight with GPS On Board

Artist representation of ANGELS observing the AFSPC-4 Delta-4 upper stage several hundred kilometers above GEO. AFRL illustration

While the GNSS community waits for the scheduled launch on Friday (August 1, 2014) of the seventh GPS Block IIF satellite, the United Launch Alliance successfully lifted a three-satellite Air Force Space Command (AFSPC) payload into geosynchronous orbit on Monday (July 28, 2014) from Cape Canaveral Air Force Station, Florida.

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By Inside GNSS
Galileo Team Reports Successful Tracking of Encrypted Commercial Service Signals
July 30, 2014

Galileo Team Reports Successful Tracking of Encrypted Commercial Service Signals

The European GNSS Agency (GSA) announced today (July 29, 2014) that a recent 10-day test has successfully tracked and demodulated data from encrypted signals of the Commercial Service (CS) from available Galileo satellites.

Using receivers located in Tres Cantos, Spain, and Poing, Germany, the Early Proof of Concept (EPOC) team tracked encrypted Galileo E6-B and E6-C signals. Non-encrypted E6-B and E6-C signals have previously been tracked.

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By Inside GNSS
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The Next Big Mac
July 27, 2014

The Next Big Mac

Here’s the coolest “technology-meets-ingenuity-meets-sustainable-economics” story that I’ve heard in a long time: the International Sun-Earth Explorer-3 (ISEE-3) Reboot Project, a crowd-funded rescue mission to repurpose a 36-year-old NASA spacecraft.

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By Dee Ann Divis
GNSS Hotspots | July 2014
July 24, 2014

GNSS Hotspots | July 2014

One of 12 magnetograms recorded at Greenwich Observatory during the Great Geomagnetic Storm of 1859
1996 soccer game in the Midwest, (Rick Dikeman image)
Nouméa ground station after the flood
A pencil and a coffee cup show the size of NASA’s teeny tiny PhoneSat
Bonus Hotspot: Naro Tartaruga AUV
Pacific lamprey spawning (photo by Jeremy Monroe, Fresh Waters Illustrated)
“Return of the Bucentaurn to the Molo on Ascension Day”, by (Giovanni Antonio Canal) Canaletto
The U.S. Naval Observatory Alternate Master Clock at 2nd Space Operations Squadron, Schriever AFB in Colorado. This photo was taken in January, 2006 during the addition of a leap second. The USNO master clocks control GPS timing. They are accurate to within one second every 20 million years (Satellites are so picky! Humans, on the other hand, just want to know if we’re too late for lunch) USAF photo by A1C Jason Ridder.
Detail of Compass/ BeiDou2 system diagram
Hotspot 6: Beluga A300 600ST

1. SMART BALL
Portland, Oregon USA
√ Adidas has designed every official World Cup ball since 1970. And that’s not all! The Adidas Innovation Team in Portland, Oregon, spent 4 years on a smart soccer ball with a “six-axis MEMS accelerometer sensor package” that can detect speed, spin, strike and flight path data and whip it on over to the special GPS app on your iPhone. The app interprets the data for you, coaches you, and keeps a video to show your friends. On sale now for only $299.

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By Inside GNSS
GNSS & Geohazards
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.

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By Inside GNSS
New Leaders at the GPS Helm

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.

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By Dee Ann Divis
GNSS Position Estimates

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.

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By Inside GNSS
Environmental Sensing

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.

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By Inside GNSS
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