A: System Categories

ESA’s Dordain Unapologetic about Galileo at Wide-Ranging Press Conference
January 23, 2014

ESA’s Dordain Unapologetic about Galileo at Wide-Ranging Press Conference

ESA Director General Jean-Jacques Dordain during his annual press briefing. ESA photo by S. Corvaja

Speaking at his annual press conference in Paris last Friday (January 17, 2014), European Space Agency (ESA) Director General Jean-Jacques Dordain was cool, collected and, importantly, positive, as he laid out plans and parried questions on a whole range of ESA issues. From the Rosetta mission to manned space flights, Swarm, Gaia, Sentinel and Copernicus, and of course Galileo, he set the stage for an ambitious 2014.

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By Inside GNSS
Canadian Army to Test NovAtel’s GAJT GPS Anti-Jam Antenna

Canadian Army to Test NovAtel’s GAJT GPS Anti-Jam Antenna

NovAtel GAJT GPS anti-jam antenna system

NovAtel has announced that Public Works and Government Services Canada (PWGSC) has selected the company’s GAJT-700ML antenna, a single-unit GPS anti-jam antenna system, for testing on Canadian Army armored vehicles. The testing is being conducted through PWGSC’s Build in Canada Innovation Program (BCIP).
 

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By Inside GNSS
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NovAtel Supplies Reference Receivers for IRNSS Ground Segment
January 22, 2014

NovAtel Supplies Reference Receivers for IRNSS Ground Segment

NovAtel G-III reference receiver

NovAtel Inc., has announced an agreement with the Indian Space Research Organisation (ISRO) to supply reference receiver products for use in the Indian Regional Navigation Satellite System (IRNSS) ground segment.

India-based Elcome Technologies Pvt. Limited, a sister company to NovAtel in the Hexagon Group of Companies, will provide local integration, training and technical support services for the NovAtel receivers.

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By Inside GNSS
Applanix Incorporates Trimble CenterPoint RTX GNSS Correction Service

Applanix Incorporates Trimble CenterPoint RTX GNSS Correction Service

Applanix Corporation announced that today (November 12, 2013) that the Trimble CenterPoint RTX correction service will be available across its entire airborne mapping portfolio. 

Trimble CenterPoint RTX correction service is a GPS-, GLONASS-, and QZSS-enabled correction service built on Trimble RTX technology that provides high-accuracy GNSS positioning without the use of traditional reference station-based differential RTK infrastructure.

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By Inside GNSS
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New BeiDou ICD Describes Second Civil Signal; Officials Describe Progress, Plans

New BeiDou ICD Describes Second Civil Signal; Officials Describe Progress, Plans

Ran Chengqi, director of the China Satellite Navigation Office

At a news media conference in Beijing on the first anniversary of the BeiDou Navigation Satellite System (BDS) declaration of full operational capability (FOC) for its regional service, officials reported on the current performance of China’s GNSS system.

The BDS program also released two new technical documents, including an updated interface control document (ICD) that describes the second civil signal, B2I, and a “BDS Open Service Performance Standard (version 1.0).”

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By Inside GNSS
GNSS Hotspots | January 2014

GNSS Hotspots | January 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. E-CROWDSHIPPING
Palo Alto, California USA

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By Inside GNSS
Won’t Get Fooled Again

Won’t Get Fooled Again

How many times, as some once-promising politician stumbles up against his pull date, have we heard that irreverent anthem of The Who invoked?

Thousands? Millions?

Yes, back in the wreckage of the second George Bush’s second term, Barack Obama looked pretty good by comparison. Even then, though, raising the banner of “Hope” before the eyes of a desperate nation was a risky thing to do.

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By Inside GNSS
Multi-GNSS Monitoring

Multi-GNSS Monitoring

Tim Springer, PosiTim UG

A common refrain in the world of GNSS is the desire for “interoperability,” the use of signals from multiple systems without a decline — and potentially even an improvement — in the quality of results.

Achieving this depends on large part in establishing comparable parameters — particularly the geodetic references and timing systems — among the GNSSs along with a dense network of ground reference stations that can provide continuous, precise monitoring of satellites’ orbital positions.

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By Inside GNSS
Ionospheric Scintillation
January 19, 2014

Ionospheric Scintillation

Ionospheric scintillations are rapid temporal fluctuations in both amplitude and phase of trans-ionospheric GNSS signals caused by the scattering of irregularities in the distribution of electrons encountered along the radio propagation path. The occurrence of scintillation has large day-to-day variability. The most severe scintillations are observed near the poles (at auroral latitudes) and near the equator (within ± 20 degrees of geomagnetic equator).

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By Inside GNSS
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