GNSS

System of Systems: Galileo birds active

August 23, 2016By
Galileo orbits viewed from above.

Galileo birds active Faulty launch victims still viable Europe’s fifth and sixth Galileo satellites, salvaged from their faulty 2014 Soyuz launch, will begin broadcasting working navigation signals for test purposes, for the benefit of receiver manufacturers, service providers and scientific researchers. The European Commission will decide later whether the two satellites will become part of the operational Galileo constellation. The... read more

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Pioneer in wavelet analysis receives Simons grant

August 22, 2016By
Mathematician Ingrid Daubechies, whose pioneering work enabled use of wavelet analysis in a variety of fields, including GNSS. (Image: Duke Today)

Ingrid Daubechies, a prominent mathematician whose pioneering work on wavelets is the foundation for various consumer products and GNSS applications, has received a $1.5 million grant from the Simons Foundation. Daubechies is the James B. Duke Professor of Mathematics and Electrical and Computer Engineering at Duke University in Durham, North Carolina. The Math + X Investigator award provides research funds to professors... read more

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CNES and Geoflex sign agreement on satellite positioning

August 22, 2016By

French Space Agency CNES has signed a cooperation agreement with the company Geoflex, granting it the right to spin off software developed by CNES that employs satellite precise point positioning (PPP) technology. Under the agreement, CNES is granting Geoflex a license to use its patented technologies in this field with a view to offering a global commercial operational service. This... read more

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Salvaged Galileo satellites to broadcast test signals

August 15, 2016By
Galileo_11_12_mission-O

News from the European Space Agency Europe’s fifth and sixth Galileo satellites, which were salvaged from their faulty launch into working orbits, are set to begin broadcasting working navigation signals for test purposes. This activation will allow satnav receiver manufacturers, service providers and scientific researchers to make use of these test signals. A decision on whether these satellites will become... read more

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Considering GPS III in light of a PNT wager

August 10, 2016By
SV 01 in testing at Lockheed Martin's Denver facility. (Photo: LMCO)

It was not a big wager as wagers go, but the underlying premise spoke volumes. It all began innocently enough in 2005 when the first test, or proof of concept, Galileo satellite known as GIOVE-A was launched. Who won the wager, and what can that tell us about GPS III? read more

Expert Opinions: OEM R&D budget for mitigation of jamming

August 8, 2016By

Q: What percent of a GNSS designer or manufacturer’s R&D budget should be devoted to mitigation of jamming? A: Solving for jamming, intentional or unintentional, in the design of any GNSS technology platform is no longer an option. How much any one company spends is largely a function of how much is spent on engineering overall and of how much... read more

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US Air Force releases GPS III-3 launch services RFP

August 4, 2016By
GPS-III-O

The Air Force has released a Request for Proposal (RFP) for launch services for the GPS III-3 mission, scheduled to launch in 2019. Proposals are due Sept. 19; the contract will be a standalone contract for a single GPS III launch. The United Launch Alliance (ULA) and SpaceX are expected to compete for the contract. In April, SpaceX was chosen to launch the... read more

Air Force upgrades to better field reference system for testing GPS denial

Non-GPS positioning system, White Sands North Range. X = transmitter site.

Can’t Deny the Truth: Defeating the Jamming Threat Initial Operational Capability for the Ultra High-Accuracy Reference System has been declared by the U.S. Air Force. Even when GPS is being completely jammed, UHARS provides extremely accurate positioning, navigation and time — more accurate than GPS — over the large area of White Sands Missile Range in New Mexico. Amid a... read more

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