GNSS

GNSS CEOs see bright future, alternative PNT promises well

December 28, 2016By
foursquare

It has been a good year for all global navigation satellite systems (GNSS), as the chief executives of each system testify here. Alternative positioning, navigation and timing (PNT) also thrives. In this roundup of the latest highlights from the past year and forecasts for the future, 2017 augurs very well indeed! Let’s look at the newest alternative-PNT offerings first, followed... read more

New defense signals offered, new defense editor sought

December 20, 2016By
Iridium satellite, courtesy of Iridium.

Two important new signals — or rather, one signal and one group of signals — became available for military users worldwide last week. Satelles made an exciting announcement of what amounts to a new dimension in satnav: a whole new constellation in low-Earth orbit, bringing global coverage and most critically, a signal strength hitherto unknown to GNSS users. The satellite... read more

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Galileo declares Initial Services

December 15, 2016By
Maroš Šefčovič, à gauche, et Elżbieta Bieńkowska

At a Dec. 15 ceremony in Brussels titled “Galileo Goes Live,” two high officials of the European Commission issued the Galileo Initial Services Declaration. The Declaration of Initial Services means that the Galileo satellites and ground infrastructure are now operationally ready. These signals will be highly accurate but not available all the time, since the constellation is not yet complete... read more

Orolia fortifies resilient PNT with Satelles satellite time and location signal

December 15, 2016By
Iridium satellite, courtesy of Iridium.

A strategic alliance announced on Dec. 15 between Orolia and Satelles includes product development and go-to-market activities of positioning, navigation and timing (PNT) solutions provided by the Iridium satellite constellation, independent of GPS/GNSS signals. The companies intend to provide PNT solutions to military, defense, government and commercial customers worldwide. Orolia, the parent of GNSS-active companies Spectracom and Spectratime, among others,... read more

NASA launches micro satellites with GNSS receivers for remote weather sensing

December 15, 2016By
Once the deployment module on the Orbital ATK Pegasus XL launch vehicle reaches its final altitude of approximately 510 kilometers above the Earth’s surface, the eight CYGNSS microsatellite observatories will be deployed in opposing pairs over a two minute period. (Image credit: University of Michigan)

Surrey Satellite Technology’s Space GNSS Receiver Remote Sensing Instrument (SGR-ReSI) is the primary payload onboard NASA’s CYGNSS constellation, launched today, Dec. 15, from Cape Canaveral Air Force Station in Florida. The Cyclone Global Navigation Satellite System (CYGNSS) mission is part of the NASA Earth System Science Pathfinder Program that aims to improve extreme weather prediction by studying how tropical cyclones... read more

US Air Force approves Lockheed’s ground control upgrade for GPS III

December 15, 2016By
GPSIII-200x150

The U.S. Air Force approved Lockheed Martin’s design to upgrade the current GPS satellite ground control system with new capabilities that will enable it to operate more powerful and accurate GPS III satellites. The successful Critical Design Review (CDR) for the Contingency Operations (COps) contract, completed on Nov. 17, gives Lockheed Martin a green light to proceed with software development... read more

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New GLONASS interface control documents released

December 14, 2016By

Russian Space Systems has released draft versions of the GLONASS interface control documents (ICD) for the future code division multiple access (CDMA) signals in the L1, L2 and L3 bands. Parameters of the subsystem interfaces between the spacecraft and GLONASS navigation consumer equipment are determined by the GLONASS Interface Control Document. The ICD is only available in Russian, but an... read more

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Expert Opinions: Projection of 2017 PNT developments

December 12, 2016By

Q: What significant new developments in positioning, navigation or timing can we anticipate in 2017? A: With increasing focus on robust and resilient positioning, navigation and timing (PNT), the industry must respond with improved access to accurate and trusted position and timing, particularly for the warfighter. For military vehicles, this translates to a requirement for improved navigation systems that will... read more

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