GNSS

Galileo declares Initial Services

December 15, 2016By

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

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

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

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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Directions 2017: The year of Galileo

December 9, 2016By

I write at an especially exciting moment for the Galileo satellite navigation system, as two flagship European programmes combine for the very first time. Mid-November will see the very first Galileo launch using an Ariane 5 launcher from Europe’s Spaceport in French Guiana, in place of the Soyuz that has served the constellation up until now. Four instead of two... read more

2 Galileo satellites join constellation

December 8, 2016By

Galileo satellites 13 and 14 have begun transmitting navigation signals as fully operational members of the constellation. The pair were launched from Europe’s Spaceport in French Guiana on May 24. After launch and maneuvers to reach their final orbital altitude, their navigation and search-and-rescue payloads were methodically switched on and checked out. Their performance was assessed in relation to the... read more