GNSS

Russia to Launch Two GLONASS Satellites After Proton Disaster

July 17, 2013By

Ria Novosti reports that Russia will launch two GLONASS navigation satellites later this year to make up for the loss of three satellites in the recent Proton rocket explosion after launch from the Baikonur space center in Kazakhstan, according to a senior space industry official. “We are planning to launch two satellites from the Plesetsk space center [in northern Russia]... read more

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Rohde & Schwarz GNSS Simulator Creates Real-World Scenarios

July 15, 2013By
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Rohde & Schwarz provides developers of satellite-based navigation instruments with a global navigation satellite system (GNSS) simulator, which runs on the R&S SMBV100A vector signal generator. The new R&S SMBV-K101 option allows developers in the automotive and wireless communications industries, for example, to test GNSS receivers for specific effects such as obscuration and multipath propagation. Buildings, tunnels and bridges as... read more

Lockheed Martin Delivers Antenna Assemblies for First GPS III Satellite

July 15, 2013By
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Lockheed Martin has completed and is preparing to install the navigation, communication, and hosted payload antenna assemblies for the first satellite of the next-generation GPS III. Seven antenna assemblies, produced at Lockheed Martin’s Newtown, Pennsylania, facility were delivered to the company’s GPS III Processing Facility (GPF) near Denver, Colorado, on June 14.  The antennas will be installed on the first... read more

Galileo Spreads Its Wings in Pre-Flight Test

July 11, 2013By
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In the photo above, deployment of the solar wings on the latest Galileo satellite is being checked at the European Space Agency’s technical hub in the Netherlands. The navigation satellite’s pair of 1 x 5-meter solar wings, carrying more than 2,500 gallium arsenide solar cells, will power the satellite during its 12-year working life. With the first four Galileo In-Orbit... read more

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IRNSS-1A Reaches Preliminary Destination Orbit

July 11, 2013By

News courtesy of CANSPACE listserv. Following the July 1 launch of the Indian Regional Navigation Satellite System 1A satellite, five orbit maneuvers were to be conducted by the master control facility to position the satellite in its circular inclined geosynchronous orbit (IGSO) with an equator crossing at 55 degrees east longitude. Reports indicate that orbit raising maneuvers have been completed with... read more

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Lockheed Martin GPS III Prototype Validates Test Facilities

July 10, 2013By
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Lockheed Martin’s GPS III Non-Flight Satellite Testbed (GNST) has successfully completed a series of high-fidelity pathfinding events which validate the process and facility for vehicle integration checkout, as well as signals interference testing, that the next-generation satellites of GPS III will go through before delivery for launch. An innovative investment by U.S. Air Force under the original GPS III development... read more

2C or Not 2C: The First Live Broadcast of GPS CNAV Messages

July 8, 2013By

By Oliver Montenbruck, Richard B. Langley, and Peter Steigenberger Over the past several years, some users of the GPS navigation system have already benefitted from the addition of various new signals in addition to the legacy C/A- and P(Y)-code. With the introduction of the Block IIR-M satellites in 2005, a new civil signal (L2C) was transmitted on the L2 frequency,... read more

Experts Meet to Standardize Satellite Augmentation Systems

July 3, 2013By
The GPS global satellite navigation system has an accuracy of 5–10 m. Across our continent that accuracy is greatly sharpened to 1-2 m through the European Geostationary Navigation Overlay Service (EGNOS), an operational precursor to Europe’s coming Galileo global satnav system. EGNOS broadcasts augmented information through a trio of geostationary satellites linked to a network of monitoring ground stations.

More than 30 specialists overseeing the world’s five satellite navigation augmentation systems gathered in Russia last week, planning for a high-performance future with many more navigation satellites in orbit, reports the European Space Agency. The Satellite-Based Augmentation Systems (SBAS) Interoperability Working Group was hosted June 25–27 in St. Petersburg by Russia’s Roscosmos space agency and the Russian Academy of Sciences.... read more

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