GLONASS


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GLONASS

[′glō‚nas]
(navigation)
A worldwide Russian navigation system designed to use 24 satellites in three uniformly spaced orbital planes to provide three-dimensional position and velocity data to equipped users on or above the earth's surface. Acronym for global orbiting navigation satellite system.

GLONASS

(GLObal NAvigation Satellite System-GLObalnaya NAvigatsionnaya Sputnikovaya Sistema) A satellite-based radio navigation system run by the Russian Ministry of Defense. It uses 21 MEO satellites and three spares. Similar to the global positioning system (GPS) in the U.S., GLONASS enables 3D positioning anywhere on earth within 100-150 meters for the public and 10-20 meters for the military. The first satellite was launched in 1982, and the system became operational in 1993, although the full complement of satellites was not completed until 1995. See GPS, Galileo and GNSS.
References in periodicals archive ?
Besides the applications in positioning, GNSS has also been demonstrated as an efficient tool in atmosphere studies, and the first attempt in GLONASS troposphere modeling can be found in the work of Dousa (2010).
Like GPS, the complete nominal GLONASS constellation consists of 24 satellites; 21 broadcasting satellites, and three on-orbit spares.
Agilent's Advanced Galileo software supports these development efforts by allowing engineers to generate signals that simulate Galileo satellites or a combination of Galileo, GPS and/or GLONASS satellites.
The SH0319D/E/W family of antennas provides wireless signal reception ranging from dual-bands to multi-bands covering GPS, GLONASS, WLAN/dual-band WIFI, and GSM900/1800.
Nevertheless, the mixture of the observed GLONASS frequencies are used for calibration and this method allows frequency-dependent GLONASS PCV to be determined.
The main differentiator of SDCM with respect to other SBAS systems is that it is conceived as an SBAS augmentation that would perform integrity monitoring of both GPS and GLONASS satellites, whereas the rest of current SBAS initiatives provide corrections and integrity just to GPS satellites.
This enhanced version of the SSU 2000 will be the first in a series of forthcoming Symmetricom products that include GLONASS capabilities.
According to Qualcomm, adding GLONASS improves GPS accuracy in "deep urban environments" by 50 percent.
In 2004, the Russian Space Agency announced a joint venture with ISRO to collaborate on GLONASS.
The acquisition will help Sistema provide support to network operator Navigation Information Systems (NIS) to create the emergency response ERA GLONASS under a public-private project.
Three areas of immediate mutual interest, highlighted in January 2003 during the EU-Russia seminar in Moscow, were examined: Galileo and GLONASS (satellite positioning systems), launchers and the EU Global Monitoring for the Environment and Security (GMES) satellite programme, which covers areas such as environmental protection, global change, sustainable development, humanitarian aid, conflict prevention and crisis management.