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  2. GLONASS - Wikipedia

    en.wikipedia.org/wiki/GLONASS

    Glonass-M satellites produced since 2014 (s/n 755+) will also transmit L3OC signal for testing purposes. Enhanced Glonass-K1 and Glonass-K2 satellites, to be launched from 2023, will feature a full suite of modernized CDMA signals in the existing L1 and L2 bands, which includes L1SC, L1OC, L2SC, and L2OC, as well as the L3OC signal. Glonass-K2 ...

  3. Satellite navigation - Wikipedia

    en.wikipedia.org/wiki/Satellite_navigation

    GNSS systems that provide enhanced accuracy and integrity monitoring usable for civil navigation are classified as follows: [5] GNSS-1 is the first generation system and is the combination of existing satellite navigation systems (GPS and GLONASS), with Satellite Based Augmentation Systems (SBAS) or Ground Based Augmentation Systems (GBAS). [5]

  4. Satellite navigation device - Wikipedia

    en.wikipedia.org/wiki/Satellite_navigation_device

    Vehicle navigation on a personal navigation assistant Garmin eTrex10 edition handheld. A satellite navigation device or satnav device, also known as a satellite navigation receiver or satnav receiver or simply a GPS device, is a user equipment that uses satellites of the Global Positioning System (GPS) or similar global navigation satellite systems (GNSS).

  5. Galileo (satellite navigation) - Wikipedia

    en.wikipedia.org/wiki/Galileo_(satellite_navigation)

    Galileo Control Centre at the DLR Oberpfaffenhofen site Galileo In-Orbit Test (IOT) L-band (1,000 – 2,000 MHz) antenna at ESTRACK Redu Station. The system's orbit and signal accuracy is controlled by a ground segment consisting of: Two ground control centres, located in Oberpfaffenhofen and Fucino for Satellite and Mission Control

  6. List of GPS satellites - Wikipedia

    en.wikipedia.org/wiki/List_of_GPS_satellites

    Samples of three GPS satellites' orbits over a five-year period (2013 to 2018) USA-242 · USA-239 · USA-151 · Earth As of 19 December 2024, 83 Global Positioning System navigation satellites have been built: 30 are launched and operational, 1 is launched and undergoing the commissioning process, 3 are in reserve or testing, 43 are retired, 2 were lost during launch, and 1 prototype was never ...

  7. GNSS applications - Wikipedia

    en.wikipedia.org/wiki/GNSS_applications

    Global Navigation Satellite System (GNSS) receivers, using the GPS, GLONASS, Galileo or BeiDou system, are used in many applications. The first systems were developed in the 20th century, mainly to help military personnel find their way, but location awareness soon found many civilian applications.

  8. GPS signals - Wikipedia

    en.wikipedia.org/wiki/GPS_signals

    This allows better interoperability with other global time-transfer systems, such as Galileo and GLONASS, both of which are supported. The extra bandwidth enables the inclusion of a packet for differential correction, to be used in a similar manner to satellite based augmentation systems and which can be used to correct the L1 NAV clock data.

  9. List of GLONASS satellites - Wikipedia

    en.wikipedia.org/wiki/List_of_GLONASS_satellites

    A model of a GLONASS-K satellite displayed at CeBit 2011 As of August 2023 [update] , 145 GLONASS navigation satellites have been launched, of which 133 reached the correct orbit and 24 are currently operational.

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