Global Navigation Satellite Systems (GNSS)

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Author:
mardiellen
ID:
198336
Filename:
Global Navigation Satellite Systems (GNSS)
Updated:
2013-02-06 04:38:58
Tags:
Global Navigation Satellite Systems GNSS
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Description:
Global Navigation Satellite Systems (GNSS)
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  1. Theory of GNSS
    It is a real time, all weather, 24hr, worldwide, 3 dimensional positioning system.
  2. How many satellites and required to obtain a GNSS fix & why
    4 or more satellites are required. This is so a latitude, longitude, height, & time-based error can be obtained to provide a position as accurately as possible.
  3. GNSS Satellite signals
    are precise microwave signals of transmitted data waves from space vehicles.
  4. 3 main categories of GNSS errors
    Satellite Errors- Clock error, Orbit error

    Atmospheric Error- Ionospheric error, Tropospheric error

    Receiver Error- Clock error, Station co-ordinate error

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