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ranging and integrity monitor station (GPS) (RIMS)

The navigation-based satellite systems used to increase positioning accuracy, the Wide Area Augmentation System( WAAS) of the Americans, the European Geostationary Overlay Service( EGNOS) of the Europeans and the Multi-Functional Satellite Augmentation System( MSAS) of the Asians, use several geostationary satellites and various receiving stations on the ground to calculate the correction signals. The receiving stations are also referred to as Ranging and Integrity Monitor Stations (RIMS).

In order to perform an accurate correction signal calculation, the position of the RIMS must be known to within a few centimeters. For example, Egnos uses 34 RIMS, while the Wide Area Augmentation System (WAAS) uses 25.

The receiving stations receive navigation signals from the GPS system navigation satellites, Glonass and Galileo. Based on the exact position and the received positioning signal, the receiving station calculates a correction signal from the difference. In addition, the receiving station calculates the errors due to ionospheric disturbances from the signal delay of both GPS frequencies.

The correction data of all RIMS are calculated in the central computer center to various short and long term errors.

Informations:
Englisch: ranging and integrity monitor station (GPS) - RIMS
Updated at: 19.09.2011
#Words: 174
Links: navigation (NAV), satellite, positioning, accuracy, wide area application service (storage concept) (WAAS)
Translations: DE
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