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1
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- ADV132 GPS and Electronic Navigation
- Washington County Community College
- Scott Fraser
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|
2
|
- Selective Availability
- Differential GPS
- WAAS (Wide Area Augmentation System)
|
|
3
|
- DOD downgraded accuracy of system when made available for civilian use
- “National security”
- Reduced accuracy of Course Acquisition code from 15 m to 100m
- Removed in May 2000
- May be restored at any time
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|
4
|
|
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5
|
|
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6
|
- Being Developed by FAA & USDOT
- 25 Ground Monitoring Stations
- Uplink Transmitters
- 2 Geostationary Satellites
- Accuracy of DGPS across entire continent/world
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Notes
