Local area augmentation system (LAAS)

Definitions

• A differential global positioning system (DGPS) that improves the accuracy of the system by determining position error from the GPS satellites, then transmitting the error, or corrective factors, to the airborne GPS receiver.
• LAAS further increases the accuracy of GPS and improves signal integrity warnings.

References

• Instrument Flying Handbook, Federal Aviation Administration, 2014
• Instrument Procedures Handbook, Federal Aviation Administration, 2017