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Per Enge is a Professor of Aeronautics and Astronautics at
Stanford University, where he is the Kleiner-Perkins, Mayfield,
Sequoia Capital Professor in the School of Engineering. He
directs the GPS Research Laboratory, which develops satellite
navigation systems based on the Global Positioning System
(GPS). These navigation systems augment GPS to improve accuracy
and provide real time error bounds. In addition, the laboratory
is developing a suite of technologies to mitigate the navigator's
vulnerability to radio frequency interference. The laboratory
has pioneered two such systems that are now operational. The
first system uses a network of medium frequency radiobeacons
to broadcast differential GPS corrections to maritime and
land users. This system was developed for the U.S. Coast Guard,
and today it covers much of the world's coastline and an increasing
inland area. It provides differential GPS data to approximately
1.5 million users. The second is the Wide Area Augmentation
System (WAAS) that was developed for the FAA. WAAS already
serves millions of users, and became operational for aircraft
in 2003. The laboratory is currently working on auto-land
systems based on GPS. Foremost amongst these is the Local Area Augmentation
System (LAAS) which supports larger airplanes at
high-traffic hub airports. Per has
received the Kepler, Thurlow and Burka Awards from the Institute
of Navigation (ION) for his work. He is also a Member of
the National Academy of Engineering as well as a Fellow
of both the ION and the Institute of Electrical and Electronics
Engineers (IEEE). He received his PhD from the University
of Illinois in 1983, where he designed a direct-sequence multiple-access
communication system that provided an orthogonal signal set
to each user.
Per Enge and Pratap Misra have written the textbook
"Global
Positioning System: Signals, Measurements and
Performance" which is designed to provide a
comprehensive introduction to GPS. Per Enge is an advisor
to several technology companies including
Atheros and
EveryTrail.
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