Avionics News July 2023 - 28

industry
Taking GPS
for granted
STORY BY DAVID HUGHES
he U.S. government isn't good at tracking interference
with GPS signals, and an expert advisory
committee on precision, navigation and timing to the
government believes GPS is falling behind similar systems in
China and Europe.
T
In addition, many instances of serious GPS interference
have been reported, particularly to aircraft. There are well-established
techniques such as multi-element antennas that
would virtually eliminate the threat of such interference, but
the U.S. government does not allow manufacturers to produce
and sell them. Sadly, foreign (for example, Turkish) companies
are advertising and selling such " jam-proof " GPS sets,
but U.S. airlines and general aviation aircraft are prohibited
from installing or using them.
If these shortcomings are not corrected, it could affect not
only aviation users in the future but what is now one of the
keystones of the entire U.S. economy. For example, most of
the U.S. financial sector relies on timing from GPS to make
financial transactions run on time.
In a November report to the U.S. government, the National
Precision Navigation and Timing Advisory Board headed by
28 avionics news * july 2023
Thad Allen, a former U.S. Coast Guard commandant, stated:
" China's BeiDou system and the European Union's Galileo
surpass U.S. PNT (from GPS) in both resilience and capability.
China and other countries are gaining on the U.S. in PNT,
and the U.S. needs to expand PNT education. "
The PNTAB is comprised of 21 experts from various
industries and from academia, including Bradford Parkinson, a
Stanford University engineering professor emeritus known as
the father of GPS; John Betz, a MITRE fellow emeritus; Larry
James, deputy director of NASA JPL; Timothy A. Murphy, a
senior technical fellow at Boeing; Tom Powell, systems director
at the Aerospace Corporation; and Scott Burgett, director
of Garmin Health Engineering.
Parkinson was the chief architect of GPS as an Air Force
colonel in 1973 and the first director of the GPS Joint Program
Office. He directed all GPS development and commanded
the first satellite launches. He graduated from the U.S. Naval
Academy but transferred to the Air Force where it would be
easier to pursue graduate degrees, which soon included a Master
of Science in aeronautics and astronautics from MIT and a
Ph.D. in the same field from Stanford.

Avionics News July 2023

Table of Contents for the Digital Edition of Avionics News July 2023

Avionics News July 2023 - Intro
Avionics News July 2023 - Cover1
Avionics News July 2023 - Cover2
Avionics News July 2023 - 1
Avionics News July 2023 - 2
Avionics News July 2023 - 3
Avionics News July 2023 - 4
Avionics News July 2023 - 5
Avionics News July 2023 - 6
Avionics News July 2023 - 7
Avionics News July 2023 - 8
Avionics News July 2023 - 9
Avionics News July 2023 - 10
Avionics News July 2023 - 11
Avionics News July 2023 - 12
Avionics News July 2023 - 13
Avionics News July 2023 - 14
Avionics News July 2023 - 15
Avionics News July 2023 - 16
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Avionics News July 2023 - 18
Avionics News July 2023 - 19
Avionics News July 2023 - 20
Avionics News July 2023 - 21
Avionics News July 2023 - 22
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Avionics News July 2023 - 24
Avionics News July 2023 - 25
Avionics News July 2023 - 26
Avionics News July 2023 - 27
Avionics News July 2023 - 28
Avionics News July 2023 - 29
Avionics News July 2023 - 30
Avionics News July 2023 - 31
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Avionics News July 2023 - 33
Avionics News July 2023 - 34
Avionics News July 2023 - 35
Avionics News July 2023 - 36
Avionics News July 2023 - 37
Avionics News July 2023 - 38
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Avionics News July 2023 - Cover3
Avionics News July 2023 - Cover4
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