900 Merrill Field Drive
Anchorage, AK 99501
Tel: 907-258-2372 Fax: 907-258-2328
www.ads-b.com
Presenter: Skip Nelson, skip@ads-b.com
USE AND DISCLOSURE OF DATA:
This presentation contains information that is proprietary to, and the property of ADS-B
Technologies, LLC and shall not be duplicated, used or disclosed, in whole or part, for any
purpose other than to evaluate its content without the express written permission of
ADS-B Technologies, LLC. This restriction does not limit the Original Recipients right to
use information contained in this presentation internally within its own organization, or if
it is obtained from another source without restriction.
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ADS-B Link Augmentation System
This is definitely not RADAR country
But if we can provide reliable Surveillance Services
here, then we can provide them virtually
ANYWHERE
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ADS-B Link Augmentation System
Theres a very good reason why ALASKA has
always been on the cutting edge of Aviation
Innovation
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ADS-B Link Augmentation System
Automatic Dependent Surveillance Broadcast
ADS-B
The most significant advancement in Air Traffic Control
technology, since the introduction of RADAR, more than
fifty years ago
Jane Garvey, FAA Administrator, 2001
The United States is committed to an ADS-B based
National Airspace System. The transition will begin in
2008 and avionics equipage will be mandatory for all
aircraft operating in Controlled Airspace by 2015.
Marion Blakey, FAA Administrator, 2006
ADS-B Link Augmentation System
What is ADS-B ?
ADS-B is radically new technology that is redefining the paradigm of
COMMUNICATIONS - NAVIGATION - SURVEILLANCE in Air Traffic
Management today.
ADS-B
Automatic Always ON No operator attention is required
Dependent It relies on very accurate GNSS position data
Surveillance Provides aircraft position, altitude, speed, heading ,
identification and other data
Broadcast It does not require interrogation, or triggering by
other stations data is broadcast to any aircraft or
ground station equipped to receive the data link signal
ADS-B Link Augmentation System
INTERNATIONAL APPROVALS
ADS-B Link Augmentation System
RADAR
Typically, surveillance radar sends
a signal that causes the aircrafts
transponder to reply and provide
its position.
Most Radar antennas revolve at a rate
Of ~5 RPM, therefore the time between
Signal returns is ~ 12 sec. For an aircraft flying
at 500 Kts, this means that the aircraft can
move ~ 0.6 Nm between returns.
ADS-B
ADS-B transmits a position and
state payload each second and
requires no triggering, or
interrogation from the ground
station
For an aircraft flying at 500 Kts, this
means that the aircraft moves only 0.13
Nm between returns.
RADAR
Radar is a radial technology that
can be attenuated by atmospheric
conditions. It is also less accurate
as range increases
Radar position accuracy varies from a
few hundred feet at close range, to many
1,000s of feet at longer ranges
Accuracy & Reliability
ADS-B uses message payloads
whose accuracy is binary (either
100% correct, or discarded), so
the message integrity is the same
at all ranges
NW 12
34.56772E 102.71234N
37,020 ft 517 kts 210 MH
-005 fpm normal
OK !
NW 12
34.56772E 102.71234N
37,020 ft 517 kts 210 MH
-005 fpm normal
ADS-B is just as accurate at
150 Nm as it is at 15 Nm!
ADS-B is: LESS EXPENSIVE, MORE ACCURATE
and MORE RELIABLE than RADAR!
RADAR ADS-B
ADS-B Link Augmentation System
ADS-B
Link Augmentation
System
TM
Patent Pending
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ADS-B Link Augmentation System
How ADS-B (978 MHz UAT) Works
WAAS GPS Position
Air-to-Air Links
Air-to Ground Link
ASTRIX CAT 33 Data
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ADS-B Link Augmentation System
ADS-B hascan
onlyovercome
ONE problem:
thisLINE
problem
OF SIGHT
How Works
C-Band S-Band L-Band
C-Band
978 MHz UAT UAT Out
Air-to-Ground In
And we STILL get Air-to-Air
TIS/FIS Feed ASTRIX CAT 33 Data
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ADS-B Link Augmentation System
Globalstar Constellation
~48 Satellites
Mean Altitude: ~870 SM
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ADS-B Link Augmentation System Coverage is ~1,350 nm radius (@100 AGL)
Major Atlantic Routes
1,400 + Flights/Day
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ADS-B Link Augmentation System
Major Pacific Routes
1,200 + Flights/Day
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ADS-B Link Augmentation System
Major South American
Routes, 1,200 + Flights/Day
Major African Routes
800 + Flights/Day
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ADS-B Link Augmentation System
Major Advantages
DIRECT ROUTING
5% - 10% less time in the air = less fuel burned!
Less ATC foot print by reducing number of ground
stations BOTTOM LINE:
MORE EFFICIENT CLIMB AND APPROACH
10%-15% greater
Single throttle efficiency
settings burn 3%-5% less fuel
BETTER FLOW CONTROL
> 14MT lessand
Less holding carbon in the
fewer takeoff and approach delays
atmosphere each
mean less engine timeyear!
on the ground and less fuel
burned in the air resulting in an additional 3%-5%
fuel savings
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ADS-B Link Augmentation System
Questions?
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ADS-B Link Augmentation System
900 Merrill Field Drive
Anchorage, AK 99501
Tel: 907-258-2372 Fax: 907-258-2328
www.ads-b.com
Presenter: Skip Nelson, skip@ads-b.com
USE AND DISCLOSURE OF DATA:
This presentation contains information that is proprietary to, and the property of ADS-B
Technologies, LLC and shall not be duplicated, used or disclosed, in whole or part, for any
purpose other than to evaluate its content without the express written permission of
ADS-B Technologies, LLC. This restriction does not limit the Original Recipients right to
use information contained in this presentation internally within its own organization, or if
it is obtained from another source without restriction.
21
ADS-B Link Augmentation System
