AN/APS-145
Advanced Airborne Surveillance Radar
AN/APS-145
Advanced Airborne Surveillance Radar
Design innovation the world over
The APS-145 Advanced Airborne Surveillance
Radar is the most reliable, cost effective, high
power radar available. This sophisticated
system is the latest in a long line of airborne
early warning systems from Lockheed Martin.
Its predecessors, the APS-120, APS-125, and
APS-138 have helped make the Northrop
Grumman E-2C Hawkeye the most reliable
carrier-based aircraft in the world. Over 100
E-2C’s have been completing nearly 100
percent of their missions, day in and day out,
for more than 2 decades. The APS-145 carries
on the tradition adding several significant
features found in no other airborne
surveillance radar.
The APS-145 is a high-power UHF Doppler
radar. It utilizes a rotating antenna within a
circular radome mounted atop the aircraft to
simultaneously detect and track multiple
threats on the sea, in the air, over land, and
the critical land-sea interface. While its
primary platform is the E-2C, it is easily
adaptable to other aircraft, including the
Lockheed Martin C-130 and P-3.
The APS-145 extends the performance of
previous airborne surveillance radars to
unprecedented levels. Its range is a full 40
percent beyond that of the APS-138 – greater
than any airborne surveillance radar in the
world. It will monitor and track more than
20,000 targets simultaneously. Sophisticated
jam avoidance and ECCM techniques assure
Exceptional
performance,
unparalleled reliability,
and unique
environmental
management capability
make the APS-145 the
most desirable advanced
airborne surveillance
radar in the world.
A complete surveillance
system designed to meet
broad challenges in
diverse environments
AN/APS-145
Advanced Airborne Surveillance Radar
unparalleled performance in dense EMI and
jamming environments. Adaptive signal
processing provides superior target detection
and tracking in complex target environments.
Elegant Automation
The APS-145 handles itself with discipline in
any environment. It is the first and only radar
to incorporate automatic performance
optimization. The APS-145 adapts to dynamic
operating conditions automatically over varied
terrain – with no operator intervention. That
means the operator is never spending time
performing routine functions at the expense of
the tactical mission. And it means that the
APS-145 is always performing at its best over
changing geographical and electromagnetic
conditions.
Made For Your Mission
The APS-145 combines sophistication,
performance, and reliability. Its automation
and Environmental Management System
(EMS) capability sets it apart from any radar in
the world.
From detection of small, low speed targets as
required for drug interdiction, to long-range
detection and tracking of advanced high speed
military aircraft and missiles with low radar
cross sections, there is simply no better, more
processing and track algorithms to suit the
environment anywhere in the world, over
5000 times per scan, with no operator
intervention.
Separating ships and low-flying aircraft radar
returns from sea reflections is a unique and
challenging test for any airborne radar
system. Through its unique Environmental
Management System (EMS), the APS-145
tailors its performance to match the dynamic
operating environment encountered during
mission performance. When conditions
change, the radar’s operating parameters are
automatically optimized, so performance is
always the best it can be.
The automatic optimization of the APS-145
allows operators to direct their attention to
the tactical mission by eliminating their need
to constantly adjust the radar to match the
prevailing geographic and
electromagnetic conditions. Even
with the most adept operators,
manual systems simply cannot
deliver this kind of performance.
Constant Evaluation
EMS partitions the radar coverage
into more than 5000 range and
azimuth related cells. With each
scan, the radar’s parameters are
adapted according to an updated
assessment of the environmental
conditions for each cell.
Additionally the fine-grain terrain
map stored in memory can be
customized before or during a
mission to include special environments the
system may encounter – it covers over 1
million square miles! This future ensures that
the radar is always uniquely optimized for its
specific mission.
cost-effective airborne surveillance radar than
the APS-145. Whatever your mission, this
radar is up to the task.
Environmental
Management:
Unique to the
APS-145
Over Land: Aircraft are tracked regardless of
terrain and target density. Ground vehicles
can be tracked when target densities are
lower.
On the Sea: The APS-145 is capable of
tracking all tactically important objects, from
large ships to patrol boats, from fast moving
aircraft to stationary platforms.
Over-The-Horizon (OTH): The surveillance
coverage is expanded far beyond most
ground-based radars. This allows for
advanced warning of incoming threats,
including the hard-to-detect low flyers, and
command and control information for
regions far from the home base.
Land-Sea OTH Interfaces: The radar
simultaneously monitors and tracks tactical
targets within the Land, Sea, and OTH
regions. It continuously modifies its signal
More Advanced
Features Than
Other Airborne
Surveillance Radars
The APS-145 continues in the tradition
of the APS-138, with more capable
technological and operational features.
The APS-145 provides enhanced
performance in the following areas:
40 percent greater range:
The range of the APS-145 is 40 percent
greater than the APS-138 radar,
increasing the continuous surveillance
volume to 6 million cubic miles.
Increased scan-to-scan correlation:
Long a feature of Lockheed Martin AEW
systems, scan-to-scan correlation is greatly
expanded in the APS-145 to maintain
over 20,000 tracks and provide far more
detailed target information to the
processor. The result is greatly improved
performance in all operational
environments.
Enhanced operation in dense signal
environments:
The APS-145 maintains operation in dense
signal environments where others fail.
Detection and tracking are fully automatic.
Automatic frequency evaluation and
selection:
APS-145 finds its way through dense and
dynamic electromagnetic interference
conditions with automatic channel
monitoring and selection. EMI impact is
continuously assessed, and the clearest
operating frequency is automatically
selected.
Continuous target identification:
The APS-145 incorporates a triple Pulse
Repetition Frequency (PRF) feature which
allows for continuous detection of all targets
over the entire tactical area; over land, sea
and the horizon, simultaneously.
The Most Cost-Effective
Solution To Airborne
Surveillance
The APS-145 broadens the capabilities of
airborne surveillance, and introduces
features never before available. Best of all,
the APS-145 is extremely cost effective,
especially compared to larger systems that
promise more but don’t include all of the
APS-145’s features and capabilities.
This type of performance is what you
would expect from Lockheed Martin.
We’ve been developing AEW systems
since the beginning. From the APS-10
Search Radar in 1943 that led to the
APS-20 in 1945, our expertise continues
to produce advanced airborne surveillance
solutions. Today our crowning
achievement is the APS-145; the most
capable, cost effective AEW system in the
world. It’s available today and built for
tomorrow’s threat. Whatever your
mission, the APS-145 is ready.
For more information, contact:
Manager - Business Development
Lockheed Martin
Ocean, Radar & Sensor Systems
P.O. Box 4840
Syracuse, NY 13221-4840 (USA)
1-(315)-456-1990 Phone
1-(315)-456-3515 Fax
B036/2-96