Tech_020711.qxd - Raytheon

tive procurement for the Navy where Raytheon was not considered the front runner. Our
technical approach, developed by the Naval and Maritime Integrated Systems (N&MIS)
Program Management Office and Surface Radar Engineering, was based on an evolution of
Air Missile Defense Systems (A/MDS) phased array radars such as Theater High Altitude Air
Defense (THAAD), yet incorporated key functionality developed in Electronic Systems (ES)
North Texas and ES El Segundo, to provide the absolute best value to the customer.
A comprehensive treatment of our development and production programs and the
underlying technologies would take a volume much larger than an issue of technology
today. Within these pages, selected highlights demonstrate the breadth of our programs
and systems. Raytheon has unprecedented capability to support its customers with major
design facilities at Electronic Systems in California, Massachusetts, and Texas; C3I in
Massachusetts, Waterloo, Ontario; and RSL in the UK. All of these sites have manufacturing
capability along with our plant in Forest, Mississippi.
From these locations, we have achieved leadership positions in most market segments
and provide system solutions for airborne applications, including air combat and ground
and ocean surveillance; ground applications including missile defense, air traffic control
(civilian and defense), and space surveillance; and ship applications for self-defense and
volume surveillance.
Radar Systems in Air/Missile Defense Systems (A/MDS)
As the business unit name implies, A/MDS provides radars for air and missile defense. The
long-standing product lines include PATRIOT and HAWK. These field proven systems have
established A/MDS as the leader in radar systems for missile defense. A/MDS has also built
nearly every radar system used for ballistic missile early warning and data gathering including
PAVE PAWS, Ballistic Missile Early Warning System (BMEWS), COBRA DANE, and
COBRA JUDY. These legacy systems are joined by a number of development programs
including THAAD, Upgraded Early Warning Radar (UEWR), X-band Radar (XBR), Joint Land
Attack Cruise Missile Defense Elevated Netted Sensor (JLENS), and Affordable Ground
Based Radar (AGBR).
SPY-3 Phased Array Team - 2001 Excellence in Technology Distinguished Level Award Winners
The PATRIOT radar is a C-band multifunction
phased array with track-via-missile
guidance. It provides long range high-altitude,
all-weather coverage designed to
defeat advanced threats, including aircraft,
tactical ballistic missiles and cruise missiles.
The design has continuously evolved and
the sixth major software functionality
increase since initial deployment is currently
in development. Hardware improvements
have been made to support enhanced
target classification capabilities.
An integral part of the THAAD System, the
THAAD radar is an X-band, phased array,
solid-state radar. It supports the long-range
functional requirements of the THAAD mission
by delivering high power output and
exceptional beam/waveform agility. After a
successful demonstration/validation phase,
the program is currently producing the
EMD radars.
The X-Band Radar (XBR) is a large, phasedarray
that is the primary fire control sensor
for the Ground-Based Mid-Course Defense
(GMD) system providing surveillance, acquisition,
tracking, discrimination, fire control
support and kill assessment. The radar performs
surveillance autonomously or as cued
by other sensors such as UEWR, and will
acquire, track, classify/identify and estimate
trajectory parameters for targets. The radar
has sophisticated discrimination capability
able to identify re-entry vehicles from other
objects including decoys. XBR has a
thinned array with a limited electronic field
of view that is augmented by a dynamic
pedestal and mechanically slued to provide
hemispheric coverage. XBR derives its
configuration from Ground Based Radar
Prototype (GBR-P) architecture and leverages
a high percentage of software reuse
from GBR-P, which in turn was leveraged
from the THAAD system. XBR and THAAD
also share many hardware components
such as the transmit/receive (T/R) modules.
The UEWR program is upgrading the existing
early warning radars to support the
GMD mission. The apertures of these radars
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