SHIPBOARD COMBAT SYSTEMS
SQQ- 89 UNDERSEA WARFARE
BRIEFING: The SQQ- 89 provides all cruisers and destroyers
with a seamlessly integrated undersea warfare (USW) detection,
localization, classification and targeting capability. The system presents an integrated picture of the tactical situation by
receiving, combining and processing active and passive sensor
data from the hull-mounted array, towed array and sonobuoys.
The SQQ- 89 is integrated with the Aegis Combat System
and provides a full range of USW functions. The Aegis cruisers and destroyers are being updated to the latest version,
the SQQ-89A(V) 15, which employs an open architecture using
state-of-the-art commercial computing technology to achieve
major performance gains over previous designs at reduced
cost. The SQQ- 89 also is the foundation of the SQQ-90 for
the Zumwalt-class destroyer and the anti-submarine warfare
(ASW) mission package for the littoral combat ship (LCS).
CONTRACTORS: . . . . . . . . . Lockheed Martin Corp., Advanced Acoustic
SQQ-90 INTEGRATED ACOUSTIC
SENSOR SUITE (IASS)
BRIEFING: The IASS is the integrated underwater warfare system
installed on the Zumwalt-class destroyer. The suite will provide
operators with a complete undersea warfare picture that includes
the search for, and detection of, potential threats such as submarines, torpedoes, mines and unmanned undersea vehicles. It also
will integrate all Zumwalt destroyer acoustic undersea warfare
systems and subsystems, and associated software. The SQQ-90
comprises the SQS- 60 hull-mounted mid-frequency sonar, the
SQS- 61 hull-mounted high-frequency sonar and the SQR- 20
multifunction towed array sonar and handling system. It is the
first dual-frequency hull-mounted system in a Navy surface ship.
CONTRACTOR: . . . . . . . . . . Raytheon Integrated Defense Systems
SHIP SELF-DEFENSE SYSTEM (SSDS)
BRIEFING: SSDS is a combat system that integrates and
coordinates all of the existing standalone sensors and weapons systems aboard Navy aircraft carriers and amphibious
warfare ships to provide a quick-reaction combat capability
against incoming anti-ship cruise missiles by expediting the
detect-through-engage sequence. Consisting of software and
COTS hardware, SSDS integrates radar systems with anti-air
weapons, both hard-kill (missile systems and rapid-fire gun
systems) and soft-kill (decoys). It expedites the assignment
of weapons for threat engagement, providing a “recommend
engage” display for operators or, if in automatic mode, initiating weapons firing, jamming or chaff decoy deployment, or
some combination of these.
SSDS Mk1 was fielded in the mid-1990s and is installed on
all dock landing ships. Mk2 Mod 0 is installed on the carrier
USS Nimitz, Mod 1 on the carriers Ronald Reagan and Dwight D.
Eisenhower, Mod 2 on the amphibious transport dock ship San
Antonio and Mod 3 on the amphibious assault ship Makin Island.
CONTRACTOR: . . . . . . . . . . Raytheon Co.
BYG- 1 SUBMARINE COMBAT
BRIEFING: The BYG- 1 is the common combat control system
for all Navy submarines, except Ohio-class ballistic-missile
subs. It incorporates tactical control, weapon control and
tactical LAN functions into one procurement program. BYG- 1
allows the sub force to rapidly update the ship safety tactical
picture, integrates the common tactical picture into the battle group, improves torpedo interfaces and provides tactical
Tomahawk cruise missile capability. BYG- 1 systems are being
updated continuously with hardware improvements. BYG- 1 is
being installed on all attack and guided-missile submarines.
CON TRAC TORS: . . . . . . . . . Raytheon Co., General Dynamics Advanced
Information Systems, Progeny Systems Corp.,
Lockheed Martin Corp.
SHIPBOARD RADAR SYSTEMS
SPY- 1 MULTIFUNCTION RADAR
BRIEFING: The SPY- 1 multifunction S-band phased-array
radar, characterized by its distinctive, superstructure-mounted
planar-array antennas, is the heart of the Aegis Combat System onboard Navy guided-missile cruisers and destroyers.
SPY- 1 is capable of long-range search, automatic detection,
track and engagement of aircraft, cruise missiles and surface
The SPY-1E upgrade in selected ships has been optimized
to detect, track and engage theater ballistic missiles and is
incorporated in national BMD nets. The SPY-1A/B versions
are installed on the Ticonderoga-class cruisers. The fifth version of the radar, the SPY-1D(V), features improvements in
capability against low-flying targets with small radar cross
sections operating in heavy clutter environments and intense
electronic countermeasures. The SPY-1D(V) is installed on
CON TRAC TORS: . . . . . . . . . Lockheed Martin Corp., Raytheon Co.
SHIP SELF-DEFENSE SYSTEM ABOARD USS DWIGHT D. EISENHOWER