of more than 100 targets. A computer-based command and decision element is the core of the Aegis Combat System, which controls advanced anti-air and anti-submarine warfare systems, the
MK 41 Vertical Launching System and the Tomahawk Weapon
System. The Aegis systems on 32 Arleigh Burke-class destroyers
and Ticonderoga-class cruisers are being upgraded to engage
short- to intermediate-range ballistic missile threats.
The Aegis fleet modernization program encompasses a series
of modifications and upgrades using COTS networking and system infrastructures. In 2007, the Navy approved installation of
a fully open architecture Aegis system for existing cruisers and
destroyers with the goal of separating software and hardware to
create a networked computing environment. The combat system software also will be in component form to enable reuse on
in-service and new-construction ships. Installation of the fully
open architecture system, Advanced Capability Build 12, began
in 2012. The Multi-Mission Signal Processor, which will
combine SPY- 1 radar and BMD signal processing in an open-architecture environment, is being fielded on Aegis systems.
The restart of the production of Arleigh Burke DDGs will see the
ships incorporate new technologies such as the SPY-1D(V) radar
with Multi-Mission Signal Processor, the Surface Electronic Warfare
Improvement Program, Ballistic Missile Defense 5.0 and the SQQ-
89(V) Anti-Submarine Warfare/Undersea Warfare Combat System.
The Aegis Combat System also forms the core of the Phased
Adaptive Approach, an initiative to install Aegis Ashore ballistic-missile defense systems in Romania and Poland.
CONTRACTORS:.........Lockheed Martin Corp., Raytheon Co., Boeing
Co., ATK, Aerojet (Standard Missile- 3)
BRIEFING: CEC is key to obtaining a single integrated air picture and provides the fleet with the defensive flexibility required to confront the evolving threat of anti-ship cruise and
theater ballistic missiles. By integrating the sensor data of each
ship and aircraft into a single, real-time composite track picture, CEC improves battle force anti-air warfare and theater air
CEC simultaneously distributes sensor measurement data on
airborne threats to each CEC-equipped ship in real time or by
passing the information via the combat direction system to the
theater air defense information link systems in near real time
within a battle group. CEC extends the range at which a ship
can engage hostile missiles to well beyond the radar horizon,
provides significant reductions in dual tracks and track swaps
and significantly improves area, local and self-defense capabilities. Major components are the USG- 2 fire-control system for
shipboard use and USG- 3 for the Navy’s E- 2 aircraft.
CONTRACTOR: ...........Raytheon Co.
SQQ- 89 UNDERSEA WARFARE
BRIEFING: The SQQ- 89 provides all cruisers, destroyers and
frigates 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.
CON TRACTORS: .........Lockheed Martin Corp., Advanced Acoustic
SQQ- 90 INTEGRATED ACOUSTIC
SENSOR SUITE (IASS)
BRIEFING: The IASS is the integrated underwater warfare system being designed for 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. It is the first dual-frequency hull-mounted system in a
Navy surface ship. The system successfully completed a design
review in August 2007.
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 weapon 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.
CON TRACTOR: ...........Raytheon Co.
SHIPBOARD PROTECTION SYSTEM
BRIEFING: SPS is being developed to protect Navy vessels from
asymmetric surface, subsurface and airborne threats by integrating improved situational awareness, warning and engagement
capabilities. SPS is designed to improve ship self-protection
91 WWW.SEAPOWERMAGAZINE.ORG SEAPOWER ALMANAC 2015
SHIPBOARD COMBAT SYSTEMS
NAVY C4ISR AND UNMANNED SYSTEMS