AIRBORNE ELECTRONIC WARFARE SYSTEMS
ZLQ- 1 ESM SYSTEM
BRIEFING: The ZLQ- 1 is the ESM system installed on the
MQ-4C Triton UAV. The digital system features specific
CONTRACTOR: . . . . . . . . . . Sierra Nevada Corp.
AIRBORNE SONAR SYSTEMS
AQS- 24 MINEHUNTING SONAR
BRIEFING: The AQS-24A is an active sonar winched and towed
through the water by an MH-53E mine-countermeasures helicopter. It is designed to detect mines for further investigation by
mine warfare forces. The AQS-24A uses sonar simultaneously
with a laser line scanner to provide precision optical identification of underwater mines. The sonar also has been ordered by
Japan for use on its minesweeping helicopters. The AQS-24A also
is the sensor for the Mine Hunting Unmanned Surface Vehicle.
The AQS-24B version features improved synthetic aperture sonar imaging — with three times the resolution of the
AQS-24A — and increased speed of real-time sonar processing. The first of three lots of AQS-24B upgrade kits were
delivered in September 2016. Two more lots were to be delivered by early 2017.
CONTRACTOR: . . . . . . . . . . Northrop Grumman ( Westinghouse)
AQS- 22 AIRBORNE LOW-FREQUENCY
BRIEFING: The AQS- 22 ALFS is the primary anti-submarine
warfare sensor for the MH-60R helicopter. The ASQ- 22 is
dipped into the water by a reel on the helicopter and used to
detect, track and localize a submarine. It also can be used for
passive acoustic intercept, underwater communications with
a submarine and collecting bathythermal information of the
ocean. LRIP began in 2002 and full-rate production in 2006.
The ALFS was first deployed operationally in 2009.
CONTRACTOR: . . . . . . . . . . Raytheon Co.
AQS-20A MINEHUNTING SONAR
BRIEFING: The AQS-20A is a variable-depth, underwater
mine-detection sonar designed to give a strike group an
organic capability to detect, classify and localize bottom,
close-tethered and volume mines. The AQS-20A also is fitted
with an electro-optic sensor to identify underwater objects.
The sonar is deployed while the helicopter is in a hover and
then towed undersea to scan the water in front and to the
sides of the aircraft, as well as the sea bottom for anti-shipping
mines. The sonar and electro-optical sensor provide high-resolution images of mines and mine-like objects as well as
high-precision location information. The AQS-20A is a component of the Remote Multimission Vehicle and the Airborne
Mine-Neutralization System in the mine warfare mission package of the LCS. It entered LRIP in 2005.
CON TRAC TOR: . . . . . . . . . . Raytheon Co.
USQ- 78(B) ACOUSTIC SYSTEM
BRIEFING: The P-3C’s USQ- 78(B) acoustic processor and display system upgrades the sonobuoy receiver to an all-digital
software-defined system, eliminates obsolete and proprietary
components, interfaces with an open-system architecture, and
provides processing and functionality growth for the life of
the aircraft. The USQ-78B is being installed in all P-3C AIP
and Block Modification Upgrade Program aircraft. The
Acoustic Receiver Technical Refresh (ARTR) program is
designed to provide replacement hardware and software for
the current P-3C acoustic suite. Additionally, ARTR is designed
to add some Radio Frequency Interference mitigation techniques along with an embedded sonobuoy recording capability.
Major components replaced by the ARTR are the
Advanced Sonobuoy Communication Link (ASCL) receivers,
ASCL pre-amps, acoustic distribution boxes, Command
Active Sonobuoy System transmitter, acoustic data recorders,
Time Code Generator and Acoustic Test Signal Generator.
New hardware consists of a Software Defined Sonobuoy
Receiver (SDSR), Command Function Transmitter, Quad
External Preamplifier, Embedded Acoustic Data Recorder and
an SDSR 4 antenna array.
CON TRAC TOR: . . . . . . . . . . Lockheed Martin Corp.
BRIEFING: Sonobuoys are used for environmental measurement
and prediction prior to and during an ASW operation, passive
and active acoustic search and localization of the submarine
target, and final active acoustic fixing of the target position.
Sonobuoys are expendable sensor systems designed to be
dropped from aircraft into the water, where the parachute-retarded or speed-braked cylindrical housings deploy battery-powered cables with passive acoustic hydrophones or active
transducers for detecting, tracking and collecting acoustic
intelligence on submarines and surface ships and radioing the
information to the aircraft or a ship for processing.
The SSQ- 36 bathythermograph sonobuoy is used to graph
the temperature profile of a body of water. The SSQ-53F
AQS- 24 MINEHUNTING SONAR