Home' Defence Review Asia : DRA March-April 2017 Contents DefenceReviewAsia | MARCH/APRIL 2017 33
including MANPADS. The system can also be
deployed as gap filters for supporting C3I centres
for Air Traffic Control (ATC).
It has been thoroughly field proven, often
operating in busy and high-clutter environments.
In contrast, surveillance radars designed to detect
personnel or vehicles on the ground are not capable
of warning against enemy direct or indirect fire aimed
at them. These services are provided by yet another
type of radar -- Counter-Rocket, Artillery and Mortars
(C-RAM), that provide effective early warning from
such attacks, but are often quite bulky and heavy. In
addition, they typically require complex networking to
distribute early warning alerts about imminent attacks,
and are often useless protecting tactical units from
close range by mortars or direct fire.
As an answer to this acute operational challenge,
ELTA has developed the ELM-2138M Green Rock
Tactical C-RAM Radar System.
Green Rock is a mobile autonomous tactical
C-RAM system designed to support a variety of
ground force protection missions, including fire
source location, "friendly forces" fire correction,
and detection of low-flying airborne targets such as
UAVs, gliders and hovering platforms.
According to the Israeli company, the system
provides complete low/high trajectory target
coverage, real-time intelligence and rapid response
solutions for tactical forces. Green Rock's mission
is to locate fire squad positions, distribute selective
warning alarms and enable an effective fire
response. It can be installed on a variety of mobile
or stationary platforms such as armored personnel
carriers, high mobility multipurpose wheeled and
Green Rock is based on a phased array Pulse
Doppler Radar that acquires and tracks the
trajectories of ballistic munitions such as rockets,
artillery and mortar rounds, calculates the point
from which they were launched, and predicts the
location of the expected impact. This information is
reported via a communications system to friendly
forces to indicate and provide warning of relevant
threats. Data can be also sent to precision weapon
systems to allow a rapid and accurate response to
the source of the threat.
The current fighting in Iraq and Syria has proved
the vulnerability of "Soft" vehicles to shoulder
launched rockets and other antitank weapons. In
response, ELTA has developed the ELM-2133
WindGuard radar for the protection of Armored
Fighting Vehicles (AFVs) such as Tanks and
Armored Personnel Carriers (APCs), and other
Surveillance and Reconnaissance Vehicles,
including trucks and jeeps.
After detection and identification of a potential
threat, the radar delivers early warning to the
AFV crew, indicates the accurate 3-D direction
of the threat, calculates the Time-To-Impact (TTI)
and automatically activates reaction systems for
protection of the AFV.
ELTA says that the ELM-2133 WindGuard Radar
can be integrated with any soft-kill and hard-kill
countermeasures which protect the AFVs.
The ELM-2133 is the main sensor of the Trophy
active protection system developed by Rafael. This
system protects the Israeli made Merkava Mk 4
main battle tanks.
The threats to ground forces from aerial attacks
is growing steadily. Armed UAVs, loitering weapon
systems and low flying combat helicopters can
inflict big damage to ground units. To enable "escort
protection" to infantry units ELTA has developed
the ELM-2026B Very Short Range Air Defense
(VSHORAD] Radar, a fifth generation 3D Tactical
Air Defense Radar.
This system is lightweight and easily
transportable. It uses an X-band, solid-state
electronically scanned, pulse-doppler radar.
According to the company it delivers early warning
and target data for supporting surface-to-air missile
The radar employs multi-beam elevation coverage
by applying Digital Beam Forming (DBF) and 360
degree azimuth coverage by antenna rotation.
ELTA says that the radar is capable of detecting a
wide variety of low RCS targets such as low flying
fighter aircraft, low velocity ultra-lights and UAVs.
The radar provides accurate target measurement of
velocity, range, azimuth and elevation angles.
In recent years there is a growing demand for
"staring" radars and for this function ELTA has
developed the ELM-2112 Persistent Ground and
Coastal Surveillance Radar. It uses simultaneous
multibeam technology, thus providing persistent
surveillance and instantaneous target tracking over
a wide area.
According to Amnon Meir, border security expert
at ELTA, the ELM-2112 is operational in all weather
conditions, and instantly detects, monitors and
tracks all ground moving targets and all sea targets
(moving and stationary) in the Region Of Interest
(ROI), such as a walking person, a moving vehicle
and various vessels and boats at sea.
"The staring radar has an advantage when
compared to radars with a high revisit rate. By
staring in one direction, our radar can sample a
target 4 times every second thus identifying targets
with high accuracy." Meir said that the staring radar
can detect swimmers at sea by better filtering the
clutter caused by waves.
Many power stations are located near the
beach or close to lakes for cooling water access,
which creates a security problem. "Recently we
developed a lighter version, the ELM-2114 which is
suited perfectly for the protection of civil strategic
installations like power stations. It has a detection
range of 500 metres".
Meir revealed that another version, the ELM-
2112 FP, can detect targets hidden in foliage.
This radar is based on Frequency Modulated
Continuous Wave (FMCW) technology and
enables personnel and vehicle movements to be
detected for up to several kilo metres in forested
areas in real-time and irrespective of whether or
not there is a clear line-of-sight." The depth of
detection through foliage depends on the type of
growth and density, Meir added.
While ELTA is a major manufacturer of radars
ELM-2112 foliage penetrating radar
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