DIGITAL RADAR INTERCEPT AND COUNTERMEASURES - VirtuaLabs S.r.l - Radar & EW Systems Innovation

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Radar & EW Sytems Innovation


Radar & EW Sytems Innovation

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1- Generalities

DRIAC is an advanced “all-digital” Integrated ESM-ECM System based on the state of art technology of Direct RF sampling, up to 18 GHz, providing very good performances by means of few digital modules, Software/Firmware controlled.
Therefore, beside the high performances and reliability, DRIAC exhibits also a very good cost-effectiveness and a minimal logistic support effort.
The passive section consists of the well-known DESM system, a Digital ESM based on multiple Digital Receivers (DRX). The ECM section is based on a Solid State Active Electronic Steering Antenna for Jamming (AESA_J) unit that receives the DRFM signals from DESM and radiate them at high Effective Radiated Power (ERP).
DRIAC results in a robust ESM-ECM System that can be easily installed in different types of platform.

2- DRIAC Main Features

Wide-open architecture to grant 100% Probability of Intercept (POI).
Strong channelization with four channels wideband DRX.
High Sensitivity over the whole RF range and over 360°.
High Dynamic Range, High Traffic handling (Pulses and CW).
Immunity against interferences thanks to the channelization.
Very accurate and reliable emitter’s parameters measurements
(Amplitude, Frequency, DOA, PW, PRI, MOP Flag, ASP).
Elint-like performances based on digital processing.
DRFMs implemented in the DRXs.
Large inventory of ECM techniques.
High ECM ERP provided by solid state AESA_J unit.
Multithreats capability.
Low Weight, Volume and Power Consumption; Simple Installation.

3- DRIAC Architecture

For naval or ground applications, DRIAC is composed of 3 units: DFU (Direction Finding Unit), DMU (Digital Management Unit) and AESA_J, in addition to a Rugged PC or a Console for the MMI (Man Machine Interface).

DRIAC exploits state of art technologies; its main blocks are:

 A DESM RF Front-End, composed of the Receiving Antenna Array, Pre-amplifier, Signal Conditioning section for a proper interface to the DRXs.
 A proprietary four channels Digital Receiving System able of sampling signals received in the RF band from 2 to 18 GHz and of processing them to generate extremely accurate Pulse
Descriptor Messages (PDMs) at millions rate. The generated PDMs are sent via a dedicated, high throughput Fiber Optic link to DMU.
 A programmable Jamming Signals Generator based on the DRFMs integrated in the DRXs.
 An active wideband solid state AESA_J capable of generating high ERP ECM signals. Two alternative configurations are shown: AESA_J (single Antenna Array) and AESA_J-2 (double Antenna Array). For a 360° azimuth coverage, four AESA_J antennas or two AESA_J2 are necessary.

An Identification Library is available, together with an ECM Library and a "Library Editor". The Library Editor allows the user to build his own library and to program tailored ECM action against each threat. The Identification process results are included in the emitters information.
Once a threat has been intercepted, the programmed ECM reaction is automatically generated and the AESA_J transmits the high ERP ECM signals in the threat direction, managing up to 4 threats at time.


DRIAC DMU manages a user friendly MMI to be addressed to an external Monitor/PC/Console.

The MMI allows complete scenario/system control to the operator.

Presentations of the scenario include modes like Tabular, Cartesian (RF/DOA), Tactical.

5- DRIAC Applications

DRIAC is in production for Naval applications and has been already validated by military Customers worldwide. DRIAC can be easily modified to respect the requirements for Airborne installations.

6- DRIAC Installation characteristics (Naval/Ground)

DESM: Power Consumption 850 W (115-220 Vac; 50-60 Hz)
DFU:  Dimensions 414 x 435 x 435 mm
Weight 25 Kg (approx)
DMU: Dimensions 177 x 483 x 400 mm
Weight 15 Kg (approx)
AESA_J: Power Consumption 900 W (115-220 Vac; 50-60 Hz)
Dimensions 150 x 500 x 300 mm
Weight 15 Kg (approx)il 1, 2001.
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