DSIT Solutions Underwater Port Security and Sonar Systems

For the past two decades, DSIT Solutions has been developing and applying state-of-the-art technology to create advanced sonar systems and C&C applications for defence, commercial, energy and homeland security markets.

The company is a subsidiary of Rafael Advanced Defense Systems Ltd and Acorn Energy (NASDAQ: ACFN).

Hull-mounted sonars for naval applications

DSIT’s Blackfish HMS is an innovative hull-mounted sonar that can be tailored to the exact requirements of navies based on their operational needs and size of vessels.

DSIT’s Blackfish HMS is a medium-frequency hull-mounted sonar (HMS) for littoral and deep water ASW operations. The Blackfish sonar features:

  • Highly advanced signal processor module for active and passive detection
  • Target search
  • Tracking and classification both in active and passive modes

The product includes advanced automatic functions for operator ease and a built-in training simulator (TS), which supports the training of operators on-board.

Diver detection sonars for underwater security

AquaShield™ is a high-performance diver detection sonar (DDS) system, which is used for long-lasting underwater protection in naval bases, docks, oil and gas depots, offshore platforms, underwater pipelines and cables, nuclear energy facilities, and canals.

The AquaShield™ DDS provides long-range recognition for many marine threats, including divers using rebreathing devices, scuba divers, and unmanned underwater vehicles (UUVs).

The AquaShield™ construction is flexible and offers three sector coverage configurations: 120⁰, 240⁰ and 360⁰. All configurations cover the entire relevant water column.

The system supports fully automatic operation and eliminates the need for a well-trained sonar operator. Its advanced signals processing algorithms ensure the anticipated arrangement of very high Probability of Detection (PD) with very low False Alarm Rate (FAR).

The DDS can be used underwater for long periods with little maintenance required. It is particularly strong and can endure the detonation of a typical underwater charge (200g TNT) at a range of five metres.

Portable diver detection sonars for fixed installations

PointShield™ is a portable diver detection sonar (PDDS) system designed for vessel protection and suitable for fixed installations where a limited area needs to be covered.

The PointShield™ is lightweight, compact, and portable, allowing quick deployment and retrieval. It can endure continuous underwater operation, making it ideal for permanent installation.

The PDDS features automatic operation and cutting-edge signal processing algorithms.

The PointShield™ provides omnidirectional (360°) coverage, generating a security range that surrounds the secure object from all sides and covers the entire relevant water column.

Cost-effective portable acoustic range devices

Based on their radiated noise, submarines and surface vessels can be identified by passive sonar systems. DSIT’s portable acoustic range (PAR) offers a portable, straightforward and profitable way to precisely measure submarines and surface ship noise emission in real-time.

The PAR allows operators to monitor and manage noise and silence their ships and submarines.

The system continuously tracks the measured vessel and transmits the data to a measurement ship, enabling radiated noise processing, analysis and display. The device comprises a comprehensive platform database for the management of measurement results and provides playback and post-analysis capabilities.

The PAR’s compact design and flexibility enables rapid deployment and retrieval of the system, while it saves maintenance costs involved in operating a fixed acoustic range. It also allows its users to obtain highly accurate and reliable measurements of their fleet.

Static active sonar coastal surveillance systems

SeaShield ™ is DSIT’s long-range undersea coastal surveillance system. It detects underwater threats such as submarines, mini submarines, and other submersibles in large coastal areas.

The system should be installed along critical coastlines, maritime borders and at harbour entrances to allow governments to guard their territorial waters as well as their exclusive economic zone (EEZ).

The active sonar delivers increased security for the navy’s own ships and submarines by making it very challenging for underwater vessels to enter the secure area. The navy is capable of directing its special anti-submarine warfare (ASW) responders to the precise position of the unidentified submarine.

The SeaShield™ consists of an active transmit sonar array and large passive receive arrays that are linked to an electrical component. The SeaShield™ features automatic detection, tracking and classification of targets of interest.

Several SeaShield ™ underwater units can be positioned in-line to operate together as a long anti-submarine obstruction. Unlike traditional ASW operations that involve search patrols performed by ships, helicopters, and maritime patrol aircrafts (MPA), the SeaShield™ is a fixed system that continuously searches for submarines.

Sonar simulation and training

Today’s sonar systems are complex and require long hours of training and preparation. The learning process is costly and requires long hours in the classroom and at sea.

DSIT’s Generic Sonar Simulator’s robust software design and interface support easy adaption to any type of sonar system such as HMS, VDS, ATAS, dipping, passive towed array, flank array, intercept, and the mine detection sonar.

All relevant training parameters are stored in the database, including:

  • Scenarios
  • Own ship and target’s acoustic parameters
  • Environment and sea acoustic parameters
  • Sound velocity profile (SVP)

New exercises can be easily created by the system and existing exercises can be retrieved from the Exercise Library.

Simulated acoustic signals include:

  • Active target echo
  • Target BB and NB radiated noise (including DEMON and transients)
  • Transmissions of active sonar on-board targets
  • Ambient noise
  • Reverberations
  • Self-noise (flow noise)

Sonar receivers and processors are simulated by performing real signal processing of the imitated acoustic signals (identical to the real sonar system) in order to produce realistic video and audio.

Underwater acoustic signal analysis systems

DSIT develops advanced acoustic intelligence (ACINT) measurement and analysis applications for underwater asset protection.

The company’s underwater acoustic signature analysis system (UASA) is a shore-based solution for low-frequency sonar (LOFAR) data collecting, processing, examination, grouping, and database administration.

The LOFAR data comprises acoustic signals emitted by numerous sources, which are received and collected by naval sonar systems (submarine sonars, towed arrays, surface and air platforms, fixed bottom moored sonar systems, sonobuoys) using a data recording system installed on-board the vessels. These recording systems are installed in submarines, surface vessels, and aeroplanes. Once data is collected and the vessel is back in the base, the recorded information is sent for investigation at the central lab to produce the navy’s acoustic signature database.

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SeaShield™ – Underwater Coastal Surveillance System

The SeaShield monitors long stretches of coastline, harbors and ports, naval bases and other strategic areas against the danger of hostile submarines and smaller submersibles.

DSIT Solutions

2 Rechavam Ze'evi Street

Giv'at Shmuel



+972 (0)3 531 3333 +972 (0)3 531 3322 DSIT's Portable Acoustic Range www.dsit.co.il DSIT's Shield Family DSIT's Underwater Security System

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Press Release

22 May 2018

DSIT Solutions Ltd has presented its underwater security systems at a US Navy base for the Stiletto Maritime Demonstration Program.

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30 January 2018

DSIT is due to attend the Undersea Defence Technology (UDT) 2018 being held in SEC, Glasgow, Scotland, between 26-28 June 2018.

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16 January 2018

DSIT is due to attend the Border Security Expo 2018 being held in Henry B Gonzalez Convention Center San Antonio, Texas, US, between 31 January-1 February.

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10 January 2018

DSIT Solutions Ltd has signed a contract with Tata Power SED (India) to jointly supply 78 PointShield Portable Diver Detection Sonar (PDDS) units to the Indian Navy.

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20 November 2017

DSIT Solutions Ltd has revealed that it has successfully installed a second Diver Detection Sonar (DDS) at Naftoport Oil Terminal in Gdansk, Poland.

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16 August 2017

DSIT is due to attend the MADEX 2017 exhibition being held in BEXCO, Busan, Korea, between 24-27 October.

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20 July 2017

DSIT will be attending the SEECAT 2017 exhibition, held in Tokyo Big Sight, West Hall, Tokyo, Japan, between 11-13 October.

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17 November 2016

DSIT Solutions Ltd has revealed that it has received another purchase for its AquaShield™Diver Detection Sonar (DDS) from Naftoport Oil Terminal.

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7 June 2016

DSIT Solutions announced today that it has received a new $7.1m order for its Blackfish Hull Mounted Sonar (HMS) systems to be delivered over a two-year period.

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27 January 2016

Acorn Energy, Inc. today announced the sale of a 50% strategic interest in its DSIT Solutions, Ltd. business to Rafael Advanced Defense Systems, a major Israeli defence company.

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20 September 2015

DSIT Solutions Ltd., a subsidiary of Acorn Energy, Inc. (NASDAQ: ACFN), announced today that it has received a $2.2m order from an undisclosed navy.

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3 June 2015

DSIT Solutions, an Acorn Energy company, disclosed today the receipt of several follow-on orders for development and production from a number of its customers in Israel.

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2 June 2015

DSIT Solutions has announced it will be attending the Undersea Defence Technology (UDT) 2015 conference.

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14 February 2015

DSIT Solutions, a subsidiary of Acorn Energy, announced today that it has received an order for four Hull Mounted Sonar (HMS) systems and Anti-Submarine Warfare (ASW) Trainer.

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29 September 2014

DSIT Solutions, a subsidiary of Acorn Energy, announced today that a leading Mediterranean navy has placed an order for its AquaShield™ Diver Detection Sonar (DDS) system.

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2 September 2014

DSIT Solutions, a subsidiary of Acorn Energy, announced today that it has received an order for its underwater security system to protect a european nuclear power facility.

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17 June 2014

DSIT Solutions, a subsidiary of Acorn Energy (NASDAQ: ACFN), has announced the introduction of the AquaShield Extended Range (ER) Swimmer delivery vehicle Detection Sonar (SDS) to its product line.

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17 June 2014

Acorn Energy announced today that its DSIT Solutions subsidiary has completed a design review, which is the first milestone of a contract received in late 2013 to supply and support an advanced underwater acoustic monitoring system.

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12 March 2013

DSIT Solutions, an Acorn Energy company, announced today the receipt of multiple orders from an undisclosed navy for a number of AquaShield™ underwater security systems. The orders totaling $3.2m are for immediate production and delivery.

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16 January 2013

DSIT Solutions, an Acorn Energy (NASDAQ:ACFN) company, will present a case study at the Oil & Gas Infrastructure Security, Africa International Conference, Training and Workshops, 21-25 January in Accra, Ghana. DSIT will be presenting on the morning of 22 January, the second day of the event.

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21 October 2012

DSIT Solutions Ltd, an Acorn Energy (NASDAQ:ACFN) company, announced today the receipt of a new order for its PointShield™ Portable Diver Detection Sonar (PDDS) system.

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31 August 2012

DSIT Solutions Ltd. an Acorn Energy company (ACFN), has received an invitation from the Oil & Gas Critical Infrastructure & Asset Security Forum to present a case study at their international exhibit and forum to take place in Vienna, Austria September 19 - 21, 2012.

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23 August 2012

This order follows a lengthy bidding and evaluation process in which DSIT was selected as the supplier for the sonar trainer.

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16 July 2012

DSIT Solutions and US Seismic Systems have been awarded a $900,000 grant from the BIRD Israel-US Binational Industrial Research and Development Foundation.

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23 February 2012

DSIT Solutions disclosed today that the Israeli Navy has purchased DSIT's AquaShieldTM Diver Detection Sonar (DDS) and PointShieldTM Portable Diver Detection Sonar systems.

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12 December 2011

DSIT Solutions announced today the receipt of its largest order ever for underwater security systems.

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3 October 2010

DSIT Solutions, a subsidiary of Acorn Energy, has announced that it has received orders from an Asian country for its underwater sonar systems. The combined value of the contract is more than $6m. Dan Ben-Dov, VP sales and marketing said: "This is the second order of this magnitude

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28 July 2010

DSIT Solutions, a subsidiary of Acorn Energy, has announced today that it will officially introduce its new lightweight, compact, portable Diver Detection Sonar (DDS) system, the PointShield™ DDS at two exhibitions taking place in Europe and the United States this month. The firs

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7 February 2010

DSIT Solutions, a subsidiary of Acorn Energy, has been awarded a contract to supply its AquaShield™ Diver Detection Sonar (DDS) systems for the protection of several coastal and offshore installations. The contract value is just over US $4,400,000. The AquaShield™ underwater security sy

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2 December 2009

DSIT has announced the successful completion and delivery of stage I of two of the Dolphin submarine tactical trainer project for the Israeli Navy. The project, which was awarded to DSIT in June 2007 following an international tender, called for the simulation of all sonar and weapons s

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28 September 2009

DSIT Solutions a subsidiary of Acorn Energy Inc. (NASDAQ: ACFN), has announced the signing of an agreement with a leading Homeland Security (HLS) integrator securing future orders for its underwater site security systems. Under the agreement the integrator commits to providing DSIT, by the end of

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11 May 2009

DSIT Solutions Ltd., a subsidiary of Acorn Energy Inc. (NASDAQ: ACFN), has received another large order, the third in the last few months, for its AquaShield underwater port security system. The $2.3 million order is for multiple sensors, which will protect a strategic site against underwater int

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3 March 2009

DSIT Solutions, a subsidiary of Acorn Energy, announced today that it has received a $1.7 million order for its AquaShield™ underwater security system. The system, to be used by a large energy facility at an undisclosed location in Asia, will guard and protect the customer infrast

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7 December 2008

DSIT Solutions, a subsidiary of Acorn Energy, announced today the sale of its AquaShield™ diver detection sonar (DDS) system to an undisclosed EMEA government. The system will be installed in an area with critical infrastructure, including a port and energy production facilities. “This

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Regional Offices

DSIT Solutions

2 Rechavam Ze'evi Street

Giv'at Shmuel



+972 (0)3 531 3333 +972 (0)3 531 3322 DSIT's Portable Acoustic Range www.dsit.co.il DSIT's Shield Family DSIT's Underwater Security System

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