Control Algorithms and Software Design 

EMS designs, delivers and implements control software and algorithms for advanced control features and functions for the following UWEM countermeasure systems:

• Degaussing systems for worldwide operation
• Advanced ICCP (AICCP) systems for worldwide operation
• Magnetometer feedback control
• ASG systems
• Superconducting systems control and status
• Magnetic treatment systems
• Magnetic treatment protocols and shot applications
• Magnetic ranging systems
• DG calibration
• AICCP calibration
• Magnetic sensor calibration and operation
• Magnetic field mapping and prediction
• Survivability and availability
• Degraded mode operation
• Real-time event logging
• Automatic logging and reporting

Countermeasures Design 

Ultra Electronics, EMS offers engineering services that encompass all aspects of a complete cradle-to-grave support, engineering, product and systems approach. This covers any and all underwater electromagnetic (UWEM) disciplines, products and analyses for military (onboard ship countermeasures, off-board countermeasures, magnetic treatment, harbor security), research and civil projects. 

Countermeasure systems include on-board degaussing (OBDG), advanced degaussing (ADG), advanced impressed current cathodic protection (AICCP), impressed current cathodic protection (ICCP), passive ship grounding (PSG) and active ship grounding (ASG), as well as off-board systems such as magnetic treatment facilities and magnetic ranging facilities.

Countermeasure engineering services provided by EMS include:

• Computer modelling for analysis of UWEM signatures and threat analyses, prediction and risk management
  • FEM
  • BEM
• Feasibility studies, requirements specifications, preliminary design and consultancy services for countermeasure systems
• Contract design, system layout, systems architecture and systems engineering services for on-board and off-board countermeasure systems
• System installation, set-to-work, light-off, SAT and HAT support/services
• System calibration services and support
• Ship magnetic treatment support

Research, civil and military UWEM project services provided by EMS include:

• Computer modelling (FEM, BEM) for analyses of UWEM
• Prototyping of new technologies and applications
• Spiral development of new products
• Feasibility studies
• Applied mathematics, specifically for development of control and implementation of applications

Magnetic treatment of naval vessels

EMS provides engineering and consultancy services for design, development, installation and implementation of magnetic treatment systems for treatment of naval vessels.

EMS provides cradle-to-grave offerings including concept feasibility, site survey, specification development, protocol development, architecture, requirements development, control, calibration, treatment algorithms and software including range software and algorithms, systems engineering, training and SAT/HAT support.

The EMS strategy is to work with in-country partners, functioning as a sub-contractor to provide the engineering expertise for the magnetic treatment of vessels, ensuring project success. When a full turnkey solution is required EMS can coordinate with contracting partners and manage the entire project for the host country partner.

Underwater electromagnetic signature modelling

Ultra Electronics, EMS has over 10 years’ experience and validation of the Finite Element Modelling and Analysis Package (FEMAP) software suite with ranged ships and submarines. The modelling techniques and optimization algorithms assure accuracy, efficiency, speed and confidence in assessing a ship or submarine's underwater electromagnetic signature.
FEMAP software and modelling services can also be used to assess the ship and submarine on-board equipment contribution to underwater electromagnetic (UWEM) signature and evaluate design changes for minimization of signature from the equipment.

UWEM fields emitted by a ship or submarine:

• Permanent static magnetic fields
• Induced static magnetic fields
• Alternating magnetic fields
• Static electric fields
• Corrosion related magnetic fields
• Alternating electric fields
• Alternating CRM fields
• Stray electromagnetic fields

Factors contributing to underwater electromagnetic signature:

• Construction material of the ship, equipment installed on the ship, mission modules
• Location and placement of equipment on the ship
• Pitch and roll of the ship during operating conditions and missions
• The corrosion rate of the ship structure, tanks, propellers, waterjets, bow thrusters, sonar domes and other immersed systems
• Rotating shaft systems for the propellers, waterjets and bow thrusters
• Electrical power and signal system wiring for the ship, ship equipment and mission modules
• On-board electromagnetic radiation of electronic systems

FEMAP software

EMS is able to model total UWEM signature and design a complete suite of countermeasure systems via computational methods, using a combination of commercially available software modules (FEM, BEM and graphing/computation) and an in-house optimization and ship/sub specific suite of software called FEMAP.

FEMAP software and modeling techniques have been validated in both the USA and UK against both signatures of physical scale models of vessels and actual ship signatures. EMS has successfully designed, delivered and calibrated several USN, NATO and allied nation ship classes using FEMAP.