Electromagnetic Environmental Effects

Electromagnetic effects on complex platforms

Navío POLA

HEMCUVE/M3

Military platforms

Military platforms (ships, aircraft, helicopters, battle tanks, UAVs, etc.) can be very complex environments from an electromagnetic point of view. They typically include hundreds of antennas belonging to multiple systems of all types (communications, navigation, radar, weapons guidance, electronic warfare, etc.) sharing a very small space on the ship’s topside (cosite). These systems integrate powerful transmitters together with highly sensitive receivers, operating over the entire frequency range, from LF to K-band (10 KHz to 36 GHz).

In this complex context, transmitters can sometimes cause performance losses, make operation impossible or even cause permanent damage (burnout) to the receivers, due to the interference caused to them, or even generate situations of potential danger to personnel, weapons or fuel.

Effective management

Electromagnetic Environmental Effects

The effective management of these issues is referred to globally as E3 (Electromagnetic Environmental Effects) and has taken on a fundamental role in the early design stages of a modern military platform. Within E3 are key disciplines such as:

  • Electromagnetic Compatibility (EMC)

  • Electromagnetic Interference (EMI)

  • Hazardous radiation (RADHAZ)

  • Hazardous radiation to personnel (HERP)

  • Hazardous armament radiation (HERO)

  • Hazardous radiation for fuels (HERF)

Experience and leadership

Leadership in electromagnetic simulation

The team of professors/researchers SC7-B of the University of Vigo (UV), in cooperation with the Computational Electromagnetics team (CEM) of the University of Extremadura (UEx), an inter-university research group UV-UEx, hereafter referred to as EM3W group, has been collaborating for many years with the Spanish Navy, Navantia, Indra and other national and foreign organisations and companies, carrying out electromagnetic simulations of E3, radar and electronic warfare problems on board ships and other complex platforms (aircraft, helicopters, battle tanks, etc.). ). This team has grown over the last 25 years, acquiring experience, knowledge, infrastructures and its own simulation tools that have led it to be today in a leading position worldwide when it comes to tackling electromagnetic simulation problems in the fields of E3 (EMC, EMI, EMR or RADHAZ), radar and electronic warfare.

Electromagnetic Environmental Effects en una embarcación

Por todo ello, se puede asegurar que actualmente no existe en el mercado ninguna empresa ni organismo que ofrezca la posibilidad de contratar los servicios de un equipo con los conocimientos, la experiencia y los recursos (tanto de software como de infraestructuras de simulación y experiencia) semejantes a los que ofrece el equipo EM3W, en el ámbito de la simulación electromagnética de sistemas a bordo de plataformas reales complejas. Precisamente, la complejidad de este tipo de trabajos y la gran competitividad en base a la calidad de los resultados ofrecidos, provocó un incremento casi exponencial en la demanda de estudios en E3, que motivó a las Universidades de Vigo y de Extremadura a crear una spin off, EM3Works, para la explotar de dichas capacidades.

Therefore, it is safe to say that there is currently no company or organisation on the market that offers the possibility of contracting the services of a team with the knowledge, experience and resources (both software and simulation infrastructures and experience) similar to those offered by the EM3W team, in the field of electromagnetic simulation of systems on board complex real platforms. Precisely, the complexity of this type of work and the high competitiveness based on the quality of the results offered, caused an almost exponential increase in the demand for E3 studies, which motivated the Universities of Vigo and Extremadura to create a spin off, EM3Works, to exploit these capabilities.

Exclusivity and leadership

Pillars of the EM3W group

Experience

This team has been successfully involved in the design of the new ships built by Navantia for the Spanish Navy (and other navies of other countries) over the last 25 years, as well as having carried out similar studies on older ships as part of various modernisation programmes. Among others, antenna designs, EMC, EMI and hazardous radiation level studies (RADHAZ), carried out on ships such as LHD, F-310 (Norway), F-105, AWD (Australia), BAC, BAM, AAOR (Australia), KSA (Saudi Arabia), POLA (Mexico), F-110, etc.; battle tanks (VCR8x8), helicopters (sixth and tenth squadrons of the Spanish Navy), aeroplanes (F-18), UAVs, etc. All the professors and researchers belonging to the team have NATO SECRET security guarantees for the handling of classified documents. The two professors leading this group are members of the SET-251 group, Ship Radar Signature Management Benefit to Ships, of the NATO Sensors and Electronics Technology (SET) panel, representing Spain in this working group/technical discussions.

Supercomputing resources

The EM3W group has high-performance supercomputing resources in its own supercomputing cluster, specifically a cluster consisting of 14 computing nodes with a capacity of 600 cores and 16 TB of RAM valued at more than 1,000,000 euros. The maintenance, management and renewal costs of such an infrastructure represent an investment of more than 120,000 euros per year. Apart from their own supercomputing resources, both groups have access to singular supercomputing facilities such as CESGA (Centro de Supercomputación de Galicia) and CENITS (Centro Extremeño de Investigación, Innovación Tecnológica y Supercomputación), among others.

Simulation software

The EM3W team has its own exclusive and highly advanced electromagnetic simulation software (called M3), which is perfectly adapted to the needs of the projects proposed in this line of work. Precisely the exploitation of the M3 software is the origin and the basis on which the EM3W spin-off, created in 2019 by the University of Vigo and the University of Extremadura, is based.

Measuring capacity

As a complement to the simulation capacity, the COM group has unique facilities of high value, with capacity for antenna measurements, radar and EMC pre-certifications, this is the Radioelectric Measurements Laboratory of the (LMR) University of Vigo