NLES: Radio frequency systems

The project is responsible for the design of the system for the radio frequency components of the Navigation Land Earth Stations (NLES), which are ...


The project is responsible for the design of the system for the radio frequency components of the Navigation Land Earth Stations (NLES), which are part of the EGNOS system (European Geostationary Navigation Overlay Service), developed by the European Space Agency (ESA ), the European Commission and Eurocontrol.

These stations transmit correction and integrity messages to EGNOS geostationary satellites, which are ultimately responsible for radioing the SBAS signal to users. These signals allow to obtain a greater precision of the estimation of the position of the users by applying the corrections of the measurement errors of the signal.

EGNOS bases its activity on geostationary satellites and ground stations that constantly provide information on errors in GPS signals, providing improvements to the performance of this navigation system. In this sense, the radio frequency components in the NLES are responsible for generating, modulating and adapting the frequency of signals to be correctly received by users.

The term radiofrequency refers to frequencies that are present within the electromagnetic spectrum and that are used in radio communications, located between 3 hertz (Hz) and 300 gigahertz (GHz). These frequencies are useful for a wide variety of applications such as military, satellite navigation, radars, radio, among others.


PUPITRE on-board ticketing device

The project aims to implement the operating system of the PUPITRE on-board device. It is a ticketing team, which acts as an interface between the d...


The project aims to implement the operating system of the PUPITRE on-board device. It is a ticketing team, which acts as an interface between the driver, the Control Center, the Operation Assistance System (SAE) - NAUTA and with on-board equipment such as the Contactless validator, installed in a public transport unit.

PUPITRE, is a multifunctional device, in charge of managing the sale, recharge and validation of transport tickets (manual charges), which has a processor that allows to manage sales, recharge and validation operations in a short time and efficiently, in addition to configure and collect data from external validators.

It has additional functions that allow you to display information to the bus driver. Through this system, they can set shifts, have information on origin and destination, route lines, stops, emergencies, unit status, security protocols, among other technical data available on board the unit and subsequently transmit them via Ethernet to the Nauta, who in turn will transmit to a Control Center in charge.

For the implementation of the PUPITRE operating system, a C ++ software has been developed, which makes this device a fundamental tool for the integration of rates and intermodal; It allows data update operations (rates, policies and titles, among others), and the incorporation of new functionalities. Optionally, PUPITRE has access to a GPS module with basic functionalities provided by SAE - NAUTA.

Among the benefits of this device, stand out the intuitive use of the console through a touch screen, and access to specific data regarding the operation of the unit, giving the driver the possibility of knowing the status of the unit during the journey, and notify the control center of any contingency that may occur.


Missile Warming Procesor

The project aims to develop the connector board and processor motherboard for missile detection in airborne systems. This processor is included wit...


The project aims to develop the connector board and processor motherboard for missile detection in airborne systems. This processor is included within the MANTA system (Manpads, Threat, Avoidance) of DIRCM class (Directed Infrared Countermeasure) for self-protection of aircraft. It is based on an infrared (IR) laser, designed to counter terrorist attacks with guided infrared energy missiles of the MANPADS (Man Portable Air Defense Systems) type. In addition, it is complemented by two other components: a laser and an optronic block.

MANTA automatically tracks and counters search engines, using its high-energy IR laser beam capable of blocking the guidance system of all types of IR missiles. To do this, it emits a beam that "hides" the IR of the plane, adjusting to a small and manageable system that can be installed on board any aircraft. This action is performed immediately after the Missile Warning System (MWS) reports that it has detected potential threats from enemy missiles.

Operationally, MANTA aims to detect missiles in their launch phase and divert it from its trajectory. This system is capable of responding to simultaneous attacks from several missiles, for this it has an effective countermeasure sequence that does not require prior identification of the type of attacking missile.

In this sense, the connector plate and motherboard interconnect all the communication interfaces of the system (receiving antennas and identification and alert of missile emissions), supporting all the equipment linked to it.


ENCE V4: new Electronic Interlocking System

The project aims to develop a new interlocking. The V-cycle development standard is followed and tasks are performed at the system level (ENCEv4 as...


The project aims to develop a new interlocking. The V-cycle development standard is followed and tasks are performed at the system level (ENCEv4 as a whole), subsystem (HW, platform SW and application SW), and component. Therefore, tasks of specification, design, implementation and unit tests are carried out.

The complete system, the subsystems and the majority of the components are considered critical safety elements, for which they are entitled to the SIL-4 level according to the CENELEC EN 50129 standard. The Electronic Interlocking is divided into three subsystems: the HW, SW of platform and application SW.

The HW is prepared to communicate, either with digital inputs and outputs or through protocols with the different field elements such as signals, needles (engines that control the tracks that allow the train to change its direction between one track or another) or beacons (device which emits electromagnetic signals that allows communication between the track and the train), among others.

The platform SW controls the HW and manages the operating system. The main objective of this SW is to make the upper layer (application SW) of the HW independent. In this way, development is optimized, field installation is facilitated and the application SW is made independent of possible changes in the HW.

With respect to the application software, ENCE V4, is broken down into different modules to form a final application that can be tram, conventional train or high speed. This SW controls the field elements and safety logic that allows the safe movement of railway convoys. The most important criteria for the development of these components are safety, the flexibility to adapt to the clients and regulations of each country, the ease of deployment in the different interlocks and maintainability.

New electronic interlocking card:

In addition, within this project the hardware platform and the firmware of the various programmable logic devices of the new PCB cards for Electronic Interlocking are designed, programmed and validated. Each card is composed of microprocessors, programmable logic devices (FPGA), ADC (Analog-to-Digital Converter) devices, DC-DC converters, etc., which support various communications protocols, serial, Ethernet. They are multifunctional, that is, the same card allows a different number of functionalities that implies greater modularity, which allows reducing costs, production efforts and validation. In this sense, after the design and production of the PCB cards, unit tests of validation of the hardware prototypes are carried out, where the design specifications and functionalities are checked; In addition, test standards are used to validate the serial production of the hardware. Regarding firmware, Bench Test is carried out to verify the suitability of its design and development.


RESM U-212 1ST BASCH

The project's mission is the development and integration of an electronic defense system for submarines of the U-212 class. This system allows you ...


The project's mission is the development and integration of an electronic defense system for submarines of the U-212 class. This system allows you to discover any active radar in your environment and is able to facilitate the tracking and identification of the broadcasting platform in real time. The U-212 are fifth-generation non-nuclear submarines with a highly advanced design. They can operate at high speeds with diesel power or with an AIP (Air Independent Propulsion) system for a quiet advance, in addition, they can remain submerged for about three weeks without the need to climb to the surface. These submarines do not present vibrations, are extremely silent and, therefore, virtually undetectable. The electronic defense system developed is goniometric and provides these submarines with capabilities to detect the angle of arrival of radar pulses generated by other platforms, their analysis and classification. It is a passive system that does not require radar emission, with which it is possible to “see without being seen”. This system allows to locate practically 100% of the signals, including the weakest and low probability of detection, has a high potential for information processing and is able to identify the distinctive electronic fingerprint of any type of radar. In addition, it offers the opportunity to record the collected data for later analysis. The technical challenges of the project include the development and updating of complex electronic equipment for the implementation of this system on the U-212 platform. These equipments are highly critical since it is part of the head of the system, among its main functions is the digitization, compression and processing of the different signals of the electronic defense system.


ADMAIOREM S.L. - TU PUERTA HACIA EL FUTURO - CIF B84732171