success stories

Infrared Search and Track System – Infrared Search and Track (IRST)


Eurofighter Typhoon / Frigate F-110


Aerospace and Defense | Naval

Capabilities used

  • Systems engineering.
  • Image processing algorithms.
  • Detection and monitoring algorithms.
  • Real-time processing.
  • Graphic representation systems.
  • Artificial Intelligence (AI).


For three decades TECNOBIT- Oesia Group has been designing and developing Infrared Search and Tracking Systems, more commonly known by its acronym IRST (Infrared Search and Track).

IRST systems are based on a series of electro-optical sensors providing the platform with a system capable of detecting and tracking multiple targets automatically from their thermal emissions, without emitting any radiation, which significantly increases the stealth capability of the platform.


During this stage and through our participation in various programs, TECNOBIT- Oesia Group has developed all the technological blocks of the IRST systems including:

  • Optronic sensors.
  • Real-time processing system.
  • Image processing algorithm.
  • Algorithm for detection and follow-up.
  • User interface.


Our infrared search and tracking solutions are present in airborne platforms, Eurofighter Typhoon, and naval platforms, F-110 Frigate.

In the first place, our participation in the EUROFIRST consortium participated by Selex ES (Italy), Tecnobit (Spain) and THALES Optronics (UK), which meant the participation in the Eurofighter Typhoon program for the development of the PIRATE, allowed Tecnobit to be at the forefront of Spanish companies in the development of infrared search and tracking systems.

The PIRATE not only provides thermal imaging (FLIR), but also incorporates IRST capability, automatic target search and detection, making it the most advanced sensor on the market. TECNOBIT-Oesia Group's responsibility in this project includes the development and production of all the electronics that make up the video chain and part of the tracking electronics including the image processing algorithms.


Thanks to our successful participation in the design and development of the PIRATE FLIR, TECNOBIT- Grupo Oesia was selected, in collaboration with INDRA, to undertake the design and development of the IRST system for the next generation of the Spanish Navy's F-110 frigates. This new project, in which we are responsible for developing the image processing and detection algorithm, the processing core and optronic blocks for both detection and identification, represents a technological milestone at national level, since for the first time IRST systems will be incorporated to our naval platforms, which will significantly improve the capacity for autonomous surveillance in a maritime environment.