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Naval Defense and Underwater Acoustics


DAKA / BTBM - Acoustic Deceptive Development for Submarines / Computer Based Simulation Model

It is a modeling and simulation tool in which tactics are developed that enable submarine and surface platforms under torpedo threat to pour acoustic decoys and jammers in a predefined order and perform evasion maneuvers.

  • Defining torpedo tactics
  • Avoidance maneuver
  • Dummy/stirrer operating modes and pour pattern
  • Defining the threat situation as a scenario
  • Defining a sound velocity profile
  • Defining underwater bottom nature and profile
  • Torpedo threat detection
  • Heavy/light torpedo selection
  • Torpedo guidance behavior and sonar identification
  • Acoustic deceptive and confusing identification
  • Submarine/surface platform and sonar identification


  • Torpedo/platform/decoy/scrambler motion analysis
  • Torpedo phase change analysis
  • Torpedo and platform sonar data analysis
  • Acoustic decoy/scrambler data analysis
  • Pass/fail tactical analysis
  • Best tactical choice
  • Tactical comparison
  • Play back and forth in the timeline
  • Generate analysis report
  • Data export to Microsoft Excel
  • Identifying harnesses with scenario and tactics
    • Single harness: Two-dimensional animation and preliminary analysis
    • Multiple harnesses: Statistical analysis
  • Harness data display instant change
  • Replay at different speeds


    • 4 and 6 DOF (Degrees Of Freedom) motion modeling
    • Underwater acoustic propagation modeling (Ray Trace)
    • Guidance and motion modeling suitable for torpedo phases
    • Modeling cheaters' torpedo detection, evaluation, and cheating behaviors
    • Modeling the noise emitting behavior of mixers

It is subject to the sales license to be given by the Ministry of National Defense.

DATAS - Submarine Tactical Simulator

It is a computer-based training simulator developed for submarine commanders and combat crews, with the aim of training tactical and operational methods. Considering the importance of the “applied training” approach, the system allows the creation of different training scenarios for different tactical behaviors such as scanning, engagement, attack and evasion.

DATAS, an onshore system, consists of three physical parts:

    • Training control room: It is the place where the trainers control the simulation system, prepare the scenarios to be used in the training and run the training scenarios.
    • Switchboard room: It is the place where the trained personnel take the tactical and operational decisions and perform the training.
    • Debriefing room: It is the place where the trainers evaluate the training performance on the wide screen with the help of debriefing and analysis tools within the simulation.


  • Simulation of submarine switchboard system and consoles
  • Cylindrical array sonar
  • Flat array sonar
  • Passive rangefinder sonar
  • Intercept passive sonar
  • Active sonar
  • Radar and ESM (Electronic Support Measures)
  • LINK/ROL-11
  • Torpedo and guided missile


  • Fire Control and Target Movement Analysis (TMA)
  • Submarine navigation simulation
  • Trace table simulation
  • Underwater environment modeling
  • Platform and ambient noise modeling
  • Acoustic propagation modeling (Normal Mode and Ray Trace)
  • Target modeling with autonomous behavior
  • Submarine Defense Warfare
  • Ability to apply DSH tactics

It is subject to the sales license to be given by the Ministry of National Defense.


SHIP D/G - Onboard Automatic D/G System

The Ship D/G System uses D/G coils that are conveniently placed on the ship, creating an equal-sized but opposite direction to the ship's magnetic track and suppressing the ship's magnetic track. Depending on the position and route of the ship, currents at appropriate values are printed on the D/G coils and the magnetic trace of the ship is kept within the desired limits. The magnetic trace of the ship with the D/G System active decreases and the system shortens the detection distance of the magnetic sensors in the mines. Thus, the risk of mine explosion is reduced. Ship D/G System serves on Turkish Navy Island Class corvettes.

It is subject to the sales license to be given by the Ministry of National Defense.

SATEL - Underwater Telephone

Underwater Telephone is a communication system, all of which are microprocessor-controlled, providing communication between surface/underwater ships via underwater acoustic waves.

The use of upper and lower sideband (SSB treatment) with suppressed carrier frequency allows to obtain high signal-to-noise ratio at high transmission bandwidth. The carrier frequency is fixed (quartz stabilized) and is designed as NATO frequency or adjustable between 2-40 kHz for the upper sideband and 5-43 kHz for the lower sideband.

When operating within a convoy, it is possible to communicate with the appropriate counter station using different frequencies.

The transmission bandwidth is reduced in telegraph mode for optimum signal-to-noise ratio. The transducer group is connected to the main unit with the help of an interconnection box.

The control and display unit is located in the integrated navigation rack

  • Hydrostatic pressure: equipment subjected to hydrostatic pressure is resistant to 5 MPa (50 bar). Test for these devices
    pressure can be up to 6.25 MPa (62.5 bar).
  • underwater telephone and telegraph system
  • Transmitting and receiving amplitude modulated sound waves in water with transducers
  • Communication with appropriate counter stations
  • Selectable operating frequencies
  • Independent audit and monitoring
  • Air-cooled system during operation
  • Condensation prevention in stand-by
  • Interface with communication system for recording of audio signals
  • Standard frequency: NATO frequency; quartz stabilized
  • Adjustable carrier frequency (adjustable in 1 Hz steps)
  • Frequency is displayed on the integrated LCD as a numerical value and with a pointer.
  • Upper sideband (USB): 2-40 kHz
  • Lower sideband (LSB): 5-43 kHz
  • Power output: 100W at 35 Ω
It is subject to the sales license to be given by the Ministry of National Defense.

(SGE) Cyber Security Institute

The Cyber Security Institute, which was established to carry out studies to increase the national cyber security capacity, carries out research and development activities in the field of cyber security; carries out solutions-oriented projects for military institutions, public institutions and organizations and the private sector.

The main fields of activity of our institute, which has made a significant contribution to the creation of cyber security knowledge and tactical infrastructure in our country with many successful projects to date, are secure software development, penetration tests and vulnerability analysis.

6-yze card logo

(IZE) Artificial Intelligence Institute

Artificial Intelligence Institute is the first institute established within the scope of TUBITAK centers and institutes, which cuts the sectors and research fields horizontally and focuses directly on the emerging technology field. For this reason, it constitutes an innovative model in terms of both the open innovation and co-development approach of the institute and its focus on emerging technology.

Artificial Intelligence Institute aims to develop core technologies in the field of artificial intelligence and bring these innovations from the forefront of science to the use of the industry as soon as possible. Focusing on the transformative potential of artificial intelligence, it will continue to play its part in pioneering efforts to create and sustain artificial intelligence-based innovation, growth and productivity in Turkey. Working with industry and public institutions in Turkey, together with other organizations within the artificial intelligence ecosystem, spreading the use of artificial intelligence and increasing the workforce specialized in this field are among its primary goals.



By joining TÜBİTAK BİLGEM as a Researcher, you can contribute to developments in the fields of information technology, information security, and advanced electronics. You'll have the opportunity to make your mark on innovations, closely follow advancements, enhance your skills, and shape your future by advancing in your career.

You can apply to our currently open positions through the TÜBİTAK Job Application System .

Application Conditions

Conditions for Job Application:

  • Foreign language proficiency: Attaining appropriate scores in the exam types specified in the announcement or studying in a program that is 100% in English for undergraduate education.
  • Fulfilling specific requirements stated in the announcement (such as undergraduate department, years of experience, expertise, etc.).
  • Satisfying the formula score:

For Candidates with Less than 3 Years of Experience:

Weighted Graduation Average + (10,000 / University Placement Exam Ranking) + Additional Score* >= 3.20


For Candidates with 3 Years and More of Experience:

Weighted Graduation Average + (10,000 / University Placement Exam Ranking) + 5*[1 / (1 + e^(5 - years of experience) ) ] + Additional Score* >= 3.20

*Candidates who have achieved rankings and awards in national and international competitions will receive an additional score of 0.3.


Competence Centers

Candidate Researcher

Students in the 3rd and 4th years of relevant engineering departments at universities can apply to our Part-Time Candidate Researcher positions through our Job Application System at kariyer.tubitak.gov.tr. By doing so, they can gain work experience at TÜBİTAK BİLGEM during their university years.

This program does not have an end date. Candidate Researcher personnel working part-time during their university period can seamlessly transition to full-time employment as Researcher personnel at TÜBİTAK BİLGEM without interrupting their career journey after graduating from the undergraduate program.

Application Conditions

Conditions for the Candidate Researcher Program:

  • Being a 3rd or 4th-year student in the relevant departments specified in the announcements at universities.
  • Foreign language proficiency: Achieving appropriate scores in the exam types specified in the announcement or studying in a program that is 100% in English for undergraduate education.
  • Satisfying the formula score:

Weighted Graduation Average + (10,000/University Placement Exam Ranking) + Additional Score* >= 3.20

*Candidates who have achieved rankings and awards in national and international competitions will receive an additional score of 0.3.


Discover institutes laboratories technologies products projects of BİLGEM.


TÜBİTAK BİLGEM builds its basic strategy for the future on qualified knowledge and qualified people focused on national targets in the research, technology development and innovation ecosystem.

Starting from the understanding that "the most important resource of a country is generally people, specifically scientists," TÜBİTAK encourages and supports our youth from an early age. In this context, providing young minds with early exposure to technology production is crucial for the success of our National Technology Move. Accordingly, TÜBİTAK BİLGEM offers internship opportunities to undergraduate students from universities every year.

You can follow internship announcements and submit your applications through the Career Gateway at https://kariyerkapisi.cbiko.gov.tr.

You can access frequently asked questions about internships at TÜBİTAK BİLGEM from here. 

Application Conditions
  • Students enrolled in undergraduate (2nd year and above) and associate degree programs in departments offering education in universities and conducting insurance procedures through the higher education institution to which they are affiliated can benefit from the internship opportunity.
  • For undergraduate and associate degree students, a minimum Weighted Grade Point Average (GPA) of 2.50 out of 4 is required. The GPA of candidates with a 100-point system is converted to a 4-point system based on the "Conversion Table of Grades from the 4-Point System to the 100-Point System" published by the Higher Education Council.
  • There is no requirement for a foreign language certificate during the internship application process.
  • Students enrolled in departments such as Forensic Computing Engineering, Computer Sciences, Computer Science and Engineering, Computer Engineering, Computer and Informatics, Computer and Software Engineering, Information Systems Engineering, Electrical and Electronics Engineering, Control Engineering, Control and Computer Engineering, Control and Automation Engineering, Mechanical Engineering, Mechatronics Engineering, Telecommunication Engineering, or Software Engineering in universities can apply for internships.

Internship applications are accepted between December and January, and the internship period covers June, July, and August.



Scholar assignments are made for research and development activities for undergraduate, master's, doctoral students, and post-doctoral researchers. In our center, scholars are appointed for practical purposes in externally funded, TARAL, or European Union projects.

You can contact us via the email address bilgem.yetenekkazanimi@tubitak.gov.tr to apply to be a scholar.
Application Conditions

(1) The conditions for undergraduate scholars in externally funded projects conducted by the institution are specified below:

  •  Being a student continuing undergraduate education at higher education institutions established in Turkey (excluding foreign language preparatory students).
  • Having a weighted cumulative GPA for previous years, excluding preparatory years, based on the university's grading system, which satisfies the formula score and foreign language requirements in the recruitment criteria.
  • Completing at least the first semester of the first year of undergraduate education.
  • Having a GPA of "+3.00" and a University Placement Exam Ranking of "10,000 ≥" for undergraduate general average.
  • For foreign students placed in Turkish universities without taking the ÖSYM exam or for those who completed undergraduate education through exams such as Vertical Transfer Exam, the lowest university placement ranking of the department from the year the candidate started the undergraduate program is considered in the ranking formula.

(2) The conditions for master's degree scholars in externally funded projects conducted by the institution are specified below:

  • Being a student continuing master's degree education at higher education institutions established in Turkey (excluding special students and foreign language preparatory students).
  • Currently pursuing a master's degree in the project's field of responsibility.

(3) The conditions for doctoral students in externally funded projects conducted by the institution are specified below:

  • Being a student continuing doctoral education at higher education institutions established in Turkey (excluding special students and foreign language preparatory students).
  • Currently pursuing a doctorate in the project's field of responsibility or conducting a doctorate in areas determined within the framework of the YÖK-TÜBİTAK Doctoral Program Project Collaboration Protocol. (Students in medical specialization and artistic proficiency are accepted as doctoral students.)

MILSEC 4 - Secure IP Terminal


While the MİLSEC-4 terminal offers an up-to-date solution for next-generation secure communication (voice, data and video) in IP networks, it provides an uninterrupted communication service by maintaining the compatibility of secure voice communication in PSTN networks with PSTN secure phones in use.

Configuration, surveillance and software update processes of MILSEC-4 terminals are carried out securely remotely using the Security Management Center (GYM). MİLSEC-4 terminal is capable of IP Network Key Loading (IPAAY) through secure communication with GYM without the need for an additional device.

MİLSEC-4 terminals are interoperable with MİLSEC-1A and MİLSEC-2 phones and offer the opportunity to replace MİLSEC-1A and MİLSEC-2 phones without interruption in the gradual transformation of PSTN networks to next generation IP networks.


  • End-to-end secure voice communication in PSTN networks
  • End-to-end secure voice, image and data transmission in IP networks
  • NATO SCIP compliance on IP networks
  • Compatibility with commercial SIP products
  • Interoperability with MILSEC1A and MILSEC2 secure phones
  • National and AES crypto algorithms
  • Remote software update
  • Easy operation with touch screen

It is subject to the sales license to be given by the Ministry of National Defense.