PhD Candidate in RF/antenna design for GNSS reflectometry from small satellites

This is NTNU

NTNU is a broad-based university with a technical-scientific profile and a focus in professional education. The university is located in three cities with headquarters in Trondheim.

At NTNU, 9,000 employees and 43,000 students work to create knowledge for a better world.

You will find more information about working at NTNU and the application process here.

Video: https://youtu.be/Xt-yHCN5QS0About the position

Are you motivated to take a step towards a doctorate and open up exciting career opportunities? As a PhD Candidate with us, you will work to achieve your doctorate, and at the same time gain valuable experience that qualifies you for a further career in higher education and research, in and outside academia.

We are searching for a creative, skilled, and ambitious candidate for our activities on how we can detect objects at sea using GNSS reflectometry. The same system can also be used to detect GNSS jamming and spoofing events from small satellites in low Earth orbit (LEO). The PhD position will be at the NTNU SmallSat Lab, see www.ntnu.edu/smallsat for more information about the lab.

About the project

The signals originating from the global navigation satellite systems (GNSS) when they are reflected from the Earth, contain information about the geographical area the signals are reflected by. For signals reflected by the ocean, we can infer wave height, sea ice coverage and winds using GNSS-reflectometry (GNSS-R). In this project, we want to go further and investigate if we can use these signals of opportunity to detect objects, such as ships. Actions by so-called “dark ships”, meaning ships that operate with no AIS transponder, may contribute to illegal fishing, trafficking, sabotage and other less desired activities. Currently, there are several systems in use to monitor global ship traffic, each with different properties. Optical systems may provide excellent resolution on a cloud-free day. Synthetic aperture radars (SAR) deliver image products even through clouds, but they are expensive. Our main research question is: How can small and relatively cheap satellites with passive radio payloads utilize reflected signals of opportunity to contribute to a better maritime situational awareness?

As a PhD candidate in this project, your work will be to research how this monitoring can be done, and how it can feed into a larger system. Your focus will be on RF- and antenna design for reception of reflected GNSS signals. The research will also involve using software-defined radios (SDR) and digital signal processing for antenna beamforming.

The payload may also be used to detect GNSS jamming and spoofing events. The project is funded by the Norwegian Research Council, under the project number 358547. As a PhD candidate, you will collaborate with others in the Small Satellite Lab, in a team with other PhD candidates and researchers within related topics.

Be prepared for changes to your work duties after employment.

The candidate will: Conduct research and development of antenna arrays suited for receiving reflected GNSS signals from the Earth’s surface on the feasibility of GNSS-R and other signals of opportunity. Tasks will be literature reviews, simulations, data analysis from similar missions and/or data from project partners. The research will also include planning and conduction of field experiments with corresponding data analysis. Furthermore, the candidate will contribute to the design of a suitable GNSS-R payload, including RF architecture and on-board signal processing system. The research will also involve development of suitable on-board (edge) data processing techniques to analyse GNSS-R recordings for object detection and/or jamming/spoofing detection.

PLEASE NOTE: For detailed information about what the application must contain, see paragraph “About the application”.

The appointment is to be made in accordance with NTNU’s guidelines for recruitment positions and Regulations for the degrees philosophiae doctor (ph.d.) and philosophiae doctor (ph.d.) in artistic development work at the Norwegian University of Science and Technology (NTNU) for general criteria for the position.

The appointment is carried out in accordance with the principles of the State Employees Act, and Export control (legislation that regulates the export of knowledge, technology and services). Candidates who, after assessment of the application and attachments, are considered to be in conflict with the criteria in the latter act, will not be able to be employed.

The person hired must be eligible for security clearance at level CONFIDENTIAL. If hold a non-Norwegian citizenship. You can see Section 8-7. “Clearance of persons holding foreign citizenship” of the Act relating to national security (Security Act).

Personal characteristics

To complete a doctoral degree (PhD), it is important that you are able to:

Emphasis will be placed on personal qualities.

As a PhD Candidate at NTNU, you will have access to employee benefits.

Diversity

Diversity is a strength, and at NTNU we aim to be an employer that reflects the diversity in society and that makes use of the potential of the population's collective skills. Our vision is Knowledge for a better world and our values are creative, critical, constructive and respectful. We believe that an organization that is equal, diverse and gender-balanced is essential for us to achieve our goals.

We strive to attract employees with different skills, life experiences and perspectives to contribute to even better problem solving of our societal mission in research and education.

If you think this position is relevant and interesting, we encourage you to apply, regardless of gender, functional ability and cultural background, or whether you have been out of work for a period of time.

At NTNU we want to increase the proportion of women in scientific positions. We have a number of measures to promote equality.

Salary and conditions

In the position of PhD Candidate, code 1017, your gross salary will normally be NOK 550 800,-per annum depending on qualifications and seniority. A 2% statutory contribution to the State Pension Fund is deducted from the salary.

The employment period is 3 years for the doctoral work in addition to up to 12 months/year of career promotion work that will be agreed when you start.

For employment as a PhD Candidate, it is a prerequisite that you gain admission to the PhD programme in Electronics and Telecommunication, https://www.ntnu.edu/studies/phet within three months of your employment contract start date, and that you participate in an organized doctoral programme throughout the period of employment.

The position is conditional on external funding

As an employee at NTNU, it is important that you keep yourself up to date with academic and organizational changes and adapt to them.

For the necessary professional and social interaction, it is a prerequisite that you are physically present and available to the institution on a daily basis.

The appointment is carried out in accordance with the principles of the State Employees Act, and Export control (legislation that regulates the export of knowledge, technology and services). Candidates who, after assessment of the application and attachments, are considered to bein conflict with the criteria in the latter act, will not be able to be employed.

About the application

The attachments (including a description of your scientific work) must accompany the application as these documents form the basis of the application assessment. The documents must be in English.

Please note: the application will only be assessed on the basis of the information we have received by the application deadline. Therefore, make sure that your application clearly shows how your skills and experience meet the criteria described above. The application and all attachments must be sent electronically via Jobbnorge.no. If you are invited to an interview, you must bring certified copies of certificates and diplomas upon request.

The application must include:

• CV

Optional: Include a project outline containing your thoughts for an overall description of research questions, theoretical perspectives you would assess and methodological design for the project (maximum 1500 words/4 pages)

If all, or parts, of your education has been taken abroad, we also ask you to attach documentation of the scope and quality of your entire education, both Bachelor's and Master's education, in addition to other higher education. If your institution uses “diploma supplement” (normal for most European institutions), you must attach this. A description of the documentation required can also be found here. If you already have a statement from Norwegian Directorate for Higher Education and Skills (HK-dir), please attach this as well.

Joint work will be considered. If it is difficult to identify your contribution to joint work, you must attach a brief description of your participation.

When assessing the best qualified, we emphasize necessary qualifications such as education, experience and personal suitability. Motivation for the position, ambitions, and potential for research will also count when assessing the candidates.

NTNU recognizes a wide range of academic contributions and has committed itself to The San Francisco Declaration on Research Assessment and CoARA (responsible assessment of research and recognition of a greater breadth of academic contributions in accordance with NTNU's social mission).

General information

A public list of applicants with name, age, job title and municipality of residence is prepared after the application deadline. If you wish to be exempt from entry on the public applicant list, this must be justified. Assessment will be made in accordance with current legislation. You will be notified if the exemption is not granted.

If you think this position looks interesting and in line with your qualifications, you are welcome to apply.

If you have any questions about the position, please contact Professor Egil Eide, telephone (+47) 416 91 512, email: egil.eide@ntnu.no. If you have any questions about the recruitment process, please contact HR, e-mail: hr@ies.ntnu.no

Application deadline: 11.09.2026

For practical information about working at NTNU, please visit this webpage.

The city of Trondheim is a modern European city with a rich cultural scene. Trondheim is the tech capital of Norway with a population of 200,000. The Norwegian welfare state, including healthcare, schools, kindergartens and overall equality, is probably the best of its kind in the world. Professional subsidized day-care for children is easily available. Furthermore, Trondheim offers great opportunities for education (including international schools) and possibilities to enjoy nature, culture and family life and has low crime rates and clean air quality.