Internship | Space-based Transmitters of Opportunity for Passive Radar
2 maanden geleden
About this position
Passive radars are defined as a technology that uses signals transmitted by other (communication) systems (i.e., transmitters of opportunity), to perform target detection and parameter estimation (e.g., position, velocity, size, etc.) of the target. Recently, several companies have deployed broadband low-orbit communication satellite constellations (e.g., Starlink, OneWeb, Kuiper Systems) to provide global internet access services. These emerging constellations are considered promising candidates as space-based transmitters of opportunity for passive radar applications due to their advantageous characteristics in terms of global coverage, high bandwidth, high transmitted power, and network density and robustness. However, one of the main challenges posed for the opportunistic use of their transmissions is the lack of publicly available information about their signal properties.
What will be your role?
The goal of the internship is to analyse and experimentally validate the possibility of using space-based transmitters of opportunity for passive radar applications.
The approach is as following:
During the thesis, you can fall back on the expertise in the TNO Radar Department.
What we expect from you
We are looking for an enthusiastic MSc. student with affinity for radar technology Preferably with some background knowledge on radar systems and experience in MATLAB and/or Python.
What you'll get in return
You want to work on the precursor of your career; a work placement gives you an opportunity to take a good look at your prospective future employer. TNO goes a step further. It’s not just looking that interests us; you and your knowledge are essential to our innovation. That’s why we attach a great deal of value to your personal and professional development. You will, of course, be properly supervised during your work placement and be given the scope for you to get the best out of yourself. Naturally, we provide suitable work placement compensation.
-
Internship | Target-matched radar waveforms
3 maanden geleden
The Hague, Nederland TNO VoltijdWhat will be your role? The waveform design is one of the critical aspects in radar performance optimisation. Traditionally chirped waveforms are applied in radar, designed for signal-to-noise ratio optimisation when applying a matched filter for detection. This is however only one criterion that can be used for waveform design. Currently there is a...
-
Internship | Target-matched radar waveforms
4 weken geleden
The Hague, Nederland TNO VoltijdWhat will be your role? The waveform design is one of the critical aspects in radar performance optimisation. Traditionally chirped waveforms are applied in radar, designed for signal-to-noise ratio optimisation when applying a matched filter for detection. This is however only one criterion that can be used for waveform design. Currently there is a...
-
Internship | Applying deep learning to time series of radar data
3 maanden geleden
The Hague, Nederland TNO VoltijdWhat will be your role? Nowadays, deep learning techniques are used in a wide variety of domains, including the radar domain. In the radar domain, deep learning is primarily applied for classification based on some 2D representation of the radar data, e.g., an Inverse Synthetic Aperture Radar (ISAR) image or a spectrogram (i.e., an image of signal...
-
Internship | Applying deep learning to time series of radar data
4 weken geleden
The Hague, Nederland TNO VoltijdWhat will be your role? Nowadays, deep learning techniques are used in a wide variety of domains, including the radar domain. In the radar domain, deep learning is primarily applied for classification based on some 2D representation of the radar data, e.g., an Inverse Synthetic Aperture Radar (ISAR) image or a spectrogram (i.e., an image of signal...
-
Internship | Recurrent deep learning applied to radar data
3 maanden geleden
The Hague, Nederland TNO VoltijdWhat will be your role? Radar observations are hampered by reflections from the background surrounding an object of interest (so-called radar clutter) and sometimes interference of other emitters. Radar clutter may exhibit some temporal structure, e.g., radar reflections from rolling sea waves or from the rotating blades of a wind turbine. Also...
-
Internship | Recurrent deep learning applied to radar data
4 weken geleden
The Hague, Nederland TNO VoltijdWhat will be your role? Radar observations are hampered by reflections from the background surrounding an object of interest (so-called radar clutter) and sometimes interference of other emitters. Radar clutter may exhibit some temporal structure, e.g., radar reflections from rolling sea waves or from the rotating blades of a wind turbine. Also...
-
Internship | Frequency Selective Surfaces
3 maanden geleden
The Hague, Nederland TNO VoltijdAbout this position Frequency selectivity is crucial for radar system. Spurious frequencies of the higher order harmonics generated in the chain of a front-end radar system can interfere or even damage other systems located in the vicinity. Frequency filtering operations are usually implemented along the RF chain of a transmitter (TX) by electronic...
-
Internship | Frequency Selective Surfaces
4 weken geleden
The Hague, Nederland TNO VoltijdAbout this position Frequency selectivity is crucial for radar system. Spurious frequencies of the higher order harmonics generated in the chain of a front-end radar system can interfere or even damage other systems located in the vicinity. Frequency filtering operations are usually implemented along the RF chain of a transmitter (TX) by electronic...
-
The Hague, Nederland TNO VoltijdWhat will be your role? Deep learning techniques typically thrive when large sets of labelled data are available. In the radar domain, labelled data tend to be scarce depending on the application area. So it would be beneficial if all available data could be used. However, in practice measurements may be made with varying radar waveform settings (such...
-
The Hague, Nederland TNO VoltijdWhat will be your role? Deep learning techniques typically thrive when large sets of labelled data are available. In the radar domain, labelled data tend to be scarce depending on the application area. So it would be beneficial if all available data could be used. However, in practice measurements may be made with varying radar waveform settings (such...
-
Internship | Foldable Reflectarray for small cubesat applications
3 maanden geleden
The Hague, Nederland TNO VoltijdAbout this position How can high-gain antennas be designed for small Cubesat systems? What will be your role? Reflectarrays are an attractive solution for high gain antenna system in space (Earth observation, SATCOM, etc.). High gain antennas usually are implemented by using quasi-optical systems realized by one or more curved reflectors...
-
The Hague, Nederland TNO VoltijdAbout this position How can high-gain antennas be designed for small Cubesat systems? What will be your role? Reflectarrays are an attractive solution for high gain antenna system in space (Earth observation, SATCOM, etc.). High gain antennas usually are implemented by using quasi-optical systems realized by one or more curved reflectors...
-
The Hague, Nederland TNO VoltijdWhat will be your role? Deep learning techniques usually thrive when large sets of labelled data are available. In the radar domain, labelled data tend to be scarce depending on the application area. By exploiting expert knowledge it may be possible to improve the training process and overall performance when using only small labelled data sets. From...
-
The Hague, Nederland TNO VoltijdWhat will be your role? Deep learning techniques usually thrive when large sets of labelled data are available. In the radar domain, labelled data tend to be scarce depending on the application area. By exploiting expert knowledge it may be possible to improve the training process and overall performance when using only small labelled data sets. From...
-
Internship | Compact Filters for Phased Arrays
3 maanden geleden
The Hague, Nederland TNO VoltijdWhat will be your role? Active phased array antennas must comply with stringent requirements in terms of sensitivity to interference caused by other nearby radiating systems, especially in complex platforms, which are populated by an ever-increasing number of sensors and communication systems. Radio frequency interference can cause a number of issues,...
-
Internship | Compact Filters for Phased Arrays
4 weken geleden
The Hague, Nederland TNO VoltijdWhat will be your role? Active phased array antennas must comply with stringent requirements in terms of sensitivity to interference caused by other nearby radiating systems, especially in complex platforms, which are populated by an ever-increasing number of sensors and communication systems. Radio frequency interference can cause a number of issues,...
-
The Hague, Nederland TNO VoltijdAbout this position Currently, wireless communication and radar sensing are two separate worlds. This is partly because radar mainly works at high frequencies (such as mmWave radar at 77 GHz) due to the required resolution and wireless communication currently only takes place below 6 GHz. In 6G, the differences in frequency will disappear, meaning...
-
The Hague, Nederland TNO VoltijdAbout this position Impedance matching networks are crucial parts of an (integrated) power amplifier and have a big impact on both the performance and size of the amplifier. For the design of these matching networks on a circuit level, multiple techniques exist which enables the automatic synthesis to a large extend. The optimization of a power...
-
Internship | Geospatial analysis for military decision-making
1 maand geleden
The Hague, Nederland TNO VoltijdAbout this position Within military operations, tactical decisions are made to achieve specific goals during the mission. Tactical decision-making is performed at various layers (from brigades to platoons or even single soldiers) and contains key aspects like terrain analysis, fire support and maneuver, enemy assessment etc. Tactical decisions in...
-
Internship | Geospatial analysis for military decision-making
4 weken geleden
The Hague, Nederland TNO VoltijdAbout this position Within military operations, tactical decisions are made to achieve specific goals during the mission. Tactical decision-making is performed at various layers (from brigades to platoons or even single soldiers) and contains key aspects like terrain analysis, fire support and maneuver, enemy assessment etc. Tactical decisions in...
