Marco Driesen

		M. Sc. Marco Driesen Room: C-01.021 (ZEVS) Kaiserstraße 2, 24143 Kiel, Germany Phone: +49 431 880-6132 E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. ORCID: 0009-0007-3282-7458 Google scholar: Link

Research: Magnetic-acoustic Real-time MIMO SONAR Systems based on Thin-film Sensor Technology

The recent past has shown how vulnerable maritime infrastructure is to attacks. While there are already established methods of surveillance above water, the options for defending against attacks underwater are currently rather limited. Using SONAR technology it is possible to identify targets underwater. However, existing systems are currently limited in their application because, on the one hand, they are designed so that they can only be operated under certain conditions and, on the other hand, the sensors used are extremely cost-intensive.

Piezoelectric thin-film sensors represent an attractive alternative to conventional sensors due to their smaller dimensions and cost-effective production. These allow the use of corresponding sensors to be increased and new approaches to be pursued in the design of SONAR systems.

The aim is therefore to improve existing systems through the use of new sensors and the implementation of multistatic MIMO SONAR systems. Multistatics refers to the spatial separation of the transmitter and receiver structures. In a MIMO system, the transmission signals are also designed in such a way that spatial directivity is achieved on the transmission and reception sides.

Further interests:

Prototyping
Hardware Design
Adaptive Filters

Short CV

Time span	Details
2023 - current	Research assistant at the Christian-Albrechts-Universität zu Kiel, Kiel, Germany
2021 - 2023	M.Sc. in Electrical Engineering and Information Technology at the Christian-Albrechts-Universität zu Kiel, Kiel, Germany
2020	Internship at Raytheon Anschütz GmbH, Kiel, Germany
2017 - 2021	B.Sc. in Electrical Engineering and Information Technology at the Christian-Albrechts-Universität zu Kiel, Kiel, Germany

Publications

K. Gussow, B. Kaulen, F. Kühne, C. Kanarski, F. Röhrdanz, M. Driesen, S. Rautenberg, J. Abshagen, E. Mackensen, D. Meyners, E. Quandt, G. Schmidt: Untersuchung des Einflusses verschiedener Array- Öffnungswinkel bei MIMO-SONAR-Systemen, Proc. DAGA, Germany, 2024

We are delighted to announce that Marten Finck has been awarded the GaS prize for his Master's thesis on "Evaluation of Speech Quality Using Machine Learning".

In his work, he investigated possible side effects of magnetic resonance-guided focussed ultrasound treatment (MRgFUS) on speech quality in patients with neurological diseases such as Parkinson's disease and essential tremor. This innovative and non-invasive treatment method is used to reduce tremor, i.e. the shaking of limbs.

To evaluate the effects on speech, pre- and post-operative speech recordings of 56 patients were analysed: Speech quality was assessed in five categories (monotony, clarity, fluency, auditory effort and vocal tremor) through a survey with 21 participants and used to create a convolutional neural network (CNN). This generates an objective assessment of speech quality using mel frequency cepstral coefficients (MFCCs), fundamental frequency and loudness. A mean absolute error (MAE) of 0.81 on a scale of 0 to 10 was achieved, compared to a standard deviation of 0.67 for the survey participants compared to a reference assessment. The evaluation of the survey revealed minor positive and negative changes in speech quality, which were balanced overall and tended to indicate natural speech variations in connection with the patients' underlying illnesses.

Congratulations on this well-deserved honour!

M. Sc. Marco Driesen

Research: Magnetic-acoustic Real-time MIMO SONAR Systems based on Thin-film Sensor Technology

Further interests:

Short CV

Publications

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