News from 2017
The DSS team looks back on a very interesting and also very successful year. We would like to thank all who have contributed to that: our students that did or do their Bachelor or Master theses with us, our Hiwis, all cooperation and project partners, all people who helped in educational or adminsitrative manner and of course all those that are not mentioned before. Last but not least: very special thanks to all the PhD students that "tranform" a group of very clever and nice people to a really great team ("vom Besten das Besondere").
We hope that all of you will have a nice Christmas celebration, that you will enjoy the few days that are usually free of work and that you have also a good start into the new year. Let's see what 2018 will bring to us.
On November 24th, one of our DSS team members, Owe Wisch, took part in the "Jugend forscht Perspektivforum" at the CAU. Thirty young students from the "Jugend forscht" project came to Kiel and participated in three different workshops focusing on career paths in maritime climate protection. Owe Wisch from our chair lead one of the workshops and presented his research topics, beamforming techniques and his career decisions so far to the students aged between 16 and 20 years.
We hope that we were able to show the students interesting career paths, share our knowledge about digital signal processing and its applications and hopefully some of them will consider studying electrical engineering, maybe even here in Kiel. We believe that exchange of ideas with the next generation of students, who are interested in science, is very important to the university and our chair and we would like to thank "Jugend forscht" for this opportunity.
Last Thuesday (21.11.2017) we put our first DSS boat for the first time into water. Even if it is not yet christened (to be done soon), we will call it "MISSy". This is an acronym standing for MIMO-SONAR System (thanks to Alexej for creating that name).
MISSy was able to carry three of us and until now we don't have an engine, meaning that we drive it as a bike with muscle force. However, everything was o.k. with MISSy. Now, we will extend it in several ways over the winter time. Our next steps will be an extension for our trailer, as well as artifical SONAR targets, communication and localisation possibilities.
We would like to thank our colleaques from the WTD 71 / FWG for finding an appropriate boat for our purposes and also for their "helping hands".
Recently, Owe Wisch finished his master thesis on speech recognition for swimming googles. The idea was to recognize commands such as "play", "stop", or "pause" while wearing an MP3 Player within the water.
In order to achieve that goal, Owe Wisch added several microphone within and on the outside of typical swimming googles. He used a GMM-based recognizer to map the "bubbling speech" onto several commands. The playback of was done via so-called bone conduction speakers that were also mounted on the side of the googles.
Special thanks to Jonas Wilinski who created the video that you can find below.
This fall Jens Reermann left the team after finishing his defense (see last news entry). At the same time - meaning in October/November - three new people entered our team.
Rasool Al-mafrachi was the first one. He came over from Bagdad / Irak with his family (his wife and his son) in October. Rasool will work on in-car communcation - supporting our speech and audio "division". Afterwards Christin Bald and Owe Wisch joined our team at the beginning of November. Christin will continue the work of Jens (medical signal processing with emphasis on magnetoelectric sensor systems). Owe is our third "underwater guy" - he will focus on communication aspects in SONAR systems.
We are very happy that these three clever, smart, intelligent, ... but also very kind - and that's the important thing - guys joined our group. Welcome to the DSS team.
On Friday, 21st of June, Jens Reermann defended his research on signals processing for magnetoelectric sensor systems very successfully. After 90 minutes of talk and question time he finished his PhD with distinction. Congratulations, Jens, from the entire DSS team.
Jens worked for about three and a half years - as part of the collaborative research center (SFB) 1261 - on all kinds of signal enhancement schemes for the new types of magnetoelectic sensors that are built by the material science researchers here in Kiel and used by our medical colleagues in the universtiy clinicum in Kiel. Jens implemented a real-time system for noise cancellation as well as a digitally contrlled analogue carrier suppression scheme (in cooperation with HF group) - to mention just a few a his contributions.
On June 30st, Chirstin Bald and Thorben Kaak were honored with prices form the Faculty of Engineering. Christin Bald finished as the best bachelor student this year in the study program "Electrical Engineering, Information Technology and Business Management" and Thorben Kaak did the same but in terms of his master studies in the study program "Electrical Engineering".
Of course, the DSS team congratulates both of them to the price and to their excellent performance during the study periods.
In June Alexej Namenas started in the DSS Team. He will work on real-time tracking algorithms for SONAR applications. Alexej has done both theses (Bachelor and Master) with us. The Bachelor thesis in audio processing (beamforming) and the Master thesis in the medical field (real-time electro- and magnetocardiography). In addition, he has intership erperience in SONAR processing.
We are pretty happy that Alexej has joined our team. Beside him also his twin brother (Anton) is in our team. Currently, we can easily differenciate both, since Alexej has done a lot of weight lifting recently. However, Anton joined the gym now as well ...
Recently the second part of the special issue on "Smart Vehicle Technologies" appeared in the IEEE Signal Processing Magazine. The issue was jointly edited by John H.L. Hansen, Kazuya Takeda, Sanjeev M. Naik, Mohan M. Trivedi, Gerhard Schmidt, Yingying (Jennifer) Chen, and Wade Trappe.
We were pretty happy to convince a large group of authors to write very interesting contributions. Since the contributions were too much for a single issue, the publishers agreed to do a double issue. Our introduction for the special issue can be found here.
As mentioned earlier, the month April was very "productive" in terms of PhD outcome for the DSS team. Tim Claussen defended his research on April, 28th successfully. Now we have five new doctors this month.
Tim Claussen has investigated and implemented SONAR systems with special focus on real-time MIMO approaches. Beside theoretical investigations he also implemented all approaches in our real-time system. Beamforming, adaptive Doppler analysis and cognitive approaches were among the various contributions that he worked on.
Tim, congratulation from the entire DSS team.
This April is very "productive" in terms of "PhD generation". On April 20th and 20st we had another two PhD defenses within the DSS team. First Vasudev Kandade Rajan defended successfully his research on (speech) signal processing for microphones that are integrated in seat belts. The very next day Jochen Withopf gave his "PhD talk" on in-car communication systems - also very successful.
Vasudev Kandade Rajan has investigated and implemented a multi-channel (for a multitude of loudspeakers, phone channels, and microphones) hands-free system. Special emphasis was put on the support of so-called belt microphones (sensors that are integrated in the security belts of cars). The project was done in close cooperation with the company "paragon". Vasu, congratulations from all of us!
Jochen Withopf has done research on so-called in-car communication systems, both in terms of theoretical analyses and practical implementations in our research cars. Jochen has worked in close cooperation with the Daimler. Also for you Jochen, congratulation from the entire DSS team.
Special thanks go to Prof. Dr. Tim Fingscheidt and Prof. Dr. Rainer Martin for being the second reviewers of the two PhD defenses.
Finally we should mention that April is not yet over. Let's see what the remaining week of April will bring.
This week - to be precise on Monday, 03.04.2017, and Thursday 06.04.2017 - we had two PhD defenses in our group.
Anne has done research in the last years on automatic evaluation systems for in-car communication systems. On Monday, she gave an excellent talk about her research and was able to answer all questions during her defense. Of course now: Gratulation to Dr.-Ing. Anne Theiß and thanks to the second reviewer, Prof. Möller from TU Berlin, as well as to the third questioner Prof. Klinkenbusch and to Prof. McCord for guiding the defense.
Kolja was investigating SONAR systems over the last years with special focus on tracking issues in cooperation with the FWG. On Thursday, he also gave an excellent talk about his research and defended his work successfully. Congratulations to Dr.-Ing. Kolja Pikora and thanks to PD Dr. Koch from Wachtberg for beeing the second reviewer as well as to Prof. Höft for being the third questioner and to Prof. Kienle for guiding the defense.
This year two new PhD students started their work in the DSS team: Anton Namenas and Tobias Hübschen.
Anton started on January, 1st after finishing his Master thesis on a real-time SONAR simulator (supervised by Thorben Kaak). Anton studied electrical engineering at Kiel university and had also been in the team as a student assistant. He will now focus on robust real-time simulation of acoustic environments and automatic evaluation of speech communicaiton systems in adverse environments (in-car communication and breathing protection masks). By the way, Anton is the first PhD student in the team who is married when starting over here ... sorry girls!
Tobias came over from RWTH Aachen University, where he studied electrical engineering. During his Master thesis he worked on Kalman filter based echo cancellation. In his PhD time he will focus on quality evaluation of modern speech communication systems. This will be done in cooperation with the TU Berlin, Telekom, and SwissQual as part of a DFG project. Tobias is a gifted cook and he is not married yet!
On January 20th, 2017 we had our yearly winter party. As usual we start in the Aquarium with our traditional three talks. First Christin Bald, Christin Willrodt, Morton Stabenau, and Tobias Klawonn had a look on the differences between female and male students in electrical engineering during the student talk. Afterwards Marco Gimm and Jens Reermann looked back via the "DSS science slam" on the last year via the "PhD glasses". Finally Gerhard Schmidt showed some ideas on the next research steps for the DSS team.
After this "hard work" we had a barbeque and something to drink in the audio lab. During this occasion our two new fridges were extensively tested. Hope you all had a nice evening with nice, interesting and funny conversations.
Thanks a lot to Eric Elzenheimer who had organized quite a big part of this event.
On January 13, 2017 the Petersen Prices for the best technical bachelor and master theses in Northern Germany were distributed. The Petersen prices are the most distinguieshed prices for bachelor and master theses in Germany. This year we are very proud that two of our students obtained first prices in both categories.
Christin Bald obtained the first price in the category "Bachelor". She worked on improving magnetoelectric sensor systems by means of adaptive noise canellation approaches. Jens Reermann supervised her work.
Thorben Kaak wins the first price in the category "Master". He implemented a realtime MIMO SONAR system with special features. In contrast to conventional approaches all the projectors (the sending hydrophones) emit orthogonal signals which allows to do the send beamforming after receiving the signals. Tim Claussen supervised the work of Thorben Kaak.