TY - GEN A1 - Will, Christoph A1 - Shi, Kilin A1 - Schellenberger, Sven A1 - Steigleder, Tobias A1 - Michler, Fabian A1 - Weigel, Robert A1 - Ostgathe, Christoph A1 - Kölpin, Alexander T1 - Local Pulse Wave Detection using Continuous Wave Radar Systems T2 - IEEE Journal of Electromagnetics, RF and Microwaves in Medicine and Biology Y1 - 2017 U6 - https://doi.org/10.1109/JERM.2017.2766567 SN - 2469-7249 VL - 1 IS - 2 SP - 81 EP - 89 ER - TY - GEN A1 - Will, Christoph A1 - Shi, Kilin A1 - Schellenberger, Sven A1 - Steigleder, Tobias A1 - Michler, Fabian A1 - Fuchs, Jonas A1 - Weigel, Robert A1 - Ostgathe, Christoph A1 - Kölpin, Alexander T1 - Radar-Based Heart Sound Detection T2 - Scientific Reports Y1 - 2018 U6 - https://doi.org/10.1038/s41598-018-29984-5 SN - 2045-2322 VL - 8 ER - TY - CHAP A1 - Shi, Kilin A1 - Will, Christoph A1 - Steigleder, Tobias A1 - Michler, Fabian A1 - Weigel, Robert A1 - Ostgathe, Christoph A1 - Kölpin, Alexander T1 - A contactless system for continuous vital sign monitoring in palliative and intensive care T2 - The 12th Annual IEEE International Systems Conference : SysCon 2018, Vancouver, Canada : JW Marriott Parq Vancouver, April 24-26 : 2018 conference proceedings Y1 - 2018 SN - 978-1-5386-3664-0 U6 - https://doi.org/10.1109/SYSCON.2018.8369507 PB - IEEE CY - Piscataway, NJ, USA ER - TY - GEN A1 - Shi, Kilin A1 - Schellenberger, Sven A1 - Will, Christoph A1 - Steigleder, Tobias A1 - Michler, Fabian A1 - Fuchs, Jonas A1 - Weigel, Robert A1 - Ostgathe, Christoph A1 - Kölpin, Alexander T1 - A dataset of radar-recorded heart sounds and vital signs including synchronised reference sensor signals T2 - Scientific Data Y1 - 2020 U6 - https://doi.org/10.15480/882.2830 SN - 2052-4463 VL - 7 IS - 1 SP - 1 EP - 12 ER - TY - CHAP A1 - Seelig, Torsten A1 - Harlander, Uwe A1 - Borcia, Ion-Dan A1 - Scurtu, Nicoleta A1 - Egbers, Christoph A1 - Klein, Marten A1 - Ghasemi, Abouzar A1 - Will, Andreas A1 - Schaller, Eberhard T1 - Inertial waves in rotating cylindrical annulus: theory, experiment and simulations T2 - Book of abstracts, 9th European Fluid Mechanics Conference (EFMC), 9-13 September, Rome, Italy Y1 - 2012 UR - http://www.efmc9.eu/absbook/index.html ER - TY - CHAP A1 - Will, Christoph A1 - Mann, Sebastian A1 - Michler, Fabian A1 - Reißland, Torsten A1 - Lurz, Fabian A1 - Weigel, Robert A1 - Kölpin, Alexander T1 - Error Compensation of the Temperature Influence on Radar based Displacement Measurements T2 - IEEE Asia Pacific Microwave Conference, 13-16 Nov. 2017, Kuala Lumpur, Malaysia Y1 - 2017 SN - 978-1-5386-0640-7 U6 - https://doi.org/10.1109/APMC.2017.8251384 SP - 89 EP - 92 PB - IEEE CY - Piscataway, NJ ER - TY - GEN A1 - Mann, Sebastian A1 - Will, Christoph A1 - Reißland, Torsten A1 - Lurz, Fabian A1 - Lindner, Stefan A1 - Linz, Sarah A1 - Weigel, Robert A1 - Kölpin, Alexander T1 - High Precision Interferometric Radar for Sheet Thickness Monitoring T2 - IEEE Transactions on Microwave Theory and Techniques Y1 - 2018 U6 - https://doi.org/10.1109/TMTT.2018.2825328 SN - 0018-9480 SN - 1557-9670 VL - 66 IS - 6 SP - 3153 EP - 3166 ER - TY - CHAP A1 - Shi, Kilin A1 - Will, Christoph A1 - Weigel, Robert A1 - Kölpin, Alexander T1 - Contactless person identification using cardiac radar signals T2 - Discovering new horizons in instrumentation and measurement : I2MTC : 2018 IEEE International Instrumentation & Measurement Technology Conference : May 14-17, 2018, Royal Sonesta Hotel, Houston, Texas, USA : 2018 conference proceedings Y1 - 2018 SN - 978-1-5386-2222-3 U6 - https://doi.org/10.1109/I2MTC.2018.8409645 PB - IEEE CY - Piscataway, NJ, USA ER - TY - CHAP A1 - Will, Christoph A1 - Shi, Kilin A1 - Weigel, Robert A1 - Kölpin, Alexander T1 - Advanced Template Matching Algorithm for Instantaneous Heartbeat Detection using Continuous Wave Radar Systems T2 - First IEEE MTT-S International Microwave Bio Conference (IMBIOC), Göteborg (Sweden), 2017 Y1 - 2017 SN - 978-1-5386-1713-7 U6 - https://doi.org/10.1109/IMBIOC.2017.7965797 PB - IEEE CY - Piscataway, NJ ER - TY - GEN A1 - Will, Christoph A1 - Linz, Sarah A1 - Mann, Sebastian A1 - Lurz, Fabian A1 - Lindner, Stefan A1 - Weigel, Robert A1 - Kölpin, Alexander T1 - A 24 GHz Waveguide based Radar System using an Advanced Algorithm for I/Q Offset Cancelation T2 - Advances in Radio Science Y1 - 2017 U6 - https://doi.org/10.5194/ars-15-249-2017 SN - 1684-9973 VL - 15 SP - 249 EP - 258 ER - TY - GEN A1 - Kölpin, Alexander A1 - Lurz, Fabian A1 - Linz, Sarah A1 - Mann, Sebastian A1 - Will, Christoph A1 - Lindner, Stefan T1 - Six-Port Based Interferometry for Precise Radar and Sensing Application T2 - Sensors Y1 - 2016 U6 - https://doi.org/10.3390/s16101556 SN - 1424-8220 VL - 16 IS - 10 SP - 1556 ER - TY - CHAP A1 - Klein, Marten A1 - Borcia, Ion-Dan A1 - Egbers, Christoph A1 - Ghasemi, Abouzar A1 - Harlander, Uwe A1 - Kurgansky, Michael V. A1 - Schaller, Eberhard A1 - Seelig, Torsten A1 - Will, Andreas T1 - Inertial Waves and Wave Excitation Mechanisms in Annular Cavities: Simulations, Experiments and Theory T2 - European Turbulence Conference ETC14, Lyon, 2013 KW - boundary-layer structure KW - geophysical and geological flows KW - waves in rotating fluids Y1 - 2013 UR - http://etc14.ens-lyon.fr/etc-14-proceedings/accepted-talks ER - TY - CHAP A1 - Seelig, Torsten A1 - Borcia, Ion-Dan A1 - Klein, Marten A1 - Ghasemi, Abouzar A1 - Will, Andreas A1 - Egbers, Christoph A1 - Schaller, Eberhard A1 - Harlander, Uwe T1 - Inertial waves and wave attractors in a rotating annulus with inner or outer cylinder libration T2 - European Geosciences Union (EGU), 10th General Assembly, Vienna, Austria, 07 – 12 April 2013 Y1 - 2013 UR - http://meetingorganizer.copernicus.org/EGU2013/EGU2013-7602.pdf N1 - EGU2013-7602 ER - TY - GEN A1 - Klein, Marten A1 - Seelig, Torsten A1 - Kurgansky, Michael V. A1 - Ghasemi, Abouzar A1 - Borcia, Ion-Dan A1 - Will, Andreas A1 - Schaller, Eberhard A1 - Egbers, Christoph A1 - Harlander, Uwe T1 - Inertial wave excitation and focusing in a liquid bounded by a frustum and a cylinder T2 - Journal of Fluid Mechanics N2 - The mechanism of localized inertial wave excitation and its efficiency is investigated for an annular cavity rotating with Ω0 . Meridional symmetry is broken by replacing the inner cylinder with a truncated cone (frustum). Waves are excited by individual longitudinal libration of the walls. The geometry is non-separable and exhibits wave focusing and wave attractors. We investigated laboratory and numerical results for the Ekman number E ≈ 10−6. inclination α = 5.71◦ and libration amplitudes ε 0.2 within the inertial wave band 0 < ω < 2Ω0 . Under the assumption that the inertial waves do not essentially affect the boundary-layer structure, we use classical boundary-layer analysis to study oscillating Ekman layers over a librating wall that is at an angle α = 0 to the axis of rotation. The Ekman layer erupts at frequency ω = f∗, where f∗ ≡ 2Ω0 sin α is the effective Coriolis parameter in a plane tangential to the wall. For the selected inclination this eruption occurs for the forcing frequency ω/Ω0 = 0.2. For the librating lids eruption occurs at ω/Ω0 = 2. The study reveals that the frequency dependence of the total kinetic energy Kω of the excited wave field is strongly connected to the square of the Ekman pumping velocity wE (ω) that, in the linear limit, becomes singular when the boundary layer erupts. This explains the frequency dependence of non-resonantly excited waves. By the localization of the forcing, the two configurations investigated, (i) frustum libration and (ii) lids together with outer cylinder in libration, can be clearly distinguished by their response spectra. Good agreement was found for the spatial structure of low-order wave attractors and periodic orbits (both characterized by a small number of reflections) in the frequency windows predicted by geometric ray tracing. For ‘resonant’ frequencies a significantly increased total bulk energy was found, while the energy in the boundary layer remained nearly constant. Inertial wave energy enters the bulk flow via corner beams, which are parallel to the characteristics of the underlying Poincaré problem. Numerical simulations revealed a mismatch between the wall-parallel mass fluxes near the corners. This leads to boundary-layer eruption and the generation of inertial waves in the corners. KW - boundary-layer structure KW - geophysical and geological flows KW - waves in rotating fluids Y1 - 2014 U6 - https://doi.org/10.1017/jfm.2014.304 SN - 1750-6859 IS - vol. 751 SP - 255 EP - 297 ER -