Thomas Ahlefeldt
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A review of acoustic imaging methods using phased microphone arrays
R Merino-Martínez, P Sijtsma, M Snellen, T Ahlefeldt, J Antoni, CJ Bahr, ...
CEAS Aeronautical Journal 10 (1), 197-230, 2019
A comparison of microphone phased array methods applied to the study of airframe noise in wind tunnel testing
CJ Bahr, WM Humphreys, D Ernst, T Ahlefeldt, C Spehr, A Pereira, ...
23rd AIAA/CEAS Aeroacoustics Conference, 3718, 2017
Microphone-array measurements in a cryogenic wind tunnel
T Ahlefeldt, L Koop
AIAA journal 48 (7), 1470-1479, 2010
Aeroacoustic measurements of a scaled half-model at high Reynolds numbers
T Ahlefeldt
AIAA journal 51 (12), 2783-2791, 2013
Advanced measurement techniques for high Reynolds number testing in cryogenic wind tunnels
U Fey, Y Egami, R Konrath, T Kirmse, T Ahlefeldt, J Kompenhans
48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and …, 2010
Microphone array measurements on high-speed trains in wind tunnels
A Lauterbach, K Ehrenfried, S Kröber, T Ahlefeldt, S Loose
Berlin Beamforming Conference, 2010
High-Reynolds number aeroacoustic testing under pressurised cryogenic conditions in PETW
T Ahlefeldt, J Quest
50th AIAA Aerospace Sciences Meeting including the New Horizons Forum and …, 2012
Microphone-array Measurements in wind tunnels: Challenges and Limitations
L Koop, S Kröber, T Ahlefeldt, K Ehrenfried, C Spehr
Berlin Beamforming Conference, 22-23, 2012
Aeroacoustic measurements of a scaled half model at high reynolds numbers
T Ahlefeldt, A Lauterbach, L Koop
16th AIAA/CEAS Aeroacoustics Conference, 3748, 2010
Airframe noise measurements in a large hard-walled closed-section wind tunnel
A Di Marco, L Burghignoli, F Centracchio, R Camussi, T Ahlefeldt, ...
Applied Acoustics 146, 96-107, 2019
Microphone array measurement in european transonic wind tunnel at flight Reynolds numbers
T Ahlefeldt
AIAA Journal 55 (1), 36-48, 2017
3D Lagrangian particle tracking using 4-pulse Shake-The-Box synchronised with microphone measurements on a subsonic jet at Mach 0.9
P Manovski, NKD Mohan, R Geisler, M Novara, D Schanz, J Agocs, ...
Real-Flight Reynolds Number Microphone-Array Measurements on a Scaled Model in ETW
T Ahlefeldt, J Quest
52nd Aerospace Sciences Meeting, 1483, 2014
Advances in Microphone array measurements in a cryogenic wind tunnel
T Ahlefeldt, L Koop, A Lauterbach, C Spehr
Institute of Aerodynamics and Flow Technology, German Aerospace Center DLR …, 2010
Comparison of microphone array measurements in the closed test section of LSWT and ETW
C Spehr, T Ahlefeldt
CEAS Aeronautical Journal 10 (1), 267-285, 2019
Microphone localization with self calibrating acoustic GPS
D Ernst, T Ahlefeldt, S Haxter, C Spehr
23rd AIAA/CEAS Aeroacoustics Conference, 3842, 2017
Phased Array Aeroacoustic Measurements of an Unmanned Aerial Vehicle
A Di Marco, F Centracchio, R Camussi, T Ahlefeldt, A Henning, J Müller
INTER-NOISE and NOISE-CON Congress and Conference Proceedings 253 (6), 1901-1912, 2016
Experimental validation of unsteady pressure-sensitive paint for acoustic applications
J Gößling, T Ahlefeldt, M Hilfer
Experimental Thermal and Fluid Science 112, 109915, 2020
A Tomographic Directivity Approach to Frequency Domain Beamforming
T Ahlefeldt, C Spehr, T Berkefeld, A Di Marco, L Burghignoli
2018 AIAA/CEAS Aeroacoustics Conference, 2808, 2018
Aeroacoustic Analysis of a Mach 0.9 Round Jet using Synchronized Microphone Array and Shake-The-Box 3D Lagrangian Particle Tracking Measurements
NK Depuru Mohan, P Manovski, R Geisler, J Agocs, T Ahlefeldt, M Novara, ...
23rd AIAA/CEAS Aeroacoustics Conference, 3862, 2017
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