@inproceedings{HeroldSarradj, author = {Herold, Gert and Sarradj, Ennes}, title = {Preliminary Benchmarking of Microphone Array Methods}, series = {Proceedings, Berlin Beamforming Conference, 2014}, booktitle = {Proceedings, Berlin Beamforming Conference, 2014}, publisher = {Gesellschaft zur F{\"o}rderung angewandter Informatik}, isbn = {978-3-942709-12-5}, language = {en} } @inproceedings{HeroldSarradj, author = {Herold, Gert and Sarradj, Ennes}, title = {Vergleich von Mikrofonarrayverfahren zur Schallquellencharakterisierung}, series = {DAGA 2014, 40. Jahrestagung f{\"u}r Akustik, "Fortschritte der Akustik" 10. - 13. M{\"a}rz 2014 Oldenburg}, booktitle = {DAGA 2014, 40. Jahrestagung f{\"u}r Akustik, "Fortschritte der Akustik" 10. - 13. M{\"a}rz 2014 Oldenburg}, publisher = {Deutsche Gesellschaft f{\"u}r Akustik}, address = {Berlin}, isbn = {978-3-939296-06-5}, pages = {624 -- 625}, language = {de} } @inproceedings{SarradjGeyerHerold, author = {Sarradj, Ennes and Geyer, Thomas and Herold, Gert}, title = {Dreidimensionale Quellcharakterisierung mit fortschrittlichen Mikrofonarrayverfahren f{\"u}r die Anwendung in der Maschinenakustik}, series = {Maschinenakustik 2014, Wettbewerbsvorteil durch ger{\"a}uscharme Produkte sichern, Karlsruhe, 12.-13.11.2014}, booktitle = {Maschinenakustik 2014, Wettbewerbsvorteil durch ger{\"a}uscharme Produkte sichern, Karlsruhe, 12.-13.11.2014}, publisher = {VDI-Verlag}, address = {D{\"u}sseldorf}, isbn = {978-3-18-092229-4}, pages = {171 -- 184}, language = {de} } @inproceedings{HeroldSarradjGeyer, author = {Herold, Gert and Sarradj, Ennes and Geyer, Thomas}, title = {Covariance Matrix Fitting for Aeroacoustic Application}, series = {Fortschritte der Akustik - AIA-DAGA 2013}, booktitle = {Fortschritte der Akustik - AIA-DAGA 2013}, publisher = {Deutsche Gesellschaft f{\"u}r Akustik}, pages = {1926 -- 1928}, language = {en} } @misc{GeyerSarradjHerold, author = {Geyer, Thomas and Sarradj, Ennes and Herold, Gert}, title = {Flow Noise Generation of Cylinders with Soft Porous Cover}, series = {21st AIAA/CEAS Aeroacoustics Conference 2015, Dallas, Texas, USA, 22 - 26 June 2015, held at the AIAA Aviation Forum 2015, vol. 5, (AIAA 2015-3147)}, journal = {21st AIAA/CEAS Aeroacoustics Conference 2015, Dallas, Texas, USA, 22 - 26 June 2015, held at the AIAA Aviation Forum 2015, vol. 5, (AIAA 2015-3147)}, publisher = {Curran}, address = {Red Hook, NY}, isbn = {978-1-5108-0820-1}, pages = {3695 -- 3711}, language = {en} } @inproceedings{HeroldSarradj, author = {Herold, Gert and Sarradj, Ennes}, title = {Microphone Array Method for the Characterization of Rotating Sound Sources in Axial Fans}, series = {Fan 2015, International Conference on Fan Noise, Technology and Numerical Methods, Lyon 2015}, booktitle = {Fan 2015, International Conference on Fan Noise, Technology and Numerical Methods, Lyon 2015}, publisher = {Institution of Mechanical Engineers}, address = {London}, isbn = {978-0-9572374-3-8}, language = {en} } @misc{HeroldSarradj, author = {Herold, Gert and Sarradj, Ennes}, title = {An Approach to Estimate the Reliability of Microphone Array Methods}, series = {21st AIAA/CEAS Aeroacoustics Conference 2015, Dallas, Texas, USA, 22 - 26 June 2015, held at the AIAA Aviation Forum 2015, vol. 4, (AIAA 2015-2977)}, journal = {21st AIAA/CEAS Aeroacoustics Conference 2015, Dallas, Texas, USA, 22 - 26 June 2015, held at the AIAA Aviation Forum 2015, vol. 4, (AIAA 2015-2977)}, publisher = {Curran}, address = {Red Hook, NY}, isbn = {978-1-5108-0820-1}, pages = {2688 -- 2697}, language = {en} } @inproceedings{HeroldSarradj, author = {Herold, Gert and Sarradj, Ennes}, title = {Mikrofonarrayverfahren zur Messung der abgestrahlten Schallleistung von Motorkomponenten}, series = {Fortschritte der Akustik, DAGA 2015, N{\"u}rnberg, 41. Jahrestagung f{\"u}r Akustik, 16. - 19. M{\"a}rz 2015}, booktitle = {Fortschritte der Akustik, DAGA 2015, N{\"u}rnberg, 41. Jahrestagung f{\"u}r Akustik, 16. - 19. M{\"a}rz 2015}, publisher = {Deutsche Gesellschaft f{\"u}r Akustik e.V.}, address = {Berlin}, isbn = {978-3-939296-08-9}, language = {de} } @misc{HeroldZengerSarradj, author = {Herold, Gert and Zenger, Florian and Sarradj, Ennes}, title = {Analyzing Noise Components on Skewed Fans with a Virtual Rotating Microphone Array : AIAA paper 2016-2761}, series = {22nd AIAA/CEAS Aeroacoustics Conference 2016, Lyon, France, 30 May-1 June 2016}, journal = {22nd AIAA/CEAS Aeroacoustics Conference 2016, Lyon, France, 30 May-1 June 2016}, publisher = {Curran Associates}, address = {Red Hook, NY}, isbn = {978-1-5108-2672-4}, language = {en} } @inproceedings{HeroldSarradj, author = {Herold, Gert and Sarradj, Ennes}, title = {Frequency Domain Deconvolution for Rotating Sources on an Axial Fan}, series = {BeBeC, 6th Berlin Beamforming Conference, February 29 - March 1, 2016, proceedings}, booktitle = {BeBeC, 6th Berlin Beamforming Conference, February 29 - March 1, 2016, proceedings}, publisher = {Berlin}, address = {Gesellschaft zur F{\"o}rderung angewandter Informatik}, pages = {8}, language = {en} } @misc{CaldasGrecoHeroldetal., author = {Caldas, Luciano and Greco, Paolo and Herold, Gert and Baccal{\´a}, Luiz}, title = {In-Duct Rotating Beamforming and Mode Detection of Fan Noise Sources : AIAA paper 2016-3034}, series = {22nd AIAA/CEAS Aeroacoustics Conference 2016, Lyon, France, 30 May-1 June 2016, vol. 7}, journal = {22nd AIAA/CEAS Aeroacoustics Conference 2016, Lyon, France, 30 May-1 June 2016, vol. 7}, publisher = {Curran Associates}, address = {Red Hook, NY}, isbn = {978-1-5108-2672-4}, pages = {5140 -- 5155}, language = {en} } @misc{ZengerHeroldBeckeretal., author = {Zenger, Florian and Herold, Gert and Becker, Stefan and Sarradj, Ennes}, title = {Sound source localization on an axial fan at different operating points}, series = {Experiments in Fluids}, volume = {57}, journal = {Experiments in Fluids}, issn = {0723-4864}, doi = {10.1007/s00348-016-2223-8}, pages = {136}, language = {en} } @misc{ZengerHeroldBecker, author = {Zenger, Florian and Herold, Gert and Becker, Stefan}, title = {Acoustic Characterization of Forward- and Backward-Skewed Axial Fans under Increased Inflow Turbulence : AIAA paper 2016-2943}, series = {22nd AIAA/CEAS Aeroacoustics Conference 2016, Lyon, France, 30 May-1 June 2016, vol. 4}, journal = {22nd AIAA/CEAS Aeroacoustics Conference 2016, Lyon, France, 30 May-1 June 2016, vol. 4}, publisher = {Curran Associates}, address = {Red Hook, NY}, isbn = {978-1-5108-2672-4}, pages = {3682 -- 3694}, language = {en} } @inproceedings{HeroldSarradj, author = {Herold, Gert and Sarradj, Ennes}, title = {Acoular - Open-Source-Software zur Anwendung von Mikrofonarrayverfahren}, series = {Fortschritte der Akustik, DAGA 2016, Aachen, 14.-17. M{\"a}rz 2016, 42. Jahrestagung f{\"u}r Akustik}, booktitle = {Fortschritte der Akustik, DAGA 2016, Aachen, 14.-17. M{\"a}rz 2016, 42. Jahrestagung f{\"u}r Akustik}, publisher = {DAGA}, address = {Berlin}, isbn = {978-3-939296-10-2}, language = {de} } @misc{SarradjHerold, author = {Sarradj, Ennes and Herold, Gert}, title = {A Python framework for microphone array data processing}, series = {Applied Acoustics}, volume = {116}, journal = {Applied Acoustics}, issn = {0003-682X}, doi = {10.1016/j.apacoust.2016.09.015}, pages = {50 -- 58}, language = {en} } @misc{HeroldGeyerMarkusetal., author = {Herold, Gert and Geyer, Thomas and Markus, Philipp and Sarradj, Ennes}, title = {Simultaneous Sound Power Measurement of Engine Components}, series = {SAE International Journal of Passenger Cars - Mechanical Systems}, volume = {9}, journal = {SAE International Journal of Passenger Cars - Mechanical Systems}, number = {3}, issn = {1946-3995}, doi = {10.4271/2016-01-1774}, pages = {974 -- 979}, language = {en} } @inproceedings{HallHeroldGeyeretal., author = {Hall, Philipp and Herold, Gert and Geyer, Thomas and Sarradj, Ennes}, title = {Vergleich verschiedener Methoden zur Schallleistungsbestimmung von Maschinenkomponenten}, series = {Fortschritte der Akustik, 43. Deutsche Jahrestagung f{\"u}r Akus tik, 6.-9. M{\"a}rz 2017 in Kiel}, booktitle = {Fortschritte der Akustik, 43. Deutsche Jahrestagung f{\"u}r Akus tik, 6.-9. M{\"a}rz 2017 in Kiel}, publisher = {Deutsche Gesellschaft f{\"u}r Akustik e.V. (DEGA)}, address = {Berlin}, isbn = {978-3-939296-12-6}, pages = {564 -- 567}, language = {de} } @misc{SarradjHeroldSijtsmaetal., author = {Sarradj, Ennes and Herold, Gert and Sijtsma, Pieter and Merino-Martinez, Roberto and Geyer, Thomas and Bahr, Christopher and Porteous, Ric and Moreau, Danielle J. and Doolan, Con}, title = {A Microphone Array Method Benchmarking Exercise using Synthesized Input Data}, series = {23rd AIAA/CEAS Aeroacoustics Conference 2017, Denver, USA, 5 June - 9 June 2017, (AIAA 2017-3719)}, journal = {23rd AIAA/CEAS Aeroacoustics Conference 2017, Denver, USA, 5 June - 9 June 2017, (AIAA 2017-3719)}, publisher = {AIAA}, address = {Reston, Va}, isbn = {978-1-62410-504-3}, language = {en} } @misc{HeroldGeyerSarradj, author = {Herold, Gert and Geyer, Thomas and Sarradj, Ennes}, title = {Comparison of Inverse Deconvolution Algorithms for High-resolution Aeroacoustic Source Characterization}, series = {23rd AIAA/CEAS Aeroacoustics Conference 2017, Denver, USA, 5 June - 9 June 2017, (AIAA 2017-4177)}, journal = {23rd AIAA/CEAS Aeroacoustics Conference 2017, Denver, USA, 5 June - 9 June 2017, (AIAA 2017-4177)}, publisher = {AIAA}, address = {Reston, Va}, isbn = {978-1-62410-504-3}, language = {en} } @misc{HoeltgenBreussHeroldetal., author = {Hoeltgen, Laurent and Breuß, Michael and Herold, Gert and Sarradj, Ennes}, title = {Sparse ℓ1 regularisation of matrix valued models for acoustic source characterisation}, series = {Optimization and Engineering}, volume = {19}, journal = {Optimization and Engineering}, number = {1}, issn = {1389-4420}, doi = {10.1007/s11081-017-9357-2}, pages = {39 -- 70}, abstract = {We present a strategy for the recovery of a sparse solution of a common problem in acoustic engineering, which is the reconstruction of sound source levels and locations applying microphone array measurements. The considered task bears similarities to the basis pursuit formalism but also relies on additional model assumptions that are challenging from a mathematical point of view. Our approach reformulates the original task as a convex optimisation model. The sought solution shall be a matrix with a certain desired structure. We enforce this structure through additional constraints. By combining popular splitting algorithms and matrix differential theory in a novel framework we obtain a numerically efficient strategy. Besides a thorough theoretical consideration we also provide an experimental setup that certifies the usability of our strategy. Finally, we also address practical issues, such as the handling of inaccuracies in the measurement and corruption of the given data. We provide a post processing step that is capable of yielding an almost perfect solution in such circumstances.}, language = {en} } @inproceedings{JekoschSarradjHeroldetal., author = {Jekosch, Simon and Sarradj, Ennes and Herold, Gert and Geyer, Thomas}, title = {Comparison of different solvers for general inverse beamforming algorithms for highresolution aeroacoustic source characterization}, series = {7th Berlin Beamforming Conference, BeBeC}, booktitle = {7th Berlin Beamforming Conference, BeBeC}, pages = {10}, language = {en} }