Dear subscribers of the colloquium newsletter,

we are happy to inform you about the next date of our Communication Technology Colloquium.

Friday, April 28, 2023
Speaker: Helena Janning
Time: 11:00 a.m.
Location: hybrid - Lecture room 4G and https://rwth.zoom.us/j/97904157921?pwd=SWpsbDl0MWhrWjY1ZkZaeFRoYmErZz09

Meeting-ID: 979 0415 7921
Passwort: 481650

Bachelor-Lecture:

Direction-of-Arrival Estimation in Headphones using Subspace Methods
Einfallsrichtungsschätzung bei Kopfhörern mittels Unterraummethoden

In order to estimate the direction of arrival of a sound source, different algorithms exist which vary in accuracy, robustness, computational complexity and memory requirements.

In the thesis, a modified Steered-Response Power (SRP) algorithm with a Minimum Variance Distortionless Response (MVDR) beamformer is presented, whose computational complexity and memory requirements are reduced compared to the original algorithm. For this purpose, the auto- and cross-energy spectral density of the device-related transfer functions are approximated using a principal component analysis.

It could be shown that the maximum complexity saving is 97,23% and the memory requirement can be reduced by 91,72%. Depending on the requirements for the estimation quality, further savings can be achieved.

All interested parties are cordially invited, registration is not required.

General information on the colloquium, as well as a current list of dates of the Communication Technology Colloquium can be found at:
https://www.iks.rwth-aachen.de/aktuelles/kolloquium

Simone Sedgwick
Secretariat
Institute of Communication Systems(IKS)
Prof. Dr.-Ing. Peter Jax
RWTH Aachen University
Muffeter Weg 3a, 52074 Aachen, Germany
+49 241 80 26956(phone)
+49 241 80 22254(fax) 
sedgwick@iks.rwth-aachen.de
https://www.iks.rwth-aachen.de/