| Paper: | SAM-L2.3 | ||
| Session: | Microphone Array Processing | ||
| Time: | Wednesday, May 17, 17:10 - 17:30 | ||
| Presentation: | Lecture | ||
| Topic: | Sensor Array and Multichannel Signal Processing: Source localization, separation, classification, and tracking | ||
| Title: | Disambiguation of TDOA Estimates in Multi-Path Multi-Source Environments (DATEMM) | ||
| Authors: | Jan Scheuing, Bin Yang, University of Stuttgart, Germany | ||
| Abstract: | One major problem of time delay estimation for acoustic localization in multi-source reverberant environments is the ambiguity in identifying out of many peaks of generalized crosscorrelation the desired time differences of arrival (TDOAs) caused by direct paths and in assigning them correctly to individual sources. In this paper, we propose a novel geometrically motivated approach "Disambiguation of TDOA estimates in multi-path multi-source environments" (DATEMM). It utilizes additional information from the auto-correlation of sensor signals and a zero TDOA sum condition to suppress spurious TDOA estimates. Furthermore, this method can be used as an add-on module to improve the robustness of any existing TDOA estimation method. | ||
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