Limits for generalized sidelobe cancellers with embedded acoustic echo cancellation
Herbordt W, Kellermann W (2001)
Publication Status: Published
Publication Type: Conference contribution, Conference Contribution
Publication year: 2001
Book Volume: 5
Pages Range: 3241-3244
Event location: Salt Lake, UT
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0034848516&origin=inward
Abstract
This paper analyzes positive synergies and theoretical limits of the combination of acoustic echo cancellation (AEC) and Generalized Sidelobe Cancellers (GSC) for the removal of echoes of loudspeaker signals and local interferers. While the proposed system only requires one AEC for an arbitrary number of microphones, the array gain is limited by the number of sensor channels when all interferers arrive from different directions-of-arrival (DOAs). The paper also shows that the degrees of freedom of the adaptive sidelobe cancelling path are not sufficient when local interferers and acoustic echoes have common DOAs.
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APA:
Herbordt, W., & Kellermann, W. (2001). Limits for generalized sidelobe cancellers with embedded acoustic echo cancellation. In Proceedings of the 2001 IEEE Interntional Conference on Acoustics, Speech, and Signal Processing (pp. 3241-3244). Salt Lake, UT, US.
MLA:
Herbordt, Wolfgang, and Walter Kellermann. "Limits for generalized sidelobe cancellers with embedded acoustic echo cancellation." Proceedings of the 2001 IEEE Interntional Conference on Acoustics, Speech, and Signal Processing, Salt Lake, UT 2001. 3241-3244.
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