Robust Relative Transfer Function Estimation for Dual Microphone-Based Generalized Sidelobe Canceller
- Authors
- Kim, Kihyeon; Ko, Hanseok
- Issue Date
- Sep-2009
- Publisher
- IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG
- Keywords
- dual microphone arrays; generalized sidelobe canceller; relative transfer function estimation; spectral classification; W-disjoint orthogonality
- Citation
- IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS, v.E92D, no.9, pp.1794 - 1797
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS
- Volume
- E92D
- Number
- 9
- Start Page
- 1794
- End Page
- 1797
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/119459
- DOI
- 10.1587/transinf.E92.D.1794
- ISSN
- 1745-1361
- Abstract
- In this Letter, a robust system identification method is proposed for the generalized sidelobe canceller using dual microphones. The conventional transfer-function generalized sidelobe canceller employs the non-stationarity characteristics of the speech signal to estimate the relative transfer function and thus is difficult to apply when the noise is also non-stationary. Under the assumption of W-disjoint orthogonality between the speech and the non-stationary noise, the proposed algorithm finds the speech-dominant time-frequency bins of the input signal by inspecting the system output and the inter-microphone time delay. Only these bins are used to estimate the relative transfer function, so reliable estimates can be obtained under non-stationary noise conditions. The experimental results show that the proposed algorithm significantly improves the performance of the transfer-function generalized sidelobe canceller, while only sustaining a modest estimation error in adverse non-stationary noise environments.
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