Adaptive signal blocking for generalized sidelobe canceller using matched filter array

Jwu-Sheng Hu*, Chia Hsing Yang

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

This work proposes an adaptive beamformer based on generalized sidelobe canceller (GSC) structure with novel blocking matrix design. The classical GSC presented by Griffiths and Jim suffers from desired signal cancellation problems due to the complicated acoustic environment. This work utilizes the pseudo-inverse property of matched filters and subarray structure to design a new blocking matrix of the GSC. For practical implementation, matched filter ratios between microphone pairs are estimated, instead of estimating matched filters from the sound source to each microphone. Simulation results are presented to show the effectiveness of the proposed method.

Original languageEnglish
Title of host publication2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP
Pages2597-2600
Number of pages4
DOIs
StatePublished - 16 Sep 2008
Event2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP - Las Vegas, NV, United States
Duration: 31 Mar 20084 Apr 2008

Publication series

NameICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
ISSN (Print)1520-6149

Conference

Conference2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP
CountryUnited States
CityLas Vegas, NV
Period31/03/084/04/08

Keywords

  • GSC
  • Matched filters
  • Subarray

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    Hu, J-S., & Yang, C. H. (2008). Adaptive signal blocking for generalized sidelobe canceller using matched filter array. In 2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP (pp. 2597-2600). [4518180] (ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings). https://doi.org/10.1109/ICASSP.2008.4518180