A novel method for partially adaptive broadband beamforming

Wei Liu, Stephan Weiss, Lajos Hanzo

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

5 Citations (Scopus)

Abstract

A novel subband-selective generalized sidelobe canceller (GSC) for partially adaptive broadband beamforming is proposed. The blocking matrix of the GSC is constructed such that its columns constitute a series of bandpass filters, which select signals with specific direction of arrival angles and frequencies. This results in bandlimited spectra of the blocking matrix outputs, which is further exploited by subband decomposition and discarding the low-pass subbands appropriately prior to running independent unconstrained adaptive filters in each non-redundant subband. We also discuss the design of both the blocking matrix and the filter banks for the subsequent subband decomposition. By these steps, the computational complexity of our subband-selective GSC is greatly reduced compared to other adaptive GSC schemes, while performance is comparable or even enhanced due to subband decorrelation, as simulations indicate.
Original languageEnglish
Title of host publication SIPS 2001
Subtitle of host publicationIEEE workshop on signal processing systems: design and implementation
EditorsF Catthoor, M Moonen
Place of PublicationNew York
PublisherIEEE
Pages361-372
Number of pages12
ISBN (Print)0780371453
DOIs
Publication statusPublished - 2001
EventIEEE Workshop on Signal Processing, Systems Design and Implementation (SiPS 01) - Antwerp, Belgium
Duration: 26 Sep 200128 Sep 2001

Conference

ConferenceIEEE Workshop on Signal Processing, Systems Design and Implementation (SiPS 01)
CountryBelgium
CityAntwerp
Period26/09/0128/09/01

Keywords

  • generalized sidelobe canceller
  • array
  • design
  • filter banks

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  • Cite this

    Liu, W., Weiss, S., & Hanzo, L. (2001). A novel method for partially adaptive broadband beamforming. In F. Catthoor, & M. Moonen (Eds.), SIPS 2001 : IEEE workshop on signal processing systems: design and implementation (pp. 361-372). IEEE. https://doi.org/10.1109/SIPS.2001.957364