Comparing efficient broadband beamforming architectures and their performance trade-offs

S. Weiss, I. Proudler

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

18 Citations (Scopus)

Abstract

In this paper, we evaluate efficient implementations of a broadband beamforming structure, that permits to project the data onto subspaces defined by the principle components of the array data. This optimum but computationally expensive approach is approximated in the frequency domain by processing in independent frequency bins. The latter is computationally optimal, but suffers from spectral leakage. We show that this problem persists even if the frequency resolution is increased, and that the worst case performance depends on the available degrees for freedoms only. Further, an oversampled subband scheme is proposed, which sacrifices some computational complexity but has a considerably improved and controllable worst case performance.
Original languageEnglish
Title of host publicationDSP 2002
Subtitle of host publication14th international conference on digital signal processing proceedings
EditorsA.N Skodras, A.G. Constantinides
Place of PublicationNew York
PublisherIEEE
Pages417-424
Number of pages7
ISBN (Print)0780375033
DOIs
Publication statusPublished - Jul 2002
Event14th International Conference on Digital Signal Processing - Santorini, Greece
Duration: 1 Jul 20023 Jul 2002
http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=7978

Conference

Conference14th International Conference on Digital Signal Processing
Abbreviated titleDSP 2002
CountryGreece
CitySantorini
Period1/07/023/07/02
Internet address

Keywords

  • oversampled filter banks
  • design
  • subband adaptive filters
  • efficient broadband
  • beamforming architectures
  • performance trade-offs
  • comparing

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  • Cite this

    Weiss, S., & Proudler, I. (2002). Comparing efficient broadband beamforming architectures and their performance trade-offs. In A. N. Skodras, & A. G. Constantinides (Eds.), DSP 2002: 14th international conference on digital signal processing proceedings (pp. 417-424). IEEE. https://doi.org/10.1109/ICDSP.2002.1027910