Comparing efficient broadband beamforming architectures and their performance trade-offs

Stephan  Weiss; Ian K. Proudler

doi:10.1109/ICDSP.2002.1027910

Comparing efficient broadband beamforming architectures and their performance trade-offs

Stephan Weiss, Ian K. Proudler

Electronic And Electrical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book

30 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 language	English
Title of host publication	DSP 2002
Subtitle of host publication	14th International Conference on Digital Signal Processing Proceedings
Editors	A.N Skodras, A.G. Constantinides
Place of Publication	New York
Publisher	IEEE
Pages	417-424
Number of pages	7
ISBN (Print)	0780375033
DOIs	https://doi.org/10.1109/ICDSP.2002.1027910
Publication status	Published - 3 Jul 2002
Event	14th International Conference on Digital Signal Processing - Santorini, Greece Duration: 1 Jul 2002 → 3 Jul 2002 http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=7978

Conference

Conference	14th International Conference on Digital Signal Processing
Abbreviated title	DSP 2002
Country/Territory	Greece
City	Santorini
Period	1/07/02 → 3/07/02
Internet address	http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=7978

Keywords

oversampled filter banks
design
subband adaptive filters
efficient broadband
beamforming architectures
performance trade-offs
comparing
array signal processing
frequency domain analysis
discrete Fourier transforms

Access to Document

10.1109/ICDSP.2002.1027910

Cite this

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title = "Comparing efficient broadband beamforming architectures and their performance trade-offs",

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.",

keywords = "oversampled filter banks, design , subband adaptive filters , efficient broadband, beamforming architectures, performance trade-offs, comparing, array signal processing, frequency domain analysis, discrete Fourier transforms",

author = "Stephan Weiss and Proudler, {Ian K.}",

year = "2002",

month = jul,

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doi = "10.1109/ICDSP.2002.1027910",

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editor = "Skodras, {A.N } and Constantinides, {A.G. }",

booktitle = "DSP 2002",

publisher = "IEEE",

note = "14th International Conference on Digital Signal Processing, DSP 2002 ; Conference date: 01-07-2002 Through 03-07-2002",

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}

Weiss, S & Proudler, IK 2002, Comparing efficient broadband beamforming architectures and their performance trade-offs. in AN Skodras & AG Constantinides (eds), DSP 2002: 14th International Conference on Digital Signal Processing Proceedings. IEEE, New York, pp. 417-424, 14th International Conference on Digital Signal Processing, Santorini, Greece, 1/07/02. https://doi.org/10.1109/ICDSP.2002.1027910

Comparing efficient broadband beamforming architectures and their performance trade-offs. / Weiss, Stephan ; Proudler, Ian K.
DSP 2002: 14th International Conference on Digital Signal Processing Proceedings. ed. / A.N Skodras; A.G. Constantinides. New York: IEEE, 2002. p. 417-424.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book

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AU - Proudler, Ian K.

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N2 - 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.

AB - 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.

KW - oversampled filter banks

KW - design

KW - subband adaptive filters

KW - efficient broadband

KW - beamforming architectures

KW - performance trade-offs

KW - comparing

KW - array signal processing

KW - frequency domain analysis

KW - discrete Fourier transforms

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CY - New York

T2 - 14th International Conference on Digital Signal Processing

Y2 - 1 July 2002 through 3 July 2002

ER -

Comparing efficient broadband beamforming architectures and their performance trade-offs

Abstract

Conference

Keywords

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Cite this