Comparing efficient broadband beamforming architectures and their performance trade-offs
Weiss, Stephan and Proudler, Ian K.; Skodras, A.N and Constantinides, A.G., eds. (2002) Comparing efficient broadband beamforming architectures and their performance trade-offs. In: DSP 2002. IEEE, GRC, pp. 417-424. ISBN 0780375033 (https://doi.org/10.1109/ICDSP.2002.1027910)
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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.
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Item type: Book Section ID code: 40611 Dates: DateEvent3 July 2002PublishedSubjects: Technology > Electrical engineering. Electronics Nuclear engineering Department: Faculty of Engineering > Electronic and Electrical Engineering Depositing user: Pure Administrator Date deposited: 31 Jul 2012 13:18 Last modified: 06 Jul 2024 07:08 URI: https://strathprints.strath.ac.uk/id/eprint/40611