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A novel beamformer without tapped delay lines (TDLs) or sensor delay lines (SDLs) is proposed. It treats one wideband signal from a direction as multiple narrowband signals from an angular… Click to show full abstract
A novel beamformer without tapped delay lines (TDLs) or sensor delay lines (SDLs) is proposed. It treats one wideband signal from a direction as multiple narrowband signals from an angular sector. To preserve the signal of interest, it reconstructs the interference-plus-noise covariance matrix using narrowband Capon spectral estimator. Eliminating the TDLs and SDLs leads to a simpler system and lower computational complexity. Moreover, it outperforms traditional wideband beamforming methods in the case of limited snapshots or high signal-to-noise ratio.
Journal Title: Electronics Letters
Year Published: 2018
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