SVA Based Beamforming
Erdal Ep\c{c}a\c{c}an, Tolga \c{C}ilo\u{g}lu
TL;DR
This paper introduces a frequency domain beamforming method using spatially variant apodization to reduce sidelobe levels in direction-of-arrival estimation for linear arrays.
Contribution
It adapts the nonlinear spatially variant apodization technique for beamforming, enhancing sidelobe suppression in array signal processing.
Findings
Significant sidelobe reduction demonstrated in simulations.
Improved direction-of-arrival estimation accuracy.
Method applicable to uniform linear arrays.
Abstract
A frequency domain method is proposed to reduce the sidelobe level of a uniformly weighted uniform linear array in direction-of-arrival estimation. The development is based on the nonlinear method of spatially variant apodization originally proposed for spectral analysis and synthetic aperture radar imagery.
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Taxonomy
TopicsAdvanced SAR Imaging Techniques · Direction-of-Arrival Estimation Techniques · Radar Systems and Signal Processing