Receiving Linear Array Beamforming Using Spatially Variant Apodization

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Authors: Novikov A. V., Hlusov V. A.

Annotation: The authors present a novel beamformer to receive linear array based on Spatially Variant Apodization. This technique reduces the side-lobe level compared with a uniform linear array, at the same time keeping the main lobe beam-width. For example, the side-lobe level of a 128-element linear array would be better than −30 dB in the presence of phase and amplitude errors based on the proposed technique (5.8 degrees r.m.s. and 0.5 dB r.m.s. respectively).

Keywords: linear antenna arrays, receiving antennas, adaptive filters, spatial filters