Subarray configurations for digital beamforming with low sidelobes and adaptive interference suppression

Author

Nickel, Ulrich R O

Author_Institution

Dept. of Electron., FGAN-FFM, Wachtberg, Germany

fYear

1995

fDate

8-11 May 1995

Firstpage

714

Lastpage

719

Abstract

The paper investigates how subarrays in a large phased array should be arranged. The aim is to form sum and difference beams with low sidelobes with and without adaptation against external interference. At each array element phase shifting and amplitude tapering for one beam with low sidelobes is assumed. The other beams (e.g. difference beams) have to be formed digitally at the subarray outputs. Problems with grating lobes are considered

Keywords

adaptive signal processing; antenna phased arrays; antenna radiation patterns; array signal processing; interference suppression; radar antennas; radar interference; radar signal processing; radiofrequency interference; adaptive interference suppression; amplitude tapering; difference beams; digital beamforming; external interference; grating lobes; large phased array; low sidelobes; phase shifting; subarray configurations; sum beams; Adaptive arrays; Apertures; Array signal processing; Gratings; Interference suppression; Jamming; Nickel; Phased arrays; Radar antennas; Shape;

fLanguage

English

Publisher

ieee

Conference_Titel

Radar Conference, 1995., Record of the IEEE 1995 International

Conference_Location

Alexandria, VA

Print_ISBN

0-7803-2121-9

Type

conf

DOI

10.1109/RADAR.1995.522636

Filename

522636