Title :
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
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;
Conference_Titel :
Radar Conference, 1995., Record of the IEEE 1995 International
Conference_Location :
Alexandria, VA
Print_ISBN :
0-7803-2121-9
DOI :
10.1109/RADAR.1995.522636
