期刊
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
卷 13, 期 -, 页码 1015-1018出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LAWP.2014.2323351
关键词
Beamforming; radio astronomy; sidelobe blanking; sidelobe suppression; time-modulated array
资金
- Air Force Summer Faculty Program through American Society for Engineering Education (ASEE) [FA9550-09-C-0114]
Time modulation is applied to an array pattern by alternating a beamformer between two sets of beamforming coefficients. The coefficients are selected so signals arriving in the sidelobes are BPSK modulated by the beam switching, while signals arriving in the main lobe are not. This technique permits sidelobe blanking using a single beamformer, which is simpler than other approaches. Methods of array synthesis are presented along with a simulation example using a 32-element linear array.
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