A Simple AoA Estimation Scheme.
作者： Daniele Trinchero , Tarek M. Elfouly , Ahmed Badawy , Tamer Khattab , Amr Mohamed
DOI:
关键词: Mathematics 、 Electronic engineering 、 Radio frequency 、 Independence (probability theory) 、 Antenna (radio) 、 Antenna array 、 Angle of arrival 、 Computational complexity theory 、 Directional antenna 、 Signal
摘要: We propose an intuitive, simple and hardware friendly, yet surprisingly novel efficient, received signal's angle of arrival (AoA) estimation scheme. Our two-phases cross-correlation based scheme relies on a switched beam antenna array, which is used to collect omni-directional signal using few elements the array in first phase. In second phase, switches main scan angular region interest. The collected from each (direction or angle) cross correlated with signal. coefficient will be highest at correct AoA relatively negligible elsewhere. proposed simplicity stems its low computational complexity (only comparison operations are required) independence transmitted structure (does not require information about signal). requires receiver can attached single radio frequency chain through phase shifters, hence, friendliness. high efficiency our system observed by comparing performance literature's best performing MUSIC algorithm. demonstrates that outperforms algorithm, specially SNR levels. Moreover, number sources detected bound beams, rather than case
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