Title :
A direct band-pass implementation of subspace-based techniques for direction finding and digital beamforming applications
Author :
Nguyen, Hung H. ; Nuteson, Todd W. ; Mitchell, Gregory S.
Author_Institution :
Aerosp. Corp., Chantilly, VA, USA
Abstract :
This paper presents a all-digital antenna array approach using direct band-pass or RF sampling, where an eight-channel system is fabricated in hardware and field tested. Measured results include direction finding for interfacing signals using both conventional digital beamforming and MUSIC algorithms. In all cases, the MUSIC direction finding algorithm clearly shows the angle of arrival whereas conventional digital beamforming exhibits some uncertainties in its angular power spectrum.
Keywords :
antenna arrays; antenna theory; array signal processing; direction-of-arrival estimation; linear antenna arrays; radio direction-finding; signal sampling; MUSIC algorithms; RF sampling; angle of arrival; angular power spectrum; band-pass implementation; digital antenna array; digital beamforming applications; direction finding; eight-channel system; subspace-based techniques; Aerospace testing; Antenna arrays; Array signal processing; Directive antennas; Field programmable gate arrays; Hardware; Linear antenna arrays; Multiple signal classification; Radio frequency; Sampling methods;
Conference_Titel :
Wireless Communications and Networking, 2003. WCNC 2003. 2003 IEEE
Conference_Location :
New Orleans, LA, USA
Print_ISBN :
0-7803-7700-1
DOI :
10.1109/WCNC.2003.1200388
