TY - JOUR
T1 - Improved two-antenna direction finding inspired by human ears
AU - Zhou, Rongguo
AU - Zhang, Hualiang
AU - Xin, Hao
N1 - Funding Information:
Manuscript received August 11, 2010; revised November 03, 2010; accepted December 10, 2010. Date of publication May 10, 2011; date of current version July 07, 2011. This work was supported in part by the Army Research Office (ARO). R. Zhou and H. Xin are with the Department of Electrical and Computer Engineering and the Department of Physics, University of Arizona, Tucson, AZ 85721 USA (e-mail: [email protected]; [email protected]). H. Zhang is with the Department of Electrical Engineering, University of North Texas, Denton, TX 76207 USA (e-mail: [email protected]). Color versions of one or more of the figures in this paper are available online at http://ieeexplore.ieee.org. Digital Object Identifier 10.1109/TAP.2011.2152348
PY - 2011/7
Y1 - 2011/7
N2 - This paper presents an improved two-antenna microwave passive direction finding system inspired by the human auditory system. By incorporating a head-like scatterer between two monopole antennas, both phase and magnitude information can be utilized to estimate the direction of arrival (DOA) of a microwave signal, thus eliminating ambiguities associated with phase wrapping at high frequency, just like human ears. In addition, better DOA sensitivity is demonstrated with the incorporation of the head-like scatterer. Both numerical modeling and experimental results of a simple X-band two-monopole configuration with symmetric and asymmetric scatterers are presented.
AB - This paper presents an improved two-antenna microwave passive direction finding system inspired by the human auditory system. By incorporating a head-like scatterer between two monopole antennas, both phase and magnitude information can be utilized to estimate the direction of arrival (DOA) of a microwave signal, thus eliminating ambiguities associated with phase wrapping at high frequency, just like human ears. In addition, better DOA sensitivity is demonstrated with the incorporation of the head-like scatterer. Both numerical modeling and experimental results of a simple X-band two-monopole configuration with symmetric and asymmetric scatterers are presented.
KW - Biological inspired
KW - direction of arrival (DOA) estimation
KW - monopole
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U2 - 10.1109/TAP.2011.2152348
DO - 10.1109/TAP.2011.2152348
M3 - Article
AN - SCOPUS:79960140711
SN - 0018-926X
VL - 59
SP - 2691
EP - 2697
JO - IEEE Transactions on Antennas and Propagation
JF - IEEE Transactions on Antennas and Propagation
IS - 7
M1 - 5765478
ER -