Direction-of-arrival estimation using radiation power pattern with an ESPAR antenna

• Published in: IEEE transactions on antennas and propagation Vol. 53; no. 2; pp. 678 - 684
• Main Authors: Taillefer, E., Hirata, A., Ohira, T.
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.02.2005; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Adaptive arrays; Adjustable reactance; Anechoic chambers; Antenna arrays; Antennas; Applied sciences; Computer simulation; cross-correlation; Direction of arrival estimation; direction-of-arrival (DoA); Directive antennas; directive beam patterns; electronically steerable parasitic array radiator (ESPAR) antenna; Exact sciences and technology; Gaussian noise; high precision; Multiple signal classification; Prototypes; Radiocommunications; Telecommunications; Telecommunications and information theory; Wireless communication; Performance evaluation; Direction-of-arrival estimation; Parameter estimation; Output power; cross-correlation; Computer simulation; electronically steerable parasitic array radiator (ESPAR) antenna; Diversity; Signal estimation; High precision; Crossed antenna; Adjustable reactance; Anechoic room; Reactance; Gaussian noise; Arrival angle; Cross correlation; Steerable antenna; Radiation pattern; direction-of-arrival (DoA); directive beam patterns; Antenna array; Antenna radiation patterns
• DOI: 10.1109/TAP.2004.841312
• ISSN: 0018-926X

An approach for estimating direction-of-arrival (DoA) based on power output cross-correlation and antenna pattern diversity is proposed for a reactively steerable antenna. An "estimator condition" is proposed, from which the most appropriate pattern shape is derived. Computer simulations with directive beam patterns obtained from an electronically steerable parasitic array radiator antenna model are conducted to illustrate the theory and to inspect the method performance with respect to the "estimator condition". The simulation results confirm that a good estimation can be expected when suitable directive patterns are chosen. In addition, to verify performance, experiments on estimating DoA are conducted in an anechoic chamber for several angles of arrival and different scenarios of antenna adjustable reactance values. The results show that the proposed method can provide high-precision DoA estimation.