Direction-of-Arrival Estimation (DoA) Using Switched Parasitic Planar Arrays and the Method of Genetic Algorithms

Varlamos, PK; Capsalis, CN

dc.contributor.author	Varlamos, PK	en
dc.contributor.author	Capsalis, CN	en
dc.date.accessioned	2014-03-01T01:20:16Z
dc.date.available	2014-03-01T01:20:16Z
dc.date.issued	2004	en
dc.identifier.issn	0929-6212	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/15869
dc.subject	Direction-of-arrival estimation	en
dc.subject	Electronic beam steering	en
dc.subject	Genetic algorithms	en
dc.subject	Smart antennas	en
dc.subject	Switched parasitic arrays	en
dc.subject.classification	Telecommunications	en
dc.subject.other	Antenna feeders	en
dc.subject.other	Arrays	en
dc.subject.other	Broadband amplifiers	en
dc.subject.other	Control systems	en
dc.subject.other	Electronic equipment	en
dc.subject.other	Genetic algorithms	en
dc.subject.other	Mathematical models	en
dc.subject.other	Signal processing	en
dc.subject.other	Direction-of-arrival estimation	en
dc.subject.other	Electronic beam steering	en
dc.subject.other	Smart antennas	en
dc.subject.other	Switched parasitic arrays	en
dc.subject.other	Radio direction finding systems	en
dc.title	Direction-of-Arrival Estimation (DoA) Using Switched Parasitic Planar Arrays and the Method of Genetic Algorithms	en
heal.type	journalArticle	en
heal.identifier.primary	10.1023/B:WIRE.0000015382.62938.1c	en
heal.identifier.secondary	http://dx.doi.org/10.1023/B:WIRE.0000015382.62938.1c	en
heal.language	English	en
heal.publicationDate	2004	en
heal.abstract	An electronically controllable, switched parasitic planar array can be used for the purpose of direction finding. The method proposed in this paper exploits the electronic beam steering, achieved by simply inserting an appropriate digital word in the antenna feeding circuit, to resolve two signals. A genetic algorithm was used to determine the strengths and the angular positions of the incoming signals in the azimuth plane. The results obtained concentrate on wideband signaling in a multipath environment, with and without the presence of noise. The antenna design and the reliability of the direction-finding method are presented. The proposed method is strongly dependent on the type of the receiving antenna (a switched parasitic planar array is superior to a ""uniform"" antenna with identical radiation patterns). Increasing the number of radiation patterns available improves the reliability of the method. The reliability of the method slightly deteriorates, as the angular discrimination of the incoming signals becomes smaller, but the results remain quite satisfying.	en
heal.publisher	KLUWER ACADEMIC PUBL	en
heal.journalName	Wireless Personal Communications	en
dc.identifier.doi	10.1023/B:WIRE.0000015382.62938.1c	en
dc.identifier.isi	ISI:000188856800004	en
dc.identifier.volume	28	en
dc.identifier.issue	1	en
dc.identifier.spage	59	en
dc.identifier.epage	75	en