Title :
Improvement methods of angular resolution of antenna array
Author_Institution :
Fac. of Electr. Eng. & Inf., Univ. of Pardubice, Pardubice, Czech Republic
Abstract :
The paper deals with angular resolution of phased antenna arrays and with methods of better angular resolution based on spectral estimation in the case of two close targets. Angular resolution with continuous scanning is dependent mainly on the angle distance between two close targets. Angular resolution with electronic scanning is not dependent only on the distance between two close targets, but also on the step size angle and starting point angle of scanning. It is possible to achieve better angular resolution by methods of direction of arrival (DOA). This paper presents DOA analysis of angular resolution of these methods: Capon, Pisarenko, MUSIC and ESPRIT.
Keywords :
antenna phased arrays; direction-of-arrival estimation; Capon; DOA analysis; ESPRIT; MUSIC; Pisarenko; angular resolution; continuous scanning; direction of arrival; electronic scanning; phased antenna arrays; spectral estimation; Antenna arrays; Arrays; Direction-of-arrival estimation; Estimation; Multiple signal classification; Signal resolution; Signal to noise ratio; Capon; ESPRIT; MUSIC; Pisarenko; angular resolution; direction of arrival; electronically scanned antenna arrays; precision approach radar;
Conference_Titel :
Microwave Techniques (COMITE), 2015 Conference on
Conference_Location :
Pardubice
Print_ISBN :
978-1-4799-8121-2
DOI :
10.1109/COMITE.2015.7120314
