2-D DOA Estimation for Uniform Circular Arrays with PM

Author

Lian, Xiaohua ; Zhou, Jianjiang

Author_Institution

Dept. of Electr. & Electron. Eng., Nanjing Univ. of Aeronaut. & Astronaut., Nanjing

fYear

2006

fDate

26-29 Oct. 2006

Firstpage

1

Lastpage

4

Abstract

This paper introduces the propagator method (PM) to 2-D direction of arrival (DOA) estimation for uniform circular arrays (UCA). Two kinds of PM are presented, PM-ESPRIT and PM-MUSIC. Both operate in beamspace and require no eigen-decomposition calculation, therefore reduce the computational load significantly. PM-ESPRIT, which has natural pair matching structure, can provide accurate searching starts for PM-MUSIC, after introducing a new random process with zero mean. PM-MUSIC, based on real-valued beamspace manifold, achieves high resolution in 2-D DOA estimation for incoherent signal sources and has a better performance in dealing with the highly coherent sources than UCA-RB-MUSIC.

Keywords

array signal processing; direction-of-arrival estimation; random processes; signal classification; signal resolution; 2-D DOA estimation; PM-ESPRIT; PM-MUSIC; direction of arrival estimation; incoherent signal sources; natural pair matching structure; propagator method; random process; real-valued beamspace manifold; signal resolution; uniform circular arrays; Computational complexity; Computational modeling; Direction of arrival estimation; Multiple signal classification; Narrowband; Random processes; Signal resolution; Smoothing methods; Transmission line matrix methods; White noise;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas, Propagation & EM Theory, 2006. ISAPE '06. 7th International Symposium on

Conference_Location

Guilin

Print_ISBN

1-4244-0162-3

Electronic_ISBN

1-4244-0163-1

Type

conf

DOI

10.1109/ISAPE.2006.353449

Filename

4168110