A modified virtual array ESPRIT algorithm based on real signal subspace

Author

Liu Ning ; Shi Haoshan ; Liu Liping ; Yang Bo

Author_Institution

Sci. & Technol. on UAV Lab., Northwestern Polytech. Univ., Xi´an, China

fYear

2014

fDate

2-5 Dec. 2014

Firstpage

73

Lastpage

74

Abstract

A new ESPRIT method based on virtual array in the presence of coherent signals is presented. Using the received dates and its conjugate information, we reconstructed array data matrix. To reduce the complexity of algorithm, a real signal subspace can be obtained by a unitary transformation. Using the modified U-VC-ESPRIT which has small amount of calculation, we estimated DOA of non-circular coherent signal with arbitrary phase without array aperture reduction and effective element loss. The simulation results verified the effectiveness and superiority of the algorithm.

Keywords

array signal processing; covariance matrices; direction-of-arrival estimation; DOA estimation; ESPRIT method; array data matrix reconstruction; conjugate information; modified U-VC-ESPRIT; noncircular coherent signal; real signal subspace; received dates; unitary transformation; virtual array; Covariance matrices; Direction-of-arrival estimation; Estimation; Sensor arrays; Signal to noise ratio; DOA; Unitary ESPRIT; Virtual Array; coherent signals;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (ISAP), 2014 International Symposium on

Conference_Location

Kaohsiung

Type

conf

DOI

10.1109/ISANP.2014.7026536

Filename

7026536