An algorithm on high resolution DOA estimation with unknown number of signal sources

Author

Chong-Ying, Qi ; Yong-Shun, Zhang ; Ying, Han ; Xi-hong, Chen

Author_Institution

Missile Inst., Air Force Eng. Univ., Sanyuan, China

fYear

2004

Firstpage

227

Lastpage

230

Abstract

A new algorithm to estimate the DOAs without knowing the number of signal sources is proposed in this paper. The new algorithm, using the linear prediction (LP) or Pisarenko method in conjunction with adaptive signal parameter, estimation and classification technique (ASPECT) to estimate the DOAs, is with high resolution and no need knowing the number of signal sources. The ASPECT is used to identify the spurious peaks in DOAs and the number of signal sources can be determined at the same time. Through the algorithm, computational complexity can be reduced and the spectrum resolution can be improved also. Computer simulation results approve the correctness and validity of the new algorithm.

Keywords

computational complexity; direction-of-arrival estimation; ASPECT; Pisarenko method; adaptive signal parameter, estimation and classification technique; computational complexity; computer simulation; high resolution DOA estimation; linear prediction; signal sources; spectrum resolution; spurious peaks; Computational complexity; Computer simulation; Covariance matrix; Direction of arrival estimation; Missiles; Parameter estimation; Sensor arrays; Signal processing; Signal resolution; Vectors;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Millimeter Wave Technology, 2004. ICMMT 4th International Conference on, Proceedings

Print_ISBN

0-7803-8401-6

Type

conf

DOI

10.1109/ICMMT.2004.1411504

Filename

1411504