A High Resolution Spatial Smoothing Algorithm

Author

Mei, Dong ; Shouhong, Zhang ; Xiangdong, Wu ; Huanying, Zhang

Author_Institution

Xidian Univ., Xii´´an

fYear

2007

fDate

16-17 Aug. 2007

Firstpage

1031

Lastpage

1034

Abstract

A high resolution spatial smoothing algorithm which takes cross correlation to the autocorrelation matrixes of subarray output is proposed to increase the angular resolution of conventional spatial smoothing techniques. The formula for the algorithm is derived, and the performance of the algorithm is also analyzed. Simulation results demonstrate that the improved algorithm possesses a better resolving ability and a lower SNR threshold than the conventional spatial smoothing technique and the subarray cross correlation spatial smoothing technique for DOA estimation of coherent signals.

Keywords

correlation methods; direction-of-arrival estimation; smoothing methods; DOA estimation; angular resolution; autocorrelation matrixes; coherent signals; high resolution smoothing algorithm; spatial smoothing algorithm; subarray cross correlation; subarray output; Autocorrelation; Cascading style sheets; Covariance matrix; Microwave antennas; Microwave theory and techniques; Sensor arrays; Signal processing algorithms; Signal resolution; Smoothing methods; Spatial resolution; DOA estimation; correlation; spatial smoothing;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, 2007 International Symposium on

Conference_Location

Hangzhou

Print_ISBN

978-1-4244-1045-3

Electronic_ISBN

978-1-4244-1045-3

Type

conf

DOI

10.1109/MAPE.2007.4393443

Filename

4393443