A fast computing method for circular array space time adaptive processing

Author

Shuangxun, Li ; Zhan, Wang ; Shengqiang, Lou ; Yonghong, Zhan

Author_Institution

Coll. of Electron. Sci. & Eng., Nat. Univ. of Defense Technol., Changsha, China

fYear

2012

fDate

27-30 May 2012

Firstpage

612

Lastpage

615

Abstract

A fast implementation of space time adaptive for 7-elements circular array is discussed in this paper. This implementation is based on the CG (Conjugate Gradient) based MSNWF. We find a simplified method to calculate the signal covariance matrix by utilizing the array parallelogram relationship for the 7-elements circular array. We also find a fast implementation to calculate the multiply product between the covariance matrix and a vector by utilizing the Topelitz feature of the covariance matrix. The computation comparison shows that the new implementation is efficient.

Keywords

array signal processing; conjugate gradient methods; covariance matrices; space-time adaptive processing; 7-elements circular array; CG based MSNWF; Topelitz feature; array parallelogram relationship; circular array space time adaptive processing; conjugate gradient; fast computing method; multiply product; signal covariance matrix; Adaptive filters; Arrays; Covariance matrix; Equations; Mathematical model; Noise; Vectors; FFT; MSNWF; STAP; Toeplitz;

fLanguage

English

Publisher

ieee

Conference_Titel

Millimeter Waves (GSMM), 2012 5th Global Symposium on

Conference_Location

Harbin

Print_ISBN

978-1-4673-1302-5

Type

conf

DOI

10.1109/GSMM.2012.6314413

Filename

6314413