Title :
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
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;
Conference_Titel :
Millimeter Waves (GSMM), 2012 5th Global Symposium on
Conference_Location :
Harbin
Print_ISBN :
978-1-4673-1302-5
DOI :
10.1109/GSMM.2012.6314413
