Title :
A numerically robust method for DOA estimation
Author :
Feng, Z.M. ; Cui, X.W. ; Zhuang, X.B. ; Lu, M.Q.
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing
Abstract :
In this paper, a numerically robust method for direction of arrival (DOA) estimation based on the multiple signal classification (MUSIC) algorithm is proposed. The new signal subspace is obtained by the column space of the transform matrix in the Householder-based Multistage Wiener Filter (HMSWF). The Householder transform matrix in HMSWF ensures the unitary blocking operation and significantly strengthens the orthogonal property between the basis vectors in finite-precision implementation. Compared with the traditional MSWF, simulation results demonstrate the numerically robust performance of the proposed method.
Keywords :
direction-of-arrival estimation; matrix algebra; signal classification; transforms; DOA estimation; direction of arrival estimation; multiple signal classification algorithm; multistage Wiener flter; transform matrix; direction of arrival(DOA); eigenvalue decomposition(ED); householder transform; multiple signal classification(MUSIC); multistage wiener filter(MSWF);
Conference_Titel :
Radar Conference, 2009 IET International
Conference_Location :
Guilin
Print_ISBN :
978-1-84919-010-7
