Title :
High resolution DOA estimation using matrix pencil
Author :
Jinhwan Koh ; Sarkar, T.K.
Author_Institution :
GyungSang Nat. Univ., Jinju, South Korea
Abstract :
In this research, the matrix pencil method (MPM) has been compared to the well known root-MUSIC algorithm. The term pencil refers to obtaining the exponent of a sum of complex exponentials. Actually, MPM is a variation of the eigen-structure approach and it uses the input pencil matrix instead of the input covariance matrix. By mapping the noise components to the null space, the signal components can be distinguished exactly. Simulation results show that the MPM has a superior ability of discriminating closely spaced targets from a single target compared to the root-MUSIC algorithm.
Keywords :
direction-of-arrival estimation; eigenvalues and eigenfunctions; matrix algebra; MPM; closely spaced target discrimination; complex exponential sum exponent; eigen-structure; high resolution DOA estimation; input pencil matrix; matrix pencil method; noise components null space mapping; root-MUSIC algorithm; Computational efficiency; Covariance matrix; Delay; Direction of arrival estimation; Eigenvalues and eigenfunctions; Frequency estimation; Multiple signal classification; Parameter estimation; Signal generators; Signal resolution;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2004. IEEE
Conference_Location :
Monterey, CA, USA
Print_ISBN :
0-7803-8302-8
DOI :
10.1109/APS.2004.1329664
