Title :
Estimating two-dimensional directions of arrival of narrow band sources
Author :
Yin, Qin-ye ; Newcomb, Robert W. ; Zou, Li-He
Author_Institution :
Microsyst. Lab., Maryland Univ., College Park, MD, USA
Abstract :
A new approach to making high-resolution estimates of two-dimensional (2-D) directions of arrival (DOA) of multiple narrowband sources for a rectangular sensor array is presented. By fully using the properties of the autocovariance and cross-covariance matrices, the authors construct a new matrix called the generalized DOA matrix method. Theoretical analysis shows that 2-D signal direction vectors may be obtained from the eigendecomposition of the generalized DOA matrix. Without 2-D searches, the method is highly efficient in computation. Simulation results are given to illustrate its good performance
Keywords :
eigenvalues and eigenfunctions; matrix algebra; parameter estimation; signal detection; 2-D signal direction vectors; autocovariance matrix; computational efficiency; cross-covariance matrix; eigendecomposition; generalized DOA matrix method; high-resolution estimates; multiple narrowband sources; rectangular sensor array; two-dimensional directions of arrival; Additive noise; Computational modeling; Control engineering; Covariance matrix; Direction of arrival estimation; Educational institutions; Narrowband; Sensor arrays; Signal analysis; Signal processing;
Conference_Titel :
Computer and Communication Systems, 1990. IEEE TENCON'90., 1990 IEEE Region 10 Conference on
Print_ISBN :
0-87942-556-3
DOI :
10.1109/TENCON.1990.152639
