Title :
A subspace rotation-based technique for estimating 2-D arrival angles using nonlinear array configurations
Author :
Sakarya, F. Ayhan ; Hayes, Monson H., III
Author_Institution :
Sch. of Electr. Eng., Georgia Inst. of Technol., Atlanta, GA, USA
fDate :
2/1/1994 12:00:00 AM
Abstract :
This paper presents a subspace rotation based method to estimate 2-D direction-of-arrival (DOA) angles of narrowband signals radiated by far-field sources using planar and volume arrays. The new approach automatically pairs 2-D DOA angles by computing them directly from the normalized eigenvectors of a newly derived signal space matrix (SSM). This eliminates the constraint on subarray spacing and the need for a search procedure. Other advantages include adjustability in the accuracy of the DOA angles and maximum detectability of the master array
Keywords :
array signal processing; eigenvalues and eigenfunctions; matrix algebra; parameter estimation; 2-D arrival angles estimation; DOA angles; array processing; far-field sources; narrowband signals; nonlinear array; normalized eigenvectors; planar arrays; signal space matrix; subarray spacing; subspace rotation; volume arrays; Additive noise; Background noise; Direction of arrival estimation; Multiple signal classification; Narrowband; Sensor arrays; Signal processing; Strontium; Transmission line matrix methods; Yield estimation;
Journal_Title :
Signal Processing, IEEE Transactions on
