Title :
A harmonic noise model for direction finding in colored ambient noise
Author :
Vanpoucke, Filiep ; Paulraj, Arogyaswami
Author_Institution :
Dept. of Electr. Eng., Katholieke Univ., Leuven, Belgium
fDate :
7/1/1995 12:00:00 AM
Abstract :
High-resolution algorithms for direction finding of narrowband sources require a good estimate of the noise correlation matrix. We derive a physically motivated linear noise model. It is based on a Fourier expansion of the ambient noise field and is applicable to arbitrary antenna arrays. We also show that for contrived cases, a linear model may not be uniquely identifiable.<>
Keywords :
Fourier series; antenna arrays; direction-of-arrival estimation; harmonic analysis; noise; Fourier expansion; ambient noise field; arbitrary antenna arrays; colored ambient noise; direction finding; harmonic noise model; high-resolution algorithms; linear model; narrowband sources; noise correlation matrix; physically motivated linear noise model; Antenna arrays; Colored noise; Fourier series; Multiple signal classification; Narrowband; Navigation; Noise generators; Sensor arrays; White noise; Working environment noise;
Journal_Title :
Signal Processing Letters, IEEE
