Title :
Resolution analysis and enhancement of the eigenspace based rooting method of source localization
Author :
Marks, Joseph A. ; Buckley, Kevin M.
Author_Institution :
Dept. of Electr. Eng., Minnesota Univ., Minneapolis, MN, USA
Abstract :
An effective approach to resolution enhancement of rooting methods of source localization is introduced. An approach to the statistical analysis of rooting methods is also introduced, and this approach is used to derive signal-root variance and bias expressions which are accurate for SNR down to the resolution threshold region. Simulation results are presented to verify the analysis, illustrating the resolution advantage of this new source localization approach
Keywords :
array signal processing; eigenvalues and eigenfunctions; statistical analysis; SNR; array processing; bias expressions; eigenspace based method; resolution enhancement; rooting methods; signal-root variance; source localization; statistical analysis; uniform linear array; Analytical models; Covariance matrix; Eigenvalues and eigenfunctions; Equations; Multiple signal classification; Phased arrays; Polynomials; Sensor arrays; Signal resolution; Statistical analysis;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1992. ICASSP-92., 1992 IEEE International Conference on
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-0532-9
DOI :
10.1109/ICASSP.1992.226519
