Title :
Broadband beamforming with alpha-stable distributions
Author :
Tsakalides, Panagiotis ; Nikias, Chrysostomos L.
Author_Institution :
Dept. of Electr. Eng. Syst., Univ. of Southern California, Los Angeles, CA, USA
fDate :
Oct. 30 1995-Nov. 1 1995
Abstract :
In this paper, we study the problem of localizing wide-band sources in the presence of noise modeled as a complex isotropic stable process. We consider the frequency-domain representation of the sensor outputs and show that the spectral density of complex stable processes plays a role, in array processing problems, analogous to that played by the power spectral density of second-order processes.
Keywords :
array signal processing; alpha-stable distributions; array processing problems; broadband beamforming; complex isotropic stable process; frequency-domain representation; noise; sensor outputs; spectral density; wide-band source; 1f noise; Array signal processing; Delay; Focusing; Frequency estimation; Image processing; Power system modeling; Sensor arrays; Signal processing; Wideband;
Conference_Titel :
Signals, Systems and Computers, 1995. 1995 Conference Record of the Twenty-Ninth Asilomar Conference on
Conference_Location :
Pacific Grove, CA, USA
Print_ISBN :
0-8186-7370-2
DOI :
10.1109/ACSSC.1995.540871
