DocumentCode :
821275
Title :
An interference-tolerant algorithm for localization of cyclostationary-signal sources
Author :
Izzo, Luciano ; Paura, Luigi ; Poggi, Giovanni
Author_Institution :
Dept. of Electron. Eng., Naples Univ., Italy
Volume :
40
Issue :
7
fYear :
1992
fDate :
7/1/1992 12:00:00 AM
Firstpage :
1682
Lastpage :
1686
Abstract :
A method for detecting the number of cyclostationary signals radiated by remote sources and for estimating their directions of arrival by a linear and uniform array is presented. Whereas the traditional techniques exploit the spatial coherent properties, the new method locates the signal sources using the spectral coherence properties as well. This approach eliminates the need to know the characteristics of the noise and the interference, regardless of the extent of their spectral overlap. Moreover, the method applied equally well to environments containing more interferers than sensors. The conditions of applicability of the method are the existence and the knowledge of a cycle frequency at which all the signal sources exhibit spectral correlation but the noise and interference signals do not, and the existence and the knowledge of a value of the lag parameter such that the cyclic cross-correlation matrix of the desired signals has full rank
Keywords :
correlation methods; interference; noise; parameter estimation; signal processing; arrival direction estimation; cycle frequency; cyclic cross-correlation matrix; cyclostationary-signal sources; interference-tolerant algorithm; lag parameter; signal processing; source localisation; spectral coherence properties; spectral correlation; Coherence; Direction of arrival estimation; Eigenvalues and eigenfunctions; Frequency; Interference elimination; Noise generators; Sensor arrays; Sensor phenomena and characterization; Thermal sensors; Working environment noise;
fLanguage :
English
Journal_Title :
Signal Processing, IEEE Transactions on
Publisher :
ieee
ISSN :
1053-587X
Type :
jour
DOI :
10.1109/78.143440
Filename :
143440
Link To Document :
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