Interference Suppression of Subarray Adaptive Beamforming in Presence of Sensor Dispersions

The capability to reject strong and spatially spread interferences by means of subarray adaptive beamforming in presence of sensor dispersions is analyzed. Subarray adaptive beamforming is a beamspace adaptive beamforming well suited for rapid convergence applications, and in which the degrees of fr...

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Bibliographic Details
Published inIEEE transactions on signal processing Vol. 58; no. 8; pp. 4195 - 4212
Main Authors Doisy, Y, Deruaz, L, Been, R
Format Journal Article
LanguageEnglish
Published New York IEEE 01.08.2010
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Acoustic noise
Active sonar
adaptive beamforming
anti-jamming
Array signal processing
Arrays
Beamforming
Convergence
Covariance matrix
Dispersions
Doppler processing
Doppler spreading
Interference suppression
Jamming
Phased arrays
Reverberation
Sensor arrays
Sensors
Signal processing
Sonar
space-time adaptive processing
Spreads
Statistics
towed array
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Summary:The capability to reject strong and spatially spread interferences by means of subarray adaptive beamforming in presence of sensor dispersions is analyzed. Subarray adaptive beamforming is a beamspace adaptive beamforming well suited for rapid convergence applications, and in which the degrees of freedoms are automatically allocated to the suppression of the strongest eigenvalues. The statistics of the array gain in presence of spatially spread jammers are derived and applied to the purpose of reverberation suppression in active sonar in Continuous Wave mode. Examples on real data are provided to support the theoretical results.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
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ISSN:1053-587X
1941-0476
DOI:10.1109/TSP.2010.2048106