Interference Suppression of Subarray Adaptive Beamforming in Presence of Sensor Dispersions

被引：15
|
作者：
Doisy, Yves [1 ]
Deruaz, Laurent [1 ]
Been, Robert [2 ]
机构：
[1] Thales Underwater Syst, F-06903 Sophia Antipolis, France
[2] NURC, I-19126 La Spezia, Italy
来源：
IEEE TRANSACTIONS ON SIGNAL PROCESSING | 2010年 / 58卷 / 08期
关键词：
Active sonar; adaptive beamforming; anti-jamming; Doppler processing; Doppler spreading; reverberation; space-time adaptive processing; towed array;
D O I：
10.1109/TSP.2010.2048106
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
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.
引用
收藏
页码：4195 / 4212
页数：18
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