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Sub-Bands Beam-Space Adaptive Beamformer for Port-Starboard Rejection in Triplet Sonar Arrays

Citation Author(s):
Alessandra Tesei, Alain Maguer, Fabrizio Ferraioli, Valerio Latini, Luca Pesa
Submitted by:
Pietro Stinco
Last updated:
17 November 2018 - 5:20am
Document Type:
Poster
Document Year:
2018
Event:
Presenters:
Pietro Stinco
Paper Code:
1021
 

This work addresses the problem of Port-Starboard (PS) beamforming for low-frequency active sonar (LFAS) with a triplet receiver array.

The work presents a new algorithm for sub-bands beam-space adaptive beamforming with twist compensation and evaluates its performance with experimental data collected at sea.

The results show that the algorithm provides the ability to solve the PS ambiguity with a strong PS rejection even at end-fire where ordinary triplet beamformers have poor performance, allowing to unmask targets in the presence of strong coastal reverberation and/or traffic noise.

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