access icon free Spatial rotation technique with application to unmanned underwater vehicle (UUV) sonar arrays

A spatial rotation technique in application to unmanned underwater vehicle (UUV) sonar arrays is proposed. The essence of the technique is to rotate the signals of interest from the array coordinates to geodetic coordinates while providing robustness against interferences and preserving the white noise property at the output. Convex formulation of the rotation matrix design problem is derived using the semi-definite relaxation technique and the optimal solution is obtained by rank-one decomposition theorems. Using the authors’ technique, the subspace-based direction of arrival estimation methods can get large snapshot support for weak sources in the UUV motion-case.

Inspec keywords: convex programming; direction-of-arrival estimation; sonar arrays; radar signal processing; autonomous underwater vehicles; matrix algebra

Other keywords: convex formulation; spatial rotation technique; semidefinite relaxation technique; unmanned underwater vehicle sonar arrays; array coordinates; rotation matrix design problem; subspace-based direction-of-arrival estimation methods; geodetic coordinates; rank-one decomposition theorems; UUV motion-case; UUV sonar arrays; white noise property

Subjects: Oceanographic and hydrological techniques and equipment; Optimisation techniques; Algebra; Sonar and acoustic radar; Signal processing and detection

References

    1. 1)
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      • 4. Forster, P., Vezzosi, G.: ‘Application of spheroidal sequences to array processing’. Proc. IEEE Int. Conf. on Acoustics, Speech, and Signal Processing, ICASSP'87, Dallas, TX, USA, May 1987, pp. 22682271.
    3. 3)
    4. 4)
    5. 5)
http://iet.metastore.ingenta.com/content/journals/10.1049/el.2017.3502
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