Handbook of mathematics (3rd ed.)
Handbook of mathematics (3rd ed.)
A design method and coordinate determination algorithm for multi-element USBL systems
ICS'09 Proceedings of the 13th WSEAS international conference on Systems
An approach for design of multi-element USBL systems
WSEAS TRANSACTIONS on SYSTEMS
A design method for USBL systems with skew three-element arrays
CISST '11 Proceedings of the 5th WSEAS international conference on Circuits, systems, signal and telecommunications
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This paper presents an approach to resolve the problem of low Z-coordinate determination accuracy for ultra-short baseline (USBL) acoustic systems in which the location measurement of the underwater objects is based on the determination of the distance to the object and the angle object position. The antenna with five receiving elements and different spatial orientation of receiving bases is proposed. It is assumed that the receiving antenna may have the significant inclinations and the orientation of the USBL antenna which is controlled by measuring of the pitch and roll angles. The problem of the low precision Z-coordinate determination is resolved by means of utilizing various spatial orientations of the receiving bases in a modernized five element USBL system. The computer simulation results of the proposed algorithm are presented to demonstrate reliable operation of the algorithm for different angular antenna positions and various locations of the object. The results of the calculation of the errors of the determination of the object coordinates and accuracy evaluation of modernized USBL system are presented.