Title :
A new method for the underwater acoustic positioning: Virtual short baseline positioning
Author :
Juan, Yang ; Feng, Xu
Author_Institution :
Inst. of Acoust., Chinese Acad. of Sci. Beijing, Beijing
Abstract :
The passive long baseline positioning system costs large computation to initial the target position. To minish the computation, a new system called virtual short baseline system is presented to estimate the target position without increasing any instruments. The virtual short baseline system is composed by the hydrophone itself and the virtual source of this hydrophone´s sea surface reflection. The combination of the virtual short baseline together with the long baseline system to estimate the target position also improve the three dimension positioning accuracy. At last, the simulation results are given.
Keywords :
hydrophones; object detection; underwater sound; 3D positioning accuracy; hydrophone; passive long baseline positioning system; sea surface reflection; target position; underwater acoustic positioning; virtual short baseline positioning; virtual source; Computational efficiency; Delay effects; Delay estimation; Hydrogen; Instruments; Large-scale systems; Nonlinear equations; Sea surface; Sonar equipment; Underwater acoustics; long baseline system; passive positioning; time space association; virtual short baseline system;
Conference_Titel :
Industrial Electronics and Applications, 2009. ICIEA 2009. 4th IEEE Conference on
Conference_Location :
Xi´an
Print_ISBN :
978-1-4244-2799-4
Electronic_ISBN :
978-1-4244-2800-7
DOI :
10.1109/ICIEA.2009.5138940