A Better Point Selection Methods for Coordinate of Acoustic Array of Underwater Array
ZHANG Yongchao
XU Guogui
Abstract：Obtaining the precise coordinate of acoustic array, it is important for measurement and localization of subaqueous object.Using a ship for measuring the coordinate of acoustic array in some assured positions, the track of ship is a ellipse.Choosing three positions, it can use spherical intersecting for calculating the coordinate of acoustic array.But the calculating error is bigger.It can get a plane which have the normal through the point in the ellipse-track and a point when the Acoustic Array located in the first instance.It has two points when the plane intersecting with ellipse, and it can use the points finding another two point by calculating their minimum distance.So the three points are needed.
Keywords：acoustic arrayspherical intersectingpositioning errorpoint selection methods
Publication Date：2017-04-02
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 35-37,73 )