THREE-DIMENSIONAL POSITION MEASURING APPARATUS, MAPPING SYSTEM OF FLYING OBJECT, AND COMPUTER PROGRAM

摘要

PROBLEM TO BE SOLVED: To compute three-dimensional position coordinates of a projectile even when photographing is performed by one camera from one location and to create and display a map such as a projectile map on the basis of the three-dimensional position coordinates. SOLUTION: A three-dimensional position measuring apparatus includes both of the one camera (12) for photographing a projectile (50) in a prescribed space region (11) and a distance measuring means (24) for measuring the distance r from an origin O of a measuring position of the camera (12) to the projectile (50). Position data of the origin O of the measuring position and the azimuth directionΘof an optical axis (13) of the camera (12) are computed on the basis of position data and azimuth data based on a GPS receiver (15). The three-dimensional position of the position C of a screen center through which the optical axis (13) of the camera (12) passes. The three-dimensional position of the projectile (50) on a photograph screen is computed on the basis of the height and the horizontal distance from the position C of the screen center. The height and the horizontal distance from the position C of the screen center are computed on the basis of the distance r from the origin O of the measuring position to the projectile (50); an angle of elevationψof relative height; and a relative azimuthθ. COPYRIGHT: (C)2011,JPO&INPIT