| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a program for making a computer function as a calculation device of separation distance for supporting study of troubles to an existing wireless propagation path. <P>SOLUTION: The calculation device 800 of separation distance comprises a storage unit 810, a coordinate space conversion unit 820 which converts each coordinate value of a real space into the coordinate value of an equivalent space, a calculation unit 830 which calculates the coordinate value of an intersection where the distance from a building to a wireless propagation path is minimum, an orthogonal coordinate system/ellipsoidal coordinate system conversion unit 840 which converts a coordinate value in the orthogonal coordinate system into a coordinate value in the ellipsoidal coordinate system, a re-conversion unit 850 which re-converts a coordinate value of the ellipsoidal coordinate system in the equivalent space into a coordinate value of the ellipsoidal coordinate system in the real space, and a distance calculation unit 860 which calculates the distance between a building and the intersection based on the coordinate value of the building and the coordinate value of each intersection. <P>COPYRIGHT: (C)2012,JPO&INPIT |
