Patent ID: 8755752

Claim:
A radio wave propagation characteristic estimation system, comprising: a map data memory unit which stores map data containing structure data which shows locations and stereoscopic shapes of structures existing within peripheral areas of a transmission point and an observation point; a reference line specification module which specifies a reference altitude based on at least one of an altitude of the transmission point and an altitude of the observation point; an object selection module which reads out the map data from the map data memory unit, and selects a structure of a height equal to or higher than the reference altitude from among the structures shown in the structure data contained in the map data for calculating a radio wave propagation path; a radio wave propagation path calculation module which searches the path of the radio wave emitted from the transmission point based on the structure data regarding the structure selected by the object selection module, and calculates the propagation path through which the radio wave reaches the observation point; and a radio wave propagation characteristic estimation module which estimates a propagation characteristic of the radio wave arriving at the observation point based on the calculated radio wave propagation path.