Patent ID: 8965686
Filing Date: 2015-02-24
Classification: G01C

Abstract:
1. A method for computing a vehicle path by considering satellite communication channel states, the method comprising: searching for a plurality of candidate paths, each path connected from a starting point to a destination; analyzing a satellite communication channel state with respect to each of the candidate paths, based on a receiving sensitivity of an electric wave received from a satellite; setting one of the candidate paths as a first path, based on the analyzed satellite communication channel states; and mapping the first path onto a map, and displaying the first path on a display unit, wherein the step of analyzing a satellite communication channel state comprises: extracting azimuth information from a satellite signal received from the satellite; calculating propagation loss with respect to each of the candidate paths, further based on the azimuth information by detecting an obstacle positioned within a prescribed range based on a position on each of the candidate paths; and calculating propagation loss occurring due to the detected obstacle by applying a different attenuation ratio based on the type of obstacle; and analyzing the satellite communication channel state based on the calculated propagation loss.