Patent ID: 9538500
Date: 2017-01-03
CPC Classifications: G01S,H04W

Claim:
1. A method for determining a moving path direction of a terminal and correcting a position thereof, comprising: acquiring N pieces of position information of the terminal that include current position information and past position information of the terminal; calculating a linear function for the N pieces of position information, and estimating relative direction information based on a slope value of the linear function; determining whether the estimated relative direction information corresponds to a forward direction or a backward direction, to thereby acquire first relative direction information that is the relative direction information without direction ambiguity; removing distortion information from the first relative direction information, to thereby acquire second relative direction information that is the first relative direction information without direction integrity; transforming the second relative direction information into absolute direction information, to thereby acquire a moving path direction of the terminal; and correcting the current position information of the terminal based on the moving path direction of the terminal.