Patent ID: 9628961
Date: 2017-04-18
CPC Classifications: H04B,H04W

Claim:
1. A wireless positioning terminal including a wireless receiver to receive, as a plurality of reception signals, signals wirelessly from at least one wireless transmitter via a plurality of different communication links that are mutually different from each other, the wireless positioning terminal comprising: a reception information determiner to successively determine a multi-link-base reception informational item by evaluating the plurality of reception signals respectively corresponding to the different communication links, the multi-link-base reception informational item having a value varying with a position of the wireless positioning terminal, the multi-link-base reception informational item varying with a position of the wireless positioning terminal differently from an informational item of a reception signal received by the wireless receiver via one of the different communication links; a base memory to store a base trajectory that represents correspondence relation about a plurality of points between (i) a position of the wireless positioning terminal and (ii) the multi-link-base reception informational item; a position variation calculator to successively calculate a position variation in the wireless positioning terminal; a trajectory generator to generate a measured trajectory that represents correspondence relation about a plurality of points between (i) the position variation calculated by the position variation calculator and (ii) the multi-link-base reception informational item determined by the reception information determiner; and a position estimator to estimate, as a current position of the wireless positioning terminal, a current point on the measured trajectory that is moved based on matching between the base trajectory stored in the base memory and the measured trajectory generated by the trajectory generator.