| 摘要 |
PROBLEM TO BE SOLVED: To provide a radio positioning terminal capable of estimating a current position with high accuracy and reliability in a short time.SOLUTION: A radio positioning terminal 40 comprises: a reception information determination unit (S256) that sequentially determining multiple pieces of reception information which evaluates a signal received from a base station 20 through multiple types of communication paths by a radio communication device 41, in which a value varies by the position of the radio positioning terminal, and which is different in a variation tendency from information on a signal received through one communication path by the radio communication device 41; a memory 45 that stores a reference locus setting correspondence relation between the multiple pieces of reception information and the position of the radio positioning terminal 40; a position change amount calculation unit (S254) that sequentially calculates the amount of positional change of the radio positioning terminal 40; a locus generation unit (S257) that generates a plurality of probe loci setting correspondence relation between the multiple pieces of reception information and the amount of positional change; and a position estimation unit (S260 and S261) that estimates the current position on the basis of a matching position of the reference locus and the plurality of probe loci.SELECTED DRAWING: Figure 12 |
