| 摘要 |
PROBLEM TO BE SOLVED: To obtain location information by autonomous navigation positioning while suppressing an increase in processing amount.SOLUTION: A mobile terminal device 1 is provided with a processor 11, an acceleration sensor 13 for detecting acceleration of the mobile terminal device 1, and a gyro sensor 14 for detecting a moving direction of the mobile terminal device 1. The processor 11 determines a movement mode of the mobile terminal device 1 on the basis of the acceleration sensor 13 and sensor data by the gyro sensor 14. Also, the processor 11 measures location information on the basis of a positioning parameter in accordance with the movement mode of the mobile terminal device 1 and the sensor data. In using a particle filter, a fluctuation width and increment width of a plurality of positioning parameters for obtaining a plurality of samples differ depending on a movement mode. |
