Abstract: A new method for determining an attitude of a sensor with respect to a moving body is proposed. A movement vector is measured by a sensor mounted in the moving body. In addition, the attitude of the sensor with respect to the moving body is determined using the movement vector measured by the sensor when the moving body starts to move.

Abstract: In a position calculating device, a first operational process of calculating at least a position of a moving object using the measurement result of an inertial positioning unit disposed in the moving object is performed by a first operation processing unit. A second operational process of calculating the position of the moving object using the result of the first operational process and the measurement result of a satellite positioning unit disposed in the moving object is performed by a second operation processing unit. An operational coefficient of the first operational process is adjusted using the result of the first operational process and the result of the second operational process by an operational coefficient adjusting unit.

Abstract: To suggest a technique of more accurately calculating a position using both measurement results of a satellite positioning unit and an inertial positioning unit. In a position calculating device (1), a first operational process of calculating at least a position of a moving object using the measurement result of an inertial positioning unit (2) disposed in the moving object is performed by a first operation processing unit (5). A second operational process of calculating the position of the moving object using the result of the first operational process and the measurement result of a satellite positioning unit (3) disposed in the moving object is performed by a second operation processing unit (7). An operational coefficient of the first operational process is adjusted using the result of the first operational process and the result of the second operational process by an operational coefficient adjusting unit (9).

Abstract: A new method for determining an attitude of a sensor with respect to a moving body is proposed. A movement vector is measured by a sensor mounted in the moving body. In addition, the attitude of the sensor with respect to the moving body is determined using the movement vector measured by the sensor when the moving body starts to move.

Abstract: A position calculation method and apparatus are described. The position calculation apparatus may include an inertial measurement unit and be configured to be coupled with at least one sensor unit for detecting a physical event for use in position calculation. The presence of and type sensor unit may identified, and the position processing to be undertaken may depend on this identification.

Abstract: A position calculation method and apparatus are described. The position calculation apparatus may include an inertial measurement unit and be configured to be coupled with at least one sensor unit for detecting a physical event for use in position calculation. The presence of and type sensor unit may identified, and the position processing to be undertaken may depend on this identification.

Abstract: A positioning method adapted to perform interactive mixing model calculation (IMM calculation) for combining outputs of a plurality of Kalman filter processes while applying weighting of given model probabilities to the outputs in a positioning apparatus, includes the steps of (a) calculating a first likelihood index value of a first Kalman filter process, (b) calculating a second likelihood index value of a second Kalman filter process, (c) calculating a relative value of the first and second likelihood index values, (d) calculating a first model probability corresponding to the first Kalman filter process and a second model probability corresponding to the second Kalman filter process using the relative value, and (e) combining outputs of the first and second Kalman filter processes using the first and second model probabilities to execute the positioning.