SENSOR ERROR CALCULATION DEVICE, ATTITUDE ANGLE CALCULATION DEVICE, SENSOR ERROR CALCULATION METHOD, AND ATTITUDE ANGLE CALCULATION METHOD

摘要

[Problem] To calculate an error of a magnetic sensor precisely and quickly.[Solution] A sensor error calculation device 1 is provided with: a GNSS attitude angle calculation unit 20, a GNSS geomagnetism calculation unit 301, and an error estimation unit 302. The GNSS attitude angle calculation unit 20 calculates a GNSS attitude angle from a GNSS positioning signal. The GNSS geomagnetic calculation unit 301 calculates a GNSS geomagnetism from the GNSS attitude angle. The error estimation unit 302 estimates a sensitivity error, a misalignment error, and a bias error of a magnetic sensor by using a magnetic detection value by the magnetic sensor and the GNSS geomagnetism.