Apparatus and method for correcting inertial sensor and recording medium recording the method

A computer-readable recording medium that records a program implementing a method of correcting an inertial sensor, the method comprising:

• measuring an angular velocity and an acceleration of a moving object;
• extracting zero-angular-velocity time instances at which the measured angular velocity is “0”;
• calculating motion velocity from the measured acceleration;
• and
• correcting the calculated motion velocity for each interval between the zero-angular-velocity time instances.

An apparatus for correcting an inertial sensor, the apparatus comprising:

• an inertial sensor module which measures angular velocity and acceleration of a moving object;
• a storage module which stores predetermined operation information and parameters required to correct the measured acceleration;
• and
• a control module which calculates motion velocity from the measured acceleration using the operation information and the parameters, and corrects the calculated motion velocity for each interval between zero-angular-velocity time instances at which the measured angular velocity is “0”.

A method of calculating a motion trajectory of a moving object, comprising:

• measuring an angular velocity and an acceleration of the moving object with an inertial sensor;
• extracting zero-angular-velocity time instances at which the angular velocity of the moving object is “0”;
• calculating a motion velocity of the moving object based on the acceleration of the moving object;
• correcting the motion velocity of the moving object for each time interval between the zero-angular-velocity time instances;
• calculating the motion trajectory of the moving object using the corrected motion velocity.