Research on Attitude Determination Using Magnetometers and MEMS Inertial Sensors

For correcting the trajectory correctable munition,it is necessary to acquire the real time angular rate and the attitude of the rocket body.A low cost scheme of the full attitude detection system composed of magnetometers and MEMS gyroscope was proposed.An algorithm used for solving the attitude with geomagnetism measurement,gyro measurement and prior trajectory information was given.A principle prototype was design and fabricated,the filter was tested by the prototype and the single-axis turntable.The tested results show that the scheme has high precision,better stability and applied potential.