Yang Gongliu

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In order to restrain the velocity error and improve the navigation precision of dual-axis rotation-modulating INS, the effect of calibration error during one modulated period is analyzed and the `observable' of the calibration error by the sawtooth type velocity are pointed out. A self-calibration method for dual-axis rotation-modulating INS is brought out,(More)
Determination of time interval when gravity compensation implements in inertial navigation system (INS) will improve the efficiency of compensation theory and avoid overshoot of navigation results. As an error corresponding to position, gravity disturbance propagation in INS is associated with regional gravity field, velocity and altitude of vehicle. In(More)
Because of the limitations of the inertial navigation system, high accuracy navigation is a challenge for planes in the Arctic. One of the biggest problems is the initial alignment. Against the special conditions (high latitude and longitude astringe etc.) in the Arctic, new inertial navigation system mechanization equations are established, and a novel(More)
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