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In the magnetic ranging for Steam-Assisted Gravity Drainage (SAGD) system, the Kalman filtering is proposed to increase the accuracy of the measured range and azimuth, which overcomes the problem that the magnetic field is easy to be interfered and attenuated by the tube in the well. The Kalman filtering can be applied within the process of drilling, and the accuracy is increased at least one order...
Currently, in the hangar, aircrafts rely on the visual observation and manual driving of the pilots to control the overrun during taxiing. The manual control has a high possibility to bring the accident, e.g., crashing while the taxiing within the aircraft carrier. Moreover, the conventional satellite positioning system such as GPS can not be utilized due to the shelter from the satellite. In this...
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