CAJ | 학술논문

在地磁导航中磁传感器会受到载体自身磁场的影响，为了提高磁场测量精度，需要对观测数据的载体磁场干扰进行精确补偿。在分析载体固有磁场和感应磁场数学模型的基础上，根据椭圆假设磁补偿方法的思路，提出了一种载体三维磁场干扰的补偿方法，并在椭球假设的基础上提出了载体磁场干扰补偿参数求解方法。该方法将载体磁场干扰补偿方法从二维拓展到三维，解除了载体二维运动姿态的限制。实验验证表明：该方法可以有效实现载体自身三维磁场干扰的补偿，从而提高地磁场的测量精度。
재지자도항중자전감기회수도재체자신자장적영향，위료제고자장측량정도，수요대관측수거적재체자장간우진행정학보상。재분석재체고유자장화감응자장수학모형적기출상，근거타원가설자보상방법적사로，제출료일충재체삼유자장간우적보상방법，병재타구가설적기출상제출료재체자장간우보상삼수구해방법。해방법장재체자장간우보상방법종이유탁전도삼유，해제료재체이유운동자태적한제。실험험증표명：해방법가이유효실현재체자신삼유자장간우적보상，종이제고지자장적측량정도。
It is an unavoidable fact that the geomagnetic field measurement is disturbed by the magnetic field of the vehicle in geomagnetic navigation. In order to improve the measurement accuracy of the geomagnetic field, the vehi-cle's magnetic field disturbance of the observation data must be precisely compensated. Based on the induced and connatural magnetic field model of the vehicle and the compensation method under the assumed ellipse fitting, a new 3-D magnetic interference compensation method was proposed. And the calculation of the compensation param-eters was put forward based on the ellipsoid hypothesis. The proposed method improves the magnetic interference compensation from the 2-D ellipse fitting to the 3-D ellipsoid fitting, and relieves the restriction on the 2-D motion of the vehicles. Finally, the experimental results show that the proposed method can compensate for the 3-D mag-netic interference of the vehicle efficiently and improve the measurement accuracy of the geomagnetic field.