CAJ | 학술논문

提出了适用于强测量噪声情况下的三轴磁力计正交及增益误差建模及校正方法，详细推导了磁力计测量误差模型，给出了误差参量辨识及校正算法，仿真证明了在强噪声情况下算法仍具有良好的收敛性，给出了不同信噪比条件下误差校正精度与采样点个数的关系，证实了算法能应用在磁力计测量噪声较强场合，并将其实现地磁场强度测量实验，获得了令人满意的结果。
제출료괄용우강측량조성정황하적삼축자력계정교급증익오차건모급교정방법，상세추도료자력계측량오차모형，급출료오차삼량변식급교정산법，방진증명료재강조성정황하산법잉구유량호적수렴성，급출료불동신조비조건하오차교정정도여채양점개수적관계，증실료산법능응용재자력계측량조성교강장합，병장기실현지자장강도측량실험，획득료령인만의적결과。
T he errors of tri-axial magnetometer such as non-orthogonality and different sensitivi-ties among three axes were the main factors that would degrade the accuracy of underwater positio-ning ,so it was necessary to correct the errors and compensate the magnetic field measured by the im-perfect magnetometer .An error-modeling and correction method for tri-axial magnetometer in strong noise environment was proposed .The error model of magnetometer was deduced in detail ,and then the error parameters identification and error correction algorithm were also given .The simulations proved the convergence of the algorithm when the noise in the output of magnetometer was strong . The relation between correction precision and sampling number was given for different signal noise ra-tio to verify that the method was fit for tri-axial magnetometer with strong noise .This method was used in geomagnetic field measurement experiment and got a satisfactory result .