An online magnetic compensation method for carriers based on vector measurement
LING Jie-Ya1(), JIN Huang-Huang2, ZHUANG Zhi-Hong1, WANG Hong-Bo1, DONG Sheng-Ya1
1. School of Eloctronic Engineering and Optoelectronic Technology, Nanjing University of Science and Technology, Nanjing 210094, China 2. Huangshan University, Huangshan 245041, China
Aiming at the ill-conditioned coefficients in the traditional carrier magnetic compensation, this study investigated the main source of magnetic interference, simplified the original model by ignoring the influence of the eddy current field, and established a three-component magnetic compensation model. Accordingly, it proposed an online carrier magnetic compensation method for the magnetic field components. Compared with the traditional method, the method proposed in this study effectively improved the compensation accuracy by about 1.14 nT. This study conducted embedded hardware simulations of this method using the high-level synthesis (HLS) tool of the field programmable gate array (FPGA), verifying the real-time performance and magnetic compensation accuracy of this method in a hardware system.
凌姐丫, 金煌煌, 庄志洪, 王宏波, 董笙雅. 基于矢量测量的在线载体磁补偿方法[J]. 物探与化探, 2023, 47(2): 401-409.
LING Jie-Ya, JIN Huang-Huang, ZHUANG Zhi-Hong, WANG Hong-Bo, DONG Sheng-Ya. An online magnetic compensation method for carriers based on vector measurement. Geophysical and Geochemical Exploration, 2023, 47(2): 401-409.
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