高精度地磁场模拟系统的设计与研究

Design and Research of High-Accuracy Geomagnetic Field Intensity Simulation System

根据地磁导航半实物仿真中磁场环境仿真需求,建立了高精度地磁场模拟系统,通过试验说明了系统中建立零磁空间的必要性并验证了磁屏蔽筒的屏蔽效果,同时对系统的准确性和实时性进行了试验研究。仿真结果表明,在考虑响应时间的前提下,系统能够准确实时地模拟飞行航迹上的地磁总场值,能够为地磁匹配导航半实物仿真提供真实可信的磁场仿真环境。

Based on the requirement that high-accuracy geomagnetic field environment simulation are needed in the hardware-in-the-loop simulation of geomagnetic navigation,the system is established to simulate the geomagnetic field intensity. A lot of experiments have also been done. These experiments are associated with magnetic field free space,accuracy and real-time performance of the system. The results show that magnetic field free space is essential, a geomagnetic shielding canister can be used to shield geomagnetic field effectively,and the system can simulate the real-time geomagnetic field intensity of the flight path accurately. These experiments have proved that the system can provide an authentic geomagnetic field simulation environment for the hardware-in-the-loop simulation of geomagnetic navigation.