Optimal Design of a New Rotating Magnetic Beacon Structure Based on Halbach Array

At present, the magnetic signals generated by common artificial beacons change periodically with sinusoidal law, and there is a multi-value problem in measuring target orientation using phase information of signals. According to characteristics Halbach array, kind beacon based on array studied. This has signal aggregation, which can avoid facilitate extraction information. Firstly, model established MATLAB, magnetization direction each permanent magnet adjusted, particle swarm optimization used find structural parameters strongest field characteristics. Finally, COMSOL physical simulation software verify usability proposed structure.