The invention, which relates to the technical field of positioning and orientation, provides a feature-vector-based rapid magnetic
beacon orientation method and
system. The method comprises: setting frequencies, amplitudes and phases of two paths of signals generated by a
signal source and inputting the signals into a magnetic
beacon generation space
magnetic field; identifying a to-be-measured
magnetic field signal; collecting
magnetic field signals continuously and filtering the signals by using a bandpass filter to obtain magnetic field vector data of the two paths of signals; carrying outdenoising
processing on the magnetic field vector data; carrying out multiplication crossing
processing on the denoised magnetic field vector data to obtain feature vectors; carrying out spatial
linear fitting on the feature vectors to obtain an optimal
feature vector; and carrying out calculation based on the optimal
feature vector to obtain a relative
azimuth and a relative
elevation angle of the relative magnetic
beacon. According to the invention, the identification precision of the
feature vector is improved by using the spatial
linear fitting technique; and while the orientation accuracyis ensured, the real-time performance of the relative orientation calculation of the
system is significantly improved.