Magnetic field quality evaluation method for electromagnetic positioning and tracking and frequency hopping control strategy

The invention relates to the technical field of electromagnetic positioning and tracking, in particular to a magnetic field quality evaluation method for electromagnetic positioning and tracking and a frequency hopping control strategy. According to the magnetic field quality evaluation method provided by the invention, the magnetic field quality of the frequency-division control or time-division control electromagnetic positioning and tracking system can be effectively evaluated, and the method has an important value for optimizing the positioning and tracking precision of the system and evaluating the effectiveness of a positioning result; a magnetic field frequency hopping control strategy provided by the method can effectively avoid the situation that the magnetic field frequency of an electromagnetic positioning and tracking system is close to the interference magnetic field frequency existing in the environment, and the influence of the interference magnetic field existing in the environment on the posi