Correction of Errors at Large-angle Area for Six-stance Magnetic Position and Orientation Tracking System

In order to solve the problem that the parameters for the target had great errors when the target of the six-stance magnetic position and orientation tracking system was in large-angle area(the pitching angel close to ±90°), a calibration method of tracking-iteration was provided based on the analysis of the errors. The benefit of the method is that the calibration for the errors is effective and the delay-time is short. Correctness and feasibility of the method have been established through computer modeling and experimentation.