Changes

5DOF (five-degree-of-freedom) electromagnetic trackers track a single dipole coil receiver against a spread-out array of transmitter coils. Because the single coil is symmetrical about its axis, orientation roll about the single coil's axis cannot be tracked. Orientation latitude and longitude can be tracked, as can X Y Z position.

'''A 5DOF (five-degree-of-freedom) electromagnetic tracker''' tracks a single dipole coil receiver against a spread-out array of transmitter coils. The single coil is symmetrical about its axis, so orientation roll about the single coil's axis cannot be tracked. Orientation latitude and longitude can be tracked, as can X Y Z position.

The single receiver coil does not need to be characterized, as long as the coil is small enough to be a dipole, as the coil's gain is tracked as part of the position-and-orientation algorithm.

The single receiver coil does not need to be characterized, as long as the coil is small enough to be a dipole, as the coil's gain is tracked as part of the position-and-orientation algorithm.