| 摘要 |
<p>OBJECT TRACKING AND ORIENTATION DETERMINATION MEANS, SYSTEM AND PROCESS A field (e.g., a magnetic field) which nutates about a pointing vector is used to both track or locate an object in addition to determining the relative orientation of this object. Apparatus for generating such a field includes mutually orthogonal coils and circuitry for supplying an unmodulated carrier, hereafter called DC signal, to one coil and an AC modulated carrier signal, hereafter called AC signal, to at least one (usually two) other coil, such that the maximum intensity vector of a magnetic field produced by the currents in the coils nutates about a means axis called the pointing vector direction of the field. The generated field is sensed in at least two orthogonal directions at the object to be tracked and whose orientation is to be determined. The sensed signals provide an indication of the direction and orientation of the object relative to the coordinates of the generating means.</p> |
