| 摘要 |
<p>A locating system is arranged to determine the relative position of two bodies and their relative orientation. Directional radiation sources (54) transmit towards each respective body (51) and (52). Light from the source (54) on the body (51) is detected at the body (52) by a (non-directional) detector (53) to give angle B. Light from source (52) is detected by the non-directional detector (53) on the body (51) to give the angle A. Information relating to the angle B is then transmitted to the body (51) using the source (54) as a transmitter and the detector (53) as a receiver. The mean plane of each of the directional sources (54) on the bodies is known and thus a summation of angle A and B provides a measure of the orientation of the body (52) relative to an axis at the body (53).</p> |
