| 摘要 |
<p>A system is provided which will transmit information concerning a target viewed by an observer (AC1) to a user system (AC2) possibly a second observer. The orientation of a sight-line from the observer to the target is determined relative to a first set of axes by angle-determining means (HMS1), and the position and attitude of the observer relative to a second set of axes is determined by first position-determining means (IRS1). Communication means (TX, RX) are provided to pass the angle, position and attitude information to the user system (AC2). The position and orientation of the user system relative to the second set of axes is determined by second position-determining means (IRS2). A data processor (DP) uses the information received from the communication means (TX, RX) and from the second position-determining means to determine the orientation of the target relative to the user system.</p> |
