Patent ID: 6396608
Filing Date: 2002-05-28
Classification: G01S,H04B

Abstract:
A method for calibrating the deviation of a received beam in a terminal from its desired position, comprising the steps of:receiving at a receiving sensor on said terminal a received beam emitted by a partner terminal, receiving an acquisition beam emitted by the partner terminal at an acquisition sensor of the terminal, whose acquisition sensor detection range is greater than the detection range of the receiving sensor, transmitting a beam emitted from the terminal to the partner terminal wherein said transmitted beam is conducted as an incident beam to a partial reflecting surface, wherein a portion of said incident beam is reflected as an outgoing transmitted beam at the partial reflecting surface, further wherein a remaining portion of said incident transmitted beam is conducted through said partial reflecting surface to the acquisition sensor and to the receiving sensor, and measurements are performed at least approximately isochronously at the acquisition sensor and the receiving sensor of how the conducted through portion of said incident transmitted beam respectively compares with the received beam and the acquisition beam for determining the deviation of the received beam from its desired position.