| 摘要 |
A method of pointing a fixed antenna (2) having a reflector (10) and at least one transceiver source suitable for aiming at a plurality of satellites situated between two extreme positions S1, S2 on a geostationary orbit (8). According to the invention, the transceiver source is offset on the focal line (6) of the antenna (2) through a distance d from the middle of the focal line (6) so as to aim at one of the extreme positions S1, S2, the distance d being determined as a function of an angle alpha formed between a first line connecting the origin O of the focal axis of the reflector (10) to the target extreme position and a second line connecting the origin O to the middle position SM of the geostationary orbit, the reflector (10) is turned through the angle alpha about an axis D perpendicular to the plane containing the focal line (6) and the origin O of the focal axis, and then the roll angle is adjusted by turning the antenna (2) about its own axis pointing to the satellite situated at the target extreme position, so as to aim at the other extreme position and bring the focal line (6) into alignment with the set of satellites situated between the positions S1, and S2. |
