| 摘要 |
A communication system and method for vehicles (10, C1, C2), particularly trains, are described with the vehicle (10, C1, C2) having antenna sets (A1, A2) each comprising a plurality of antennas (A11, A12 and A21, A22) mounted onto a convex-shaped vehicle roof (101), wherein an axis of antenna set (A1) is approximately perpendicular to an axis of antenna set (A2), and wherein the antenna sets (A1, A2) are mounted below roof level of the convex-shaped vehicle roof (101); a switching device (20) operable to switch between a first antenna configuration (MODE 1) and a second antenna configuration (MODE 2), based on a measure of difference in signal power (P1, P2) received at the antenna sets (A1, A2); and wherein the first antenna configuration (MODE 1) is associated with a first stationary communication system (11A) of the plurality of stationary communication systems and a second antenna configuration (MODE 2) is associated with a second stationary communication system (11C) of the plurality of stationary communication systems. |
