| 摘要 |
<p>@ A microwave landing system (Figure 1) incorporates a set of antennas (Figure 2) for the sequential transmission of guidance signals through a sequence of directions (Figures 3-6, 9, 10) to enable the reception and decoding of the signals by an airborne receiver. Circuitry (Figures 7, 8) is included for the retransmission of a frame of the signals by a procedure wherein the directions of transmission is altered so as to increase the guidance sector over which the receiver is effective (Figures 11-13).</p> |
