Ku-band PTM microwave antenna alignment method and communication system

The invention belongs to the technical field of microwave communication, and relates to a Ku-band PTM microwave antenna alignment method and a communication system. The communication system comprises a master station and a plurality of slave stations, FDD and TDMA communication modes are adopted, and the antenna alignment method comprises the steps that in the coarse alignment stage, the slave stations conduct fast horizontal 360-degree scanning at first, and the maximum level position in the horizontal direction is determined and recorded; and carrying out pitching direction scanning at the maximum level horizontal position and recording the maximum level position in the pitching direction. In the fine alignment stage, each slave station firstly controls the local antenna to rotate to the horizontal and vertical maximum level position in the coarse alignment stage, then performs horizontal scanning at a low speed, and determines and records the maximum level position in the scanning; carrying out low-speed p