Method for reducing off-axis angle of NGSO system terminal

• Main Authors: JIANG XINGLONG, XIA SHIYI, LI GUOTONG, ZOU CHENG, SHANG LIN, JIANG QUANJIANG
• Format: Patent
• Language: Chinese; English
• Published: 17.11.2020
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION; WIRELESS COMMUNICATIONS NETWORKS

The invention discloses a method for reducing an off-axis angle of an NGSO system terminal, and the method reduces the maximum off-axis angle of the terminal in a progressive inclination process through closing a wave beam. Firstly, the maximum pitch angle of a satellite at the edge of a wave beam is determined, the maximum offset angle is determined according to the maximum pitch angle, then thenumber of wave beams needing to be closed is calculated according to the maximum offset angle, offset requirements and parameters of strip wave beams, and loads are designed to meet the requirements. 本发明公开一种减小NGSO系统终端离轴角的方法，通过关闭波束，来减小渐进倾斜过程中的最大终端离轴角。首先，确定卫星在波束边沿的最大俯仰角，并根据最大俯仰角确定最大偏置角，进而根据最大偏置角和偏置需求，以及条带波束的参数，计算需要关闭的波束数量，并设计载荷以满足需求。