Scene-based beam generation method for ground-to-air coverage based on convex polygon subdivision

A scene-based beam generation method for ground-to-air coverage based on convex polygon subdivision, comprising:

• obtaining a collection of position information of ground base stations in a scene;
• constructing a three-dimensional (3D) low altitude signal coverage area according to the position information of the ground base stations;
• performing convex polygon subdivision on the 3D low altitude signal coverage area to obtain a plurality of n-prism areas, taking the ground base stations on a bottom surface of each of the plurality of n-prism areas as vertexes to build quadrangular pyramid models to cover corresponding the n-prism area, and obtaining corresponding relationships between geometric parameters of each of the quadrangular pyramid models and beam parameters of a corresponding ground base station sector;
• and
• optimizing a coverage upper limit and a coverage lower limit of each the ground base station sector in each of the plurality of n-prism areas by using a particle swarm optimization (PSO) algorithm with adaptive weight to obtain optimized results, and obtaining a beam configuration range of each of the ground base stations according to the optimized results.