Application of PSO Algorithm and Surface with Minimum Threat in Path Planning of Aircraft
HU Xun-qiang, Jie Liang, Xiaofang Xie, Jian Cao, Yan Tai · 2012
D flight path is projected on a 2D plane based on surface with minimum threat. So path planning of aircraft is mapped from 3D space to 2D plane. With Taylor expansion a polynomial function with finite items is used to approximate the horizon projection of flight path. So the original planning problem is simplified to search the best series of values in the coefficient space of the polynomial function. Threat model and cost model of path are constructed and PSO algorithm is applied to search optimal path. Flow of optimization is introduced and validated with simulation. Results of simulation show that PSO algorithm and surface with minimum threat can effectively solve global optimization of flight path of aircraft.