A Research On The Path Planning And Display Of Military Aircraft

Path planning plays a more and more important role in the moments that the aircraft was carrying out the mission in the third dimension, which is proved by the wars happened in recent years. Flight path which is designed can adequately exert the flying capability, improve penetration and survive ability of aircraft to achieve a higher effectiveness.On the basis of hierarchical flight path planning, This thesis established corresponding threat model according to the known threat information during the period to carry out referenced path planning. The computed paths are able to take into account mission constraints and flight performance constraints. To resolve the problem of conflict between global optimization and information processing in the algorithm of referenced path planning, this thesis develops an adaptive genetic algorithm to the referenced path planning. In the algorithm the chromosome is constructed by a sequence of flight control command, on the basis of which the crossover operator and mutate operator are designed. In the process of evolution adaptive crossover probability and mutate probability are developed. The result of emulation demonstrates that the proposed method reduces the memory and processing of information and improves the global optimization ability of genetic algorithm. The proposed method can provide penetration vehicle with referenced flight path satisfying tactics requirement.Based on path planning, this thesis developed 2-Dimensional display system of flight path on the basis of general develop framework, Threat source was plotted on the digital map in the shape of military grade. Client received real-time points and attribute data of aircraft from server and flight path was displayed on the electronic map. Client also can plot flight path manual, query flight path, replay flight path and so on.Due to the shortcoming that electronic map can't show directviewing and minute flight path. This thesis built 3-Dimensional scene based on stimulant terrain and add in a light.Lastly aircraft fighting along the planned path was displayed in the stimulant terrain vividly.