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《Electronics Optics & Control》 2008-12
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A fast 3-D flight-path generation method in aircraft low-altitude penetration

ZHANG Chong1,2,ZHU Fan1,ZHANG Jian1,ZHANG Hong-lin1 (1.Engineering College,Air Force Engineering University,Xi'an 710038,China;2.No.95616 Unit of PLA,Qionglai 611531,China)  
A 3-D flight-path generation method is introduced for air vehicle in low-altitude penetration.By analyzing variance of the terrain of enemy air-defense area and analyzing the characteristics of the terrain,the optimum safe altitude of the vehicle to ground is obtained,and the safe flight surface is constructed.Through planar node search on the safe flight surface using improved Dijkstra algorithm,the effect of the 3-D flight-path planning is achieved successfully.The search space dimension is reduced,the neighbor nodes of the current flight-path point in storage are decreased,both of which contribute to quickening of the flight-path planning.The establishment of the threat probability model,the construction of the flight-path cost function,the selection of the flight-path weight,all make the flight-path have the effect of TA2/TF(Threat /Terrain Avoidance and Terrain Following).An example and the simulation result are presented.
【CateGory Index】: V249.1
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