Fast calculation method of aviation bomb trajectory adapted to plateau environment
In order to solve the trajectory of aviation bombs in the plateau environment fast and accurately,based on the traditional trajectory model,an method based on improved Runge-Kutta based uncontrolled bombs trajectory calculation(IRK-UBTC)is proposed.Firstly,an estimation method of the air specific gravity function based on the take-off point is proposed considering the changing environmental parameters during the bomb's falling process.Then,the temperature,humidity,latitude,Colorili force and other information of the fighter's environment are introduced to the system of the traditional differential equations of the bomb's center motion.Finally,based on the third-order Runge-Kutta algorithm,a real-time solution method for differential equations with error control mechanism is proposed.Experiment results show that the calculation period of the proposed method is less than 5 ms in an embedded computer with a main frequency of 1.4 GHz,and the maximum result error is less than 0.2％,which can be applied to real-time calculation of bomb trajectory in plateau areas effectively.
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