摘要
针对现代炮弹引信高精度修正技术要求,研究初始条件误差对弹丸落点的影响.提出一种比较辨识弹丸落点及精度的方法,通过建立弹道数学模型,利用龙格-库塔法实时快速的解算理论弹道,分析了弹道散布及其影响弹道散布的因素.用初速、弹道系数、射角参数对弹道散布影响进行仿真,仿真结果表明:积分步长h=0.05 s时,获得的理论弹道与《43年阻力地炮弹道表》射程相比,距离射程误差仅为0.7%.
For the requirement of the technique of high accuracy correction fuze in modern artillery, the effect of the initial condition error on the bullet falling point is studied. A new method, which implements comparison and identification of bomb falling point and its accuracy, is proposed. Firstly, based on the establishment of mathematical model, the method of Runge- Kutta is used to solve the theoretical trajectory in real-time. The projectile dispersion and the factors that affect the spread of projectile are analyzed. The impacts of muzzle velocity, ballistic coefficient and fire angle on the ballistic dispersion are simulated respectively. When the integral step is 0. 05 s, compared with the 《43-years Resistance to Artillery Shells Road Table》, the error of range of the theoretical trajectory is 0. 7%.
出处
《西安工业大学学报》
CAS
2009年第3期209-213,共5页
Journal of Xi’an Technological University
关键词
四阶龙格-库塔法
弹道方程
精度分析
参数估计
four- order Runge-Kutta
trajectory equation
accuracy analysis
parameter estimation
