| 1. | At last , two kinds of method of estimating the impact point are investigated
研究了两种预报导弹落点的方法。 |
| 2. | Simplified mathematical model for impact point calculation of ground - to - ground ballistic missile
地地弹道导弹落点计算简化数学模型 |
| 3. | Simulation shows that the impact point precision is mainly dependant on the estimate precision of the burnout point ’ s velocity
仿真结果表明落点的估计精度主要取决于关机点的速度估计精度。 |
| 4. | The simulation result shows that the influence of the midcourse guidance based on the inertial navigation on the missile ' s impact point is remarkable
仿真结果表明，纯惯导中制导对洲际导弹落点精度影响比较大。 |
| 5. | One is that modern jet sims typically model a computer aided weapons delivery system , known as a ccip ( continuously computed impact point ) system
1 ：典型的现代喷气式飞机模拟（游戏）具有电脑半自动武器投放系统，像我们知道的ccip （可以连续计算着弹点）系统。 |
| 6. | Air force space command data show that when the kill vehicle impacted the target satellite , debris was ejected from the impact point at velocities of up to 1 , 400 mph . ( 2 , 000 fps . )
美国空军空间指挥中心的数据表明，当拦截器撞击目标卫星时，碎片会以每小时超过1400英里（每秒2000码）的速度从撞击点飞散出去。 |
| 7. | After analyzing the characteristic of ballistic trajectory in midcourse , we established spatial objects ’ kinetic model , and introduced a method for trajectory fitting and impact point estimation using a series of targets ’ plot detected by radar
2 .分析了弹道导弹中段飞行的特点,建立起导弹飞行的数学模型。推导出了根据一系列雷达测得的目标点迹数据拟合弹道并估计目标落点的方法。 |
| 8. | The missile ’ s lunch point parameters and burnout point parameters are estimated using boost phase state estimation , and the impact point is predicted according to ellipse trajectory theory . and the effect of the estimation error of the burnout point on the impact estimate precision is analyzed
应用主动段的状态估计值估计了导弹发射点参数和关机点参数,根据椭圆弹道理论进行了落点预报,并分析了关机点参数估计误差对落点估计精度的影响。 |
| 9. | It can bring errors on the impact point . sometimes the errors can reach hundreds of meters or even more . so in order to insure the precision of the missile , the disturbing gravitation is must be take into account when we calculating the ballistic trajectories
作用在远程导弹弹道上的扰动引力对导弹落点偏差的影响是不可忽略，它对导弹落点偏差的影响可达数百甚至千米数量级，所以要保证导弹的命中精度就必须在弹道计算中考虑扰动引力的影响。 |
| 10. | Then , we use a simulation method to create a large number of radar measurement values , produce a quantity of random numbers using computer software and add them to the radar measurement values , we use kallman filtering method to calculate the location , velocity and trajectory coefficient of the target at the moment of the final tracking point , and use the numerical solving method of differential equation to calculate the trajectory , the location of the hostile artillery or the impact point of its own projectiles , finally , we calculate statistically the random error of the tracking system and analyze the location accuracy
然后采用模拟仿真方法获得大量的雷达测量值，由计算机软件产生大量的随机数，加入雷达测量值中，用卡尔曼滤波法计算出最后跟踪点时刻的目标位置、速度和弹道系数，再用微分方程数值解法计算出整个弹道轨迹、计算出敌方炮位的位置或己方炮弹的落点，最后统计出跟踪系统的随机误差，分析定位精度。 |
