关键词: 弹道修正, 射程扩展量, 可靠性

Abstract: To improve the concentration of projectiles, the range is corrected by drag brake for one dimensional trajectory correction projectile. The firing collimation angle is calculated with the firing distance and the extended range, and it is very important to select the optimal extended range so as to improve the concentration of projectiles. The model of calculating the extended range is set up. The viewpoint is brought forward that the extended range should be amended with the modulus when the reliability declines, and the model is simulated with the Monte-Carlo method, and the rule is founded between the maximum average shell hits and the three factors, the target depth, the reliability, and the correction modulus. The production is reference to calculate the firing collimation angle for one dimensional trajectory correction projectile.

Key words: trajectory correction, extended range, reliability