炮口初速本质上是一个随机变量,需要射击一定数量的弹丸才能确定置信区间及置信度,连续波雷达作为测量初速的重要设备,其精度影响初速试验估计的用弹数量,文中对初速测量进行参数估计,计算初速置信区间及其置信度,并考虑雷达测速误差对初速估计的影响,讨论射弹数量与雷达精度的关系,以期选择最少的用弹量准确考核被试弹药性能,降低试验成本,提高试验效率。

Muzzle velocity is essentially a random variable measured in conventional weapon testing domain, confidence interval and confidence level of muzzle velocity are calculated by firing a quantity of projectiles, as main equipment, accuracy of continuous wave Doppler is an important factor influencing quantity of projectiles used in test range. Muzzle velocity was evaluated in this paper, confidence interval and confidence level were calculated, and error of measurement of the radar was evaluated for velocity accuracy, the relation between quantity of projectiles and radar measurement accuracy was discussed in order to cut down consumption of projectiles, and increase efficiency of firing accuracy measurement, the minimum projectiles were fired for evaluating ammunition.