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针对大口径机枪双头弹的运动特点 ,提出了一种采用多普勒测速雷达实现两目标测速的实验方法 ,进行了多普勒测速实验 ,获得了双头弹 1 0 0m内全弹道速度 -时间关系曲线。并计算出了双头弹两个弹头的初速和此弹道段的阻力系数 ,据此进行了飞行特性分析。实验结果证明 ,大口径机枪双头弹两个弹头的飞行是稳定的 ,且两者之间存在相对比较固定的速度差。该测试结果为其弹道分析提供了可靠依据
Aiming at the movement characteristics of the large-caliber machine gun double-headed projectile, a test method using Doppler velocimetry radar to achieve two-target velocimetry is proposed. The Doppler velocimetry experiment is carried out and the full ballistic velocity- Time curve. The initial velocities of the two projectiles and the drag coefficient of the trajectory are calculated, and the flight characteristics are analyzed. Experimental results show that the flight of a large caliber machine gun double-headed projectile with two warheads is stable and there is a relatively fixed speed difference between the two. The test results provide a reliable basis for its ballistic analysis