初速跳动量对单兵火箭弹引信定距精度影响

Effect of Initial Velocity Fluctuation of Fuze Distance Precision of a Shoulder-fired Rocket

针对单兵火箭弹初速跳动引起弹丸炸点散布较大的问题,分析了初速跳动量对未测速修正引信和测速修正引信在不同射程上定距精度的影响。MATLAB仿真结果和实弹空炸试验均表明初速跳动量对未测速修正引信炸点精度影响较大,对测速修正引信的炸点精度影响较小。对于未测速修正引信,尤其在射距较大的情况下应尽可能减小初速的跳动量;对于测速修正引信,可大大降低对初速跳动量的控制要求,而炸点精度仍可达到较高指标。

Aiming at the the large dispersion of burst point of an individual rocket that is caused by the initial velocity fluctuation,the effect of different initial velocity fluctuation to the distance distance of time fuze with and without velocimetry correction was analyzed in this paper.Both the simulation results of MATLAB software and the results of air-burst tests of the live ammunition showed the effect of different initial velocity fluctuation to the distance distance of time fuze with velocimetry correction was heavy,while to the distance distance of time fuze without velocimetry correction is light.The fuze without velocimetry correction should reduce the initial ve-locity fluctuation as much as possible,especially for the targets of long distance;the fuze with velocimetry cor-rection could greatly reduce the control requirements,the burst point precision still can achieve high index.