高原环境下电子时间引信炸点控制修正方法

Correction Method of Burst Control of Electronic Time Fuze in Plateau Environment

针对海拔高度变化对电子时间引信炸点精度有重要影响的问题,提出了一种电子时间引信作用时间对高原环境的自适应修正方法。该方法利用引信作用时间改变量随海拔高度的变化关系,得出不同射程时的海拔修正系数,进而修正引信的装定时间。以80 mm火箭弹为例,仿真实验表明,在利用该文修正方法修正后,不同海拔处的引信炸点位置精度在全射程范围内均小于2 m;而不修正时,在海拔高度为4 750 m,打击400 m目标时,引信炸点误差可达22 m。该研究结果对平原射表的高原应用有很重要的意义,使电子时间引信在高原的炸点精度得到提高。

The altitude change has an important influence on burst-point accuracy of electronic time fuze （ETF）. Aiming at this problem an adaptive correction method of action time of ETF to the plateau environment was presented. In the method, the altitude correction coefficient at different ranges was obtained by using the relation of action-time change varying with altitude, and the fuze setting-time was corrected. Taking 80 mm rockets for instance,the simulation was carried out. The results show that the burst-point positional-accuracy of fuze at different altitudes in the whole range is less than 2 m by using correction methods;while not applying the correction methods,the burst-point error of fuze of rocket hitting 400 mrange targets reaches to 22 m at altitude of 4 750 m. The result is of great significance for plain-firing-table being applied in the plateau, and the accuracy of ETF burst-point in the plateau improves.