针对引信技术关注的火炮外弹道起始段弹丸章动规律问题,结合理论分析得到的数学模型,利用MATLAB拟合间隔纸靶试验得到的章动数据,得到外弹道起始段弹丸章动规律半经验表达式。该方法解决了纸靶法离散化测试数据处理和判读问题,可较准确得出章动周期,并解决传统章动测试离散化数据无法给出最大章动角真值且系统偏小的问题。

Fuse technology concerns projectile trajectory initial segment nutation law issues, semi-empirical expressions of nutation law were got in initial segment of projectile exterior ballistic by mathematical model, external ballistics theory obtained and MATLAB to fit the data. Processing and interpretation issues were solved for discrete test data paper target method obtained, and accurate nutation cycle can be obtained. The problem solved is traditional nutation test discrete data can't give real maximum nutation angle and the system is too small.