摘要
小口径弹药所配空炸引信的定距精度受多种因素的影响,对这些因素进行了分类并分别采用相应的策略进行修正,提高了引信定距的精度.利用短时傅立叶变换对弹道弹丸旋转信号进行时频分析,分解出不同的误差因素类型.提出了相应3类误差修正的策略,描述了炮口初速误差修正的计时-计速复合体制和计时-计转数复合体制.通过试验,验证了误差分类的正确性,所得结论能为引信设计提供参考.
The shellburst point precision controlled by air bursting range fuze is very important for the nearest antimissile defense barrier, which is influenced by many factors. The .factors were classified, and the fuze fixed precision was ensured by using appropriate correction method. Time frequency analysis of ballistic projectile's rotation signal was carried out by Short Time Fourier Transform (STFT) method, and the type of error factors was obtained, which was accord with experiment results. Three error correction methods were brought forward. Time-speed com- pound and time-amended methods of error correction for muzzle velocity were described. Experiment shows that the error classification is correct. The conclusion can offer reference for fuze design.
出处
《弹道学报》
CSCD
北大核心
2008年第3期75-78,共4页
Journal of Ballistics
关键词
引信
定距
修正
误差
fuze
ranging
modification
error