一种基于弹目交会运动特征的引信信号处理算法设计  

Design of Fuze Signal Processing Algorithm Based on the Feature of Missile-target Rendezvous Motion

作　　者：程氡[1] 

机构地区：[1]中国航天科工集团25所,北京100854

出　　处：《制导与引信》2010年第2期27-30,共4页Guidance & Fuze

摘　　要：分析了在引信工作阶段,弹目交会过程中瞬时多普勒频率的变化规律,指出瞬时多普勒频率变化可以分为三个特征显著的区域。根据这三个区域的变化特征,可以引入校正相位,消弱信号非稳定性,从而增大信号积累时间。经过相位校正,仍然可以使用传统的FFT处理,对信号进行频率估计。通过分析校正的结果,可以更精确地估计弹目交会的运动参数。Presents an analysis of the feature of the instantaneous Doppler frequency in missile-target rendezvous motion for fuze digital signal processing,which says that the instantaneous Doppler frequency changes obviously in three ranges with three different types of features.According to the features of the instantaneous Doppler frequency,import phase correction,weaken the non-stability and obtain longer accumulation period.Hence traditional FFT method can still be implemented to estimate frequency.With the resu...

关 键 词：多普勒频率 相位校正 信号处理 

分 类 号：TJ430.36[兵器科学与技术—火炮、自动武器与弹药工程]