基于微多普勒分析的末制导炮弹转速测量  

Spin-rate Measurement of Terminal Homing Projectile Based on Micro-Doppler Analysis

作　　者：赵伊宁 冷雪冰[2] 

机构地区：[1]装备学院,北京101416 [2]中国白城兵器试验中心,吉林白城137001

出　　处：《弹箭与制导学报》2015年第1期159-161,共3页Journal of Projectiles,Rockets,Missiles and Guidance

摘　　要：为解决末制导炮弹转速测量难题,建立了一种基于微多普勒分析的转速测量方法。在对N个翼片形成的多散射中心微多普勒效应分析的基础上,通过对雷达回波进行时频分析,构建极值速度序列。该序列的变化周期是自旋周期的1/N。对极值速度序列进行时域固周测时,变换后可以获得弹丸转速。实际数据处理结果表明,转速和设计值相符。In order to solve the spin-rate measurement problem of the terminal homing projectile,a new method based on micro-Doppler analysis is put forward. Through analyzing the micro-Doppler effect caused by the N wings,multi scatter centers echo model is established.After time-frequency analyzing,the maxim（ minim） velocity at every time makes new data. The rotation period is N times of the sequence period. Measure the time of fix periods of the new sequence,then the spin-rate can be calculated. The results show that the outcome of processing the real data accords with the design value.

关 键 词：末制导炮弹 微多普勒 速度 转速 

分 类 号：TN95[电子电信—信号与信息处理]