基于连续波雷达微多普勒效应的弹丸转速测试方法  

Testing Method of Projectile Rotating Speed Based on Micro-Doppler Effect of CW Radars

作　　者：张万君 吴晓颖[1] 冷雪冰 李文珍[1] 纪兵[1] 

机构地区：[1]装甲兵工程学院兵器工程系 [2]63861部队

出　　处：《装甲兵工程学院学报》2012年第5期47-50,共4页Journal of Academy of Armored Force Engineering

基　　金：国家自然科学基金资助项目(61174219)

摘　　要：针对目前弹丸转速测试方法的局限,提出了一种新的弹丸转速测试方法,利用连续波雷达探测弹丸旋转产生的微多普勒效应,建立了弹丸旋转运动引起的雷达回波微多普勒调制数学模型,推导了微多普勒频率与弹丸转速的解析关系,给出了弹丸转速微多普勒数据的实测方案,并通过弹丸旋转微动辨识与数字解调技术,提取出弹丸转速,经靶场试验验证,测试效果良好。Aiming at the limitation of testing methods for projectile rotating speed, a new testing method of projectile rotating speed is put forward. The radar echo micro-Doppler modulated mathematic model caused by projectile rotation is built by using micro-Doppler effect resulted from CW radar detection of projectile rotations, the internal relationship between micro-Doppler frequency and projectile rotating speed is derived, and testing methods of micro-Doppler data for projectile rotating speed is provided. The projectile rotating speed is extracted by micro-motion identification and digital demodulation of projectile rotation, and the good testing effect is validated by shooting range test.

关 键 词：弹丸转速 微多普勒 雷达测试 微动 

分 类 号：TJ410.33[兵器科学与技术—火炮、自动武器与弹药工程] TN953.1[电子电信—信号与信息处理]