摆动周期 meaning in English

deflection period
period of swing
roll period
swing period

Obtaining the formula of the swinging period of a synchronous satellite with lagrange ' s equation
用拉格朗日方程推导同步卫星的摆动周期
Abstract : this paper introduces the principles of doppler radar signal processing method in the modulation . it provides the processing method for projectile tracer time , the burst time , rocket engine working time , projectile spin and flight attitude from signal of doppler radar
文摘:介绍了测速雷达调制域弹道信息处理方法的工作原理，详细论述了从测速雷达信号中处理弹丸曳光时间、底排燃烧工作时间、火箭发动机工作时间、弹丸旋转速度、飞行姿态角和摆动周期等弹道信息的方法。