给出了微动和微多普勒一般定义,推导了任意运动规律的点目标的微多普勒计算公式,引入了微多普勒率的概念,提出了使用微多普勒估计微动目标运动参数的方法,给出了使用时频分布计算微多普勒的方法,并对典型微动目标的微多普勒进行了仿真,证明理论分析的正确。
In this paper, the conceptions of micro-motion and micro-Doppler are firstly introduced. A micro-Doppler expression is derived for a micro-motion point scattering target with arbitrary motion law, and then micro-Doppler rate is introduced. A method with micro-Doppler is developed to estimate the motion parameters of a micro-motion target. Then time-frequency analysis is used to calculate micro-Doppler and micro-Doppler rate. Last, the simulation for familiar micro-motion targets confirms theoretical analysis.