基于微多普勒估计进动锥体目标特征参数

摘要

锥体目标时频分布是目标的微动及结构信息的联合表征，针对此提出了一种利用微多普勒估计进动锥体目标特征参数的方法。首先分析了进动锥体目标散射源微多普勒的理论解，并利用三角函数降幂公式将其归纳整理为多阶谐波分量的合成，然后利用目标跟踪技术获取了不同散射源的微多普勒，最后依据锥顶及锥底不同谐波分量与目标特征参数的关系，提出了一种特征参数的估算方法。可为空间进动锥体目标识别提供一定参考。%Cone target’s time-frequency distribution is the symbols of micro-motion and structure informa-tion,for this matter,a characteristic parameters estimation method of procession cone target based on micro-Doppler is proposed.The theoretical micro-Doppler of procession cone target’s scattering source is deduced, which is decomposed into the synthesis of many order harmonic components by descending power formula of trigonometric function,then the target tracking technology is introduced to gain different scattering sources’mi-cro-Doppler,and a method to gain the characteristic parameters is proposed finally by the relation between the harmonic component and the characteristic parameter,which may offer some references for spatial cone target’s recognition.