基于微多普勒的空间锥体目标微动分类

发布时间：2018-01-12 05:36

本文关键词：基于微多普勒的空间锥体目标微动分类　出处：《北京航空航天大学学报》2017年07期 　论文类型：期刊论文

【摘要】：空间锥体目标在飞行时存在多种微动,具体可分为章动、进动及自旋,准确获取目标微动形式是弹道目标微动及结构参数估算的前提。首先分析了3种微动形式下锥体目标锥顶及锥底滑动型散射源微多普勒及其频谱分布特性,发现自旋锥体目标散射源微多普勒为0 Hz,章动锥体目标任意散射源微多普勒谱的峰值非等间距分布,进动锥体目标任意散射源微多普勒谱的峰值等间距分布。据此提出利用微多普勒阈值识别自旋、利用微多普勒谱峰值是否等间距分布识别章动和进动的分类方法。最后通过仿真说明了本文分类方法的有效性,可为空间锥体目标微动分类提供一定的参考。
[Abstract]:There are a variety of micro space cone target in flight, which can be divided into the spin precession and nutation, and accurately obtain the target form is a prerequisite for estimation of ballistic target motion and micro structural parameters. First, analyzed 3 kinds of micro form of cone cone and cone bottom sliding type micro Doppler scattering source and its spectrum characteristics, it is found that the spin the cone target scattering source of micro Doppler is 0 Hz, nutation cone of arbitrary scattering source micro Doppler spectrum peak non equidistant distribution, the peak value of precession cone spacing between arbitrary scattering source of micro Doppler spectrum. Puts forward the use of micro Doppler threshold recognition spin, using micro Doppler spectrum peak is equidistant classification recognition of nutation distribution and precession. The simulation results show the validity of this classification method, which can provide a reference for micro space cone target classification.

【作者单位】：北京航空航天大学航空科学与工程学院;试验物理与计算数学国家重点实验室;
【分类号】：TN95
【正文快照】： 网络出版地址:www.cnki.net/kcms/detail/11.2625.V.20161114.0913.008.html引用格式:束长勇,张生俊,黄沛霖,等.基于微多普勒的空间锥体目标微动分类[J].北京航空航天大学学报,2017,43(7):1387-1394.SHU C Y,ZHANG S J,HUANG P L,et al.Micro-motion classification of spatia

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