雷达科学与技术2017，Vol.15Issue(1)：13-18,28,7.DOI:10.3969/j.issn.1672-2337.2017.01.003
一种旋翼叶片微动特征提取新方法
A New Method for Micro-Motion Signature Extraction of Rotor Blades
摘要
Abstract
The micro-Doppler(m-D) effect induced by the rotating motion of the rotor target can be used to extract the micro-motion signature exactly,which can provide an important basis for the accurate indentification of the target.Taking rotor blades as an example,a fast extraction method based on the autocorrelation function and the image domain is proposed in this paper.Firstly,based on the periodicity of the target's echo,it can realize the fast extraction of the rotation frequency by finding the correlation between the peak position of the echo autocorrelation function and the rotation frequency.Then,the edge information of the m-D signature is extracted in image domain.The position and initial phase of the scattering points are obtained by using the edge information.Computer simulation verifies the effectiveness of the proposed method.关键词
相关性/图像域/旋翼叶片/特征提取Key words
correlation/image domain/rotor blades/signature extraction分类
信息技术与安全科学引用本文复制引用
陈永彬,李少东,杨军,陈梁栋..一种旋翼叶片微动特征提取新方法[J].雷达科学与技术,2017,15(1):13-18,28,7.
