The Characteristic of Range Profile and Micro-Motion Feature Extraction for Rotary Target

MA Liang; WANG Tao; FENG De-jun; LIU Jin; WANG Xue-song

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The Characteristic of Range Profile and Micro-Motion Feature Extraction for Rotary Target

更新时间：2025-07-16

- The Characteristic of Range Profile and Micro-Motion Feature Extraction for Rotary Target
- Acta Electronica Sinica Vol. 36, Issue 12, Pages: 2273-2279(2008)
- 作者机构：
  
  国防科学技术大学电子科学与工程学院,湖南,长沙,410073
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN95
- Published Online：25 December 2008，
  
  Published：2008
- 稿件说明：
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MA Liang, WANG Tao, FENG De-jun, et al. The Characteristic of Range Profile and Micro-Motion Feature Extraction for Rotary Target[J]. Acta Electronica Sinica, 2008, 36(12): 2273-2279.
DOI：

MA Liang, WANG Tao, FENG De-jun, et al. The Characteristic of Range Profile and Micro-Motion Feature Extraction for Rotary Target[J]. Acta Electronica Sinica, 2008, 36(12): 2273-2279. DOI：

摘要

本文提出了利用旋转目标高分辨一维距离像的长度变化特性提取目标旋转半径和旋转速度等微运动特征的新方法.重点分析了旋转目标一维距离像的长度特性

指出当目标旋转时

微运动造成的一维像"虚假"长度和目标真实长度在雷达视线上的投影共同构成了目标的一维距离像.当目标匀速转动时

其一维距离像的长度变化服从正弦绝对值曲线

并根据这种变化特性

提出了两种提取旋转目标微运动特征的新方法.最后

设计了外场试验

通过实测数据证明了本文的观点和特征提取方法的有效性.

Abstract

For rotary target

the method for extracting micro-motion feature by using the length of range profile is studied.Firstly

the characteristic of range profile for rotary target is analyzed.The length of range profile can be separated into two parts.One is the radial length of the target

and the other is the illusive length which is produced by rotation.Then

while target is rotating with a constant angular velocity

the length of range profile obeys the absolute value of sinusoid.The radius and the angular velocity can be estimated by using this variety of length.Finally

the results of feature extraction by utilizing the measured data practically in field are shown in figures

which validate the ideas.

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