2D ISAR Imaging Algorithm for Rotating Micro-Motion Target Based on RWT

WU Liang; LI Xiang; WEI Xi-zhang; ZHANG Xu-feng; LING Yong-shun

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2D ISAR Imaging Algorithm for Rotating Micro-Motion Target Based on RWT

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- 2D ISAR Imaging Algorithm for Rotating Micro-Motion Target Based on RWT
- Acta Electronica Sinica Vol. 39, Issue 6, Pages: 1302-1308(2011)
- 作者机构：
  
  1. 国防科技大学电子科学与工程学院,湖南,长沙,410073
  2. 解放军电子工程学院,安徽,合肥,230337
  3. 国防科技大学电子科学与工程学院湖南长沙,410073
  4. 解放军电子工程学院安徽合肥,230337
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN958
- Published：2011
- 稿件说明：
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WU Liang, LI Xiang, WEI Xi-zhang, et al. 2D ISAR Imaging Algorithm for Rotating Micro-Motion Target Based on RWT[J]. Acta Electronica Sinica, 2011, 39(6): 1302-1308.
DOI：

WU Liang, LI Xiang, WEI Xi-zhang, et al. 2D ISAR Imaging Algorithm for Rotating Micro-Motion Target Based on RWT[J]. Acta Electronica Sinica, 2011, 39(6): 1302-1308. DOI：

摘要

本文针对旋转微动目标的二维ISAR成像问题

首先

分析了目标旋转微动及刚体部件在距离-慢时间域的回波特性;其次

提出了基于解正弦调频RWT的旋转微动部件成像算法

同时

提取旋转微动散射点的位置参数并滤除其回波

对剩余回波采用基于RWT方法进行刚体回波重建

并利用传统RD算法获得刚体ISAR像;最后

仿真结果证明了本文算法的有效性.

Abstract

To resolve the problem of 2D ISAR imaging of rotating micro-motion targets

firstly

this paper analysis the range-slow-time echo characteristics of rotating micro-motion and rigid parts.The Sine-Demodulation RWT based imaging algorithm for rotating micro-motion parts is proposed.The position parameters of rotating micro-motion scatters are estimated and their echoes are removed.The remained echoes

based on RWT

are used to reconstruct the rigid signals and ISAR imaging for rigid parts is performed by RD algorithm.Finally

simulation results have proved the validity of the proposed algorithm.

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