Motion Compensation for Low Frequency UWB SAR Based on the Modified Wavenumber Domain Algorithm

AN Dao-xiang; HUANG Xiao-tao; ZHOU Zhi-min

您当前的位置：

首页 >

文章列表页 >

Motion Compensation for Low Frequency UWB SAR Based on the Modified Wavenumber Domain Algorithm

更新时间：2025-07-16

- Motion Compensation for Low Frequency UWB SAR Based on the Modified Wavenumber Domain Algorithm
- Acta Electronica Sinica Vol. 38, Issue 12, Pages: 2839-2845(2010)
- 作者机构：
  
  国防科技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： TN957.5
- Published：2010
- 稿件说明：
移动端阅览
AN Dao-xiang, HUANG Xiao-tao, ZHOU Zhi-min. Motion Compensation for Low Frequency UWB SAR Based on the Modified Wavenumber Domain Algorithm[J]. Acta Electronica Sinica, 2010, 38(12): 2839-2845.
DOI：

AN Dao-xiang, HUANG Xiao-tao, ZHOU Zhi-min. Motion Compensation for Low Frequency UWB SAR Based on the Modified Wavenumber Domain Algorithm[J]. Acta Electronica Sinica, 2010, 38(12): 2839-2845. DOI：

摘要

波数域(WD)算法具有精确的去耦合能力

适用于大波束角低频超宽带合成孔径雷达(UWB SAR).但传统WD算法不易和运动补偿相结合

限制了该算法的应用.尤其是在无传感器数据可利用的情况下

要获得高质量机载低频UWB SAR实测图像十分困难.本文提出了一种改进WD(MWD)算法

MWD算法通过采用修正Stolt映射

实现了基于回波数据的运动参数估计和精确运动补偿.此外

文中还根据MWD算法特点

对传统运动补偿方法进行改进

提高了MWD算法对实测低频UWB SAR数据的聚焦性能.仿真实验和实测数据成像实验验证了所提方法的有效性.

Abstract

The wavenumber domain (WD) algorithm has the ability to handle the range-azimuth coupling correctly

which is suitable for processing the wide-beam low frequency ultra-wideband synthetic aperture radar (UWB SAR) data.But the traditional WD algorithm is difficult to integrate with motion compensation method

which limits its application.Especially

in the case of no navigational instrument data available

it is difficult to achieve high quality low frequency UWB SAR image.In this paper

a modified WD (MWD) algorithm is proposed.Based on the MWD algorithm

the parameters estimation from the raw data and the accurately motion compensation could be implemented.Moreover

some modifications were made on the traditional motion compensation method according to the characteristics of MWD

and the focusing performance of MWD algorithm on low frequency UWB SAR raw data is improved.At last

some simulation experiments and the raw data processing results demonstrated the effectiveness of the proposed algorithms.

关键词

Keywords

references

Views

1310

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

A Three-Stage Motion Compensation Method for Small Size Airborne Low Frequency UWB SAR

Analysis of Motion Compensation for FMCW Synthetic Aperture Radar

Cross-Modal SAR Target Detection via Progressive Knowledge Transfer

End-to-End Full Complex-Valued Domain SAR Target Classification Neural Network

Related Author

JIA Gao-wei

CHANG Wen-ge

ZHAO Guo-wei

JIANG Jia-qing

DONG Gang-gang

FANG Cheng

GUAN Fang-heng

LI Tian-chi

Related Institution

School of Electronic Science and Engineering,National University of Defense Technology

National Key Laboratory of Radar Signal Processing, Xidian University

College of Electronic Information and Automation， Civil Aviation University of China

School of Computer Science and Technology， University of Science and Technology of China

The 10th Research Institute of China Electronics Technology Group Corporation

⁰