基于分数阶傅里叶变换的两步运动补偿CS算法

针对传统的基于傅里叶变换的两步运动补偿SAR成像算法在处理非平稳运动误差时效果不显著的问题，提出了基于分数阶傅里叶变换（FrFr）的两步运动补偿cs算法，以期消除距离向运动误差的影响，从而获得高质量的SAR图像。仿真结果和基于实测SAR数据的成像结果都表明，所提算法能很好地消除距离向运动误差的影响。...

Full description

Saved in:
Bibliographic Details
Published in计算机应用研究 Vol. 32; no. 1; pp. 89 - 92
Main Author 谭鸽伟 潘光武 林薇
Format Journal Article
LanguageChinese
Published 华侨大学信息科学与工程学院,福建厦门,361021 2015
Subjects
CS成像算法
两步运动补偿
分数阶傅里叶变换
运动误差
高分辨率SAR图像
运动误差
两步运动补偿
high resolution SAR images
CS成像算法
fractional Fourier transform
CS imaging algorithm
分数阶傅里叶变换
高分辨率SAR图像
motion error
two-step motion compensation
Online AccessGet full text
ISSN1001-3695
DOI10.3969/j.issn.1001-3695.2015.01.021

Cover

More Information
Summary:针对传统的基于傅里叶变换的两步运动补偿SAR成像算法在处理非平稳运动误差时效果不显著的问题，提出了基于分数阶傅里叶变换（FrFr）的两步运动补偿cs算法，以期消除距离向运动误差的影响，从而获得高质量的SAR图像。仿真结果和基于实测SAR数据的成像结果都表明，所提算法能很好地消除距离向运动误差的影响。
Bibliography:51-1196/TP
fractional Fourier transform; motion error; two-step motion compensation; CS imaging algorithm; high resolution SAR images
TAN Ge-wei, PAN Guang-wu, LIN Wei （School of Information Science ＆ Engineering, Huaqiao University, Xiamen Fujian 361021, China）
Pointing to the problem that the effect of error elimination was not obvious in processing non-stationary motion error using the traditional FFT based two-step motion compensation combined with SAR imaging algorithm,this paper proposed two- step motion compensation combined with CS algorithm based on the fractional Fourier transform（FrFF） ,which could eliminate the influence of range motion error, so as to obtain high quality SAR images. The simulation results and the imaging results of real SAR data show that the proposed algorithm can eliminate the influence of range motion error effectively.
ISSN:1001-3695
DOI:10.3969/j.issn.1001-3695.2015.01.021