A novel helicopter-borne terahertz SAR imaging algorithm based on Keystone transform

Huan Wang; Yuan Zhang; Bingbing Wang; Jinping Sun

doi:10.1109/ICOSP.2014.7015335

A novel helicopter-borne terahertz SAR imaging algorithm based on Keystone transform

Huan Wang
, Yuan Zhang
, Bingbing Wang
, Jinping Sun

电子信息工程学院

Beihang University

科研成果: 会议稿件 › 论文 › 同行评审

16 引用（Scopus）

摘要

The instability of helicopter flight brings motion errors in the conventional synthetic aperture radar (SAR) imaging. Combined with terahertz (THz) technology, the influence of range migration and low frequency motion error can be significantly reduced. However, it leads the system to be extremely sensitive to platform vibration, which causes paired echoes and deteriorates image quality. A method on platform vibration compensation is proposed in this paper. On the basis of the analytic formula derivation in 2-D frequency domain for the signal, Keystone transform is employed to perform range migration correction. Then platform vibration is compensated in range-Doppler domain. Finally, deghosted images are obtained. The simulation results validate the effectiveness.

源语言	英语
页	1958-1962
页数	5
DOI	https://doi.org/10.1109/ICOSP.2014.7015335
出版状态	已出版 - 2014
活动	2014 12th IEEE International Conference on Signal Processing, ICSP 2014 - Hangzhou, 中国期限: 19 10月 2014 → 23 10月 2014

会议

会议	2014 12th IEEE International Conference on Signal Processing, ICSP 2014
国家/地区	中国
市	Hangzhou
时期	19/10/14 → 23/10/14

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10.1109/ICOSP.2014.7015335

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@conference{d3745df90256445a95d1b473e81056cc,

title = "A novel helicopter-borne terahertz SAR imaging algorithm based on Keystone transform",

abstract = "The instability of helicopter flight brings motion errors in the conventional synthetic aperture radar (SAR) imaging. Combined with terahertz (THz) technology, the influence of range migration and low frequency motion error can be significantly reduced. However, it leads the system to be extremely sensitive to platform vibration, which causes paired echoes and deteriorates image quality. A method on platform vibration compensation is proposed in this paper. On the basis of the analytic formula derivation in 2-D frequency domain for the signal, Keystone transform is employed to perform range migration correction. Then platform vibration is compensated in range-Doppler domain. Finally, deghosted images are obtained. The simulation results validate the effectiveness.",

keywords = "Helicopter, Keystone transform, Paired echoes, Synthetic aperture radar (SAR), Terahertz (THz)",

author = "Huan Wang and Yuan Zhang and Bingbing Wang and Jinping Sun",

note = "Publisher Copyright: {\textcopyright} 2014 IEEE.; 2014 12th IEEE International Conference on Signal Processing, ICSP 2014 ; Conference date: 19-10-2014 Through 23-10-2014",

year = "2014",

doi = "10.1109/ICOSP.2014.7015335",

language = "英语",

pages = "1958--1962",

}

TY - CONF

T1 - A novel helicopter-borne terahertz SAR imaging algorithm based on Keystone transform

AU - Wang, Huan

AU - Zhang, Yuan

AU - Wang, Bingbing

AU - Sun, Jinping

PY - 2014

Y1 - 2014

N2 - The instability of helicopter flight brings motion errors in the conventional synthetic aperture radar (SAR) imaging. Combined with terahertz (THz) technology, the influence of range migration and low frequency motion error can be significantly reduced. However, it leads the system to be extremely sensitive to platform vibration, which causes paired echoes and deteriorates image quality. A method on platform vibration compensation is proposed in this paper. On the basis of the analytic formula derivation in 2-D frequency domain for the signal, Keystone transform is employed to perform range migration correction. Then platform vibration is compensated in range-Doppler domain. Finally, deghosted images are obtained. The simulation results validate the effectiveness.

AB - The instability of helicopter flight brings motion errors in the conventional synthetic aperture radar (SAR) imaging. Combined with terahertz (THz) technology, the influence of range migration and low frequency motion error can be significantly reduced. However, it leads the system to be extremely sensitive to platform vibration, which causes paired echoes and deteriorates image quality. A method on platform vibration compensation is proposed in this paper. On the basis of the analytic formula derivation in 2-D frequency domain for the signal, Keystone transform is employed to perform range migration correction. Then platform vibration is compensated in range-Doppler domain. Finally, deghosted images are obtained. The simulation results validate the effectiveness.

KW - Helicopter

KW - Keystone transform

KW - Paired echoes

KW - Synthetic aperture radar (SAR)

KW - Terahertz (THz)

UR - https://www.scopus.com/pages/publications/84988250040

U2 - 10.1109/ICOSP.2014.7015335

DO - 10.1109/ICOSP.2014.7015335

M3 - 论文

AN - SCOPUS:84988250040

SP - 1958

EP - 1962

T2 - 2014 12th IEEE International Conference on Signal Processing, ICSP 2014

Y2 - 19 October 2014 through 23 October 2014

ER -

A novel helicopter-borne terahertz SAR imaging algorithm based on Keystone transform

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