NDLI: Signal modelling for ground moving target in complex image domain of multi-channel SAR

Content Provider	IEEE Xplore Digital Library
Author	Jia Xu Yu Zuoi Bing Xia Xiang-Gen Xia Ying-Ning Peng Yong-Liang Wang
Copyright Year	2010
Description	Author affiliation: Department of Electrical and Computer Engineering, University of Delaware, Newark, DE 19716, USA (Xiang-Gen Xia) \|\| Radar Academy of Airforce, Wuhan 430010, China (Yong-Liang Wang) \|\| Department of Electronic Engineering, Tsinghua University, Beijing 100084, China (Jia Xu; Yu Zuoi; Bing Xia; Ying-Ning Peng)
Abstract	For along-track multi-channel synthetic aperture radar (SAR), this paper proposes a novel ground moving target signal model in the high-resolution complex image domain. It is shown that moving targets can be divided into three types according to the 2D motion distribution and the SPP approximation conditions. Moreover, a single target can be split into two targets in the image. All types of targets will have the same Doppler interferometric effect along multichannel images, which is decided by the target's ambiguous Doppler frequency. Furthermore, with our derived signal model, the complex image properties, i.e., amplitude reduction, azimuth shift, azimuth defocus, range blur, 2D slant, second-order phase modulation, split, interferometry and the effects of 2D accelerations are analyzed for airborne and spaceborne SAR, respectively. Finally, some experimental results are also provided to demonstrate the effectiveness of the proposed signal model and analysis.
Starting Page	441
Ending Page	445
File Size	871167
Page Count	5
File Format	PDF
ISBN	9781424458110
ISSN	10975659
e-ISBN	9781424458127
DOI	10.1109/RADAR.2010.5494579
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-05-10
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Azimuth Synthetic aperture radar Object detection Interferometry Frequency Phase modulation Image analysis Spaceborne radar Signal analysis Parameter estimation Doppler ambiguity multi-channel synthetic aperture radar (SAR) azimuth shift azimuth defocus range blur split interferometry
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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