NDLI: Stepped frequency synthetic preprocessing algorithm for inverse synthetic aperture radar imaging in fast moving target echo model

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Stepped frequency synthetic preprocessing algorithm for inverse synthetic aperture radar imaging in fast moving target echo model

Content Provider	IET Digital Library
Author	Zhou, Fang Sun, Guang Cai Xia, Xiang Gen Xing, Meng Dao Bao, Zheng
Abstract	This paper first introduces an accurate inverse synthetic aperture radar echo model for the fast moving targets. In this model, the target's motion during the time periods of the pulse transmitting, propagating and receiving have been taken into account, and some problems, which have been ignored in the ‘stop–go’ model, may occur, for example, the varied ambiguity numbers and the drifted frequency centre. These problems will cause many difficulties in obtaining a high resolution range profile (HRRP) synthesis. To deal with these problems, a stepped frequency synthetic preprocessing (SFSP) algorithm is presented. The key of the proposed algorithm is synthetic preprocessing, including Doppler ambiguity suppression, echo coherence restoration and frequency centre correction, respectively. By completing the preprocessing, the HRRP can be achieved by a bandwidth synthesis and a well-focused image can be obtained by a keystone transform and an azimuth process, respectively. The simulation results validate the proposed SFSP algorithm by comparing it with the algorithm in the existing extended ‘stop–go’ model.
Starting Page	864
Ending Page	874
Page Count	11
ISSN	17518784
Volume Number	8
e-ISSN	17518792
Issue Number	Issue 8, Oct (2014)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-rsn/8/8
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-rsn.2013.0154
Journal	IET Radar, Sonar & Navigation
Publisher Date	2014-03-12
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Echo Coherence Restoration Fast Moving Target Echo Model Frequency Centre Correction High Resolution Range Profile Synthesis Including Doppler Ambiguity Suppression Inverse Synthetic Aperture Radar Imaging Optical, Image And Video Signal Processing Pulse Propagation Pulse Transmitting Radar Equipment Radar Imaging Radar Theory Stepped Frequency Synthetic Preprocessing Algorithm Synthetic Aperture Radar System And Application Target Motion
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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Stepped frequency synthetic preprocessing algorithm for inverse synthetic aperture radar imaging in fast moving target echo model

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